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Bug #12402 » OSDMonitor.cc

code file - huanwen ren, 07/20/2015 02:27 AM

 
// -*- mode:C++; tab-width:8; c-basic-offset:2; indent-tabs-mode:t -*-
// vim: ts=8 sw=2 smarttab
/*
* Ceph - scalable distributed file system
*
* Copyright (C) 2004-2006 Sage Weil <sage@newdream.net>
* Copyright (C) 2013,2014 Cloudwatt <libre.licensing@cloudwatt.com>
* Copyright (C) 2014 Red Hat <contact@redhat.com>
*
* Author: Loic Dachary <loic@dachary.org>
*
* This is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License version 2.1, as published by the Free Software
* Foundation. See file COPYING.
*
*/

#include <sstream>

#include "OSDMonitor.h"
#include "Monitor.h"
#include "MDSMonitor.h"
#include "PGMonitor.h"

#include "MonitorDBStore.h"

#include "crush/CrushWrapper.h"
#include "crush/CrushTester.h"
#include "crush/CrushTreeDumper.h"

#include "messages/MOSDFailure.h"
#include "messages/MOSDMarkMeDown.h"
#include "messages/MOSDMap.h"
#include "messages/MMonGetOSDMap.h"
#include "messages/MOSDBoot.h"
#include "messages/MOSDAlive.h"
#include "messages/MPoolOp.h"
#include "messages/MPoolOpReply.h"
#include "messages/MOSDPGTemp.h"
#include "messages/MMonCommand.h"
#include "messages/MRemoveSnaps.h"
#include "messages/MOSDScrub.h"

#include "common/TextTable.h"
#include "common/Timer.h"
#include "common/ceph_argparse.h"
#include "common/perf_counters.h"
#include "common/strtol.h"

#include "common/config.h"
#include "common/errno.h"

#include "erasure-code/ErasureCodePlugin.h"

#include "include/compat.h"
#include "include/assert.h"
#include "include/stringify.h"
#include "include/util.h"
#include "common/cmdparse.h"
#include "include/str_list.h"
#include "include/str_map.h"

#define dout_subsys ceph_subsys_mon
#undef dout_prefix
#define dout_prefix _prefix(_dout, mon, osdmap)
static ostream& _prefix(std::ostream *_dout, Monitor *mon, OSDMap& osdmap) {
return *_dout << "mon." << mon->name << "@" << mon->rank
<< "(" << mon->get_state_name()
<< ").osd e" << osdmap.get_epoch() << " ";
}

bool OSDMonitor::_have_pending_crush()
{
return pending_inc.crush.length();
}

CrushWrapper &OSDMonitor::_get_stable_crush()
{
return *osdmap.crush;
}

void OSDMonitor::_get_pending_crush(CrushWrapper& newcrush)
{
bufferlist bl;
if (pending_inc.crush.length())
bl = pending_inc.crush;
else
osdmap.crush->encode(bl);

bufferlist::iterator p = bl.begin();
newcrush.decode(p);
}

void OSDMonitor::create_initial()
{
dout(10) << "create_initial for " << mon->monmap->fsid << dendl;

OSDMap newmap;

bufferlist bl;
mon->store->get("mkfs", "osdmap", bl);

if (bl.length()) {
newmap.decode(bl);
newmap.set_fsid(mon->monmap->fsid);
} else {
newmap.build_simple(g_ceph_context, 0, mon->monmap->fsid, 0,
g_conf->osd_pg_bits, g_conf->osd_pgp_bits);
}
newmap.set_epoch(1);
newmap.created = newmap.modified = ceph_clock_now(g_ceph_context);

// encode into pending incremental
newmap.encode(pending_inc.fullmap, mon->quorum_features | CEPH_FEATURE_RESERVED);
pending_inc.full_crc = newmap.get_crc();
dout(20) << " full crc " << pending_inc.full_crc << dendl;
}

void OSDMonitor::update_from_paxos(bool *need_bootstrap)
{
version_t version = get_last_committed();
if (version == osdmap.epoch)
return;
assert(version >= osdmap.epoch);

dout(15) << "update_from_paxos paxos e " << version
<< ", my e " << osdmap.epoch << dendl;


/*
* We will possibly have a stashed latest that *we* wrote, and we will
* always be sure to have the oldest full map in the first..last range
* due to encode_trim_extra(), which includes the oldest full map in the trim
* transaction.
*
* encode_trim_extra() does not however write the full map's
* version to 'full_latest'. This is only done when we are building the
* full maps from the incremental versions. But don't panic! We make sure
* that the following conditions find whichever full map version is newer.
*/
version_t latest_full = get_version_latest_full();
if (latest_full == 0 && get_first_committed() > 1)
latest_full = get_first_committed();

if (latest_full > 0) {
// make sure we can really believe get_version_latest_full(); see
// 76cd7ac1c2094b34ad36bea89b2246fa90eb2f6d
bufferlist test;
get_version_full(latest_full, test);
if (test.length() == 0) {
dout(10) << __func__ << " ignoring recorded latest_full as it is missing; fallback to search" << dendl;
latest_full = 0;
}
}
if (get_first_committed() > 1 &&
latest_full < get_first_committed()) {
/* a bug introduced in 7fb3804fb860dcd0340dd3f7c39eec4315f8e4b6 would lead
* us to not update the on-disk latest_full key. Upon trim, the actual
* version would cease to exist but we would still point to it. This
* makes sure we get it pointing to a proper version.
*/
version_t lc = get_last_committed();
version_t fc = get_first_committed();

dout(10) << __func__ << " looking for valid full map in interval"
<< " [" << fc << ", " << lc << "]" << dendl;

latest_full = 0;
for (version_t v = lc; v >= fc; v--) {
string full_key = "full_" + stringify(v);
if (mon->store->exists(get_service_name(), full_key)) {
dout(10) << __func__ << " found latest full map v " << v << dendl;
latest_full = v;
break;
}
}

// if we trigger this, then there's something else going with the store
// state, and we shouldn't want to work around it without knowing what
// exactly happened.
assert(latest_full > 0);
MonitorDBStore::TransactionRef t(new MonitorDBStore::Transaction);
put_version_latest_full(t, latest_full);
mon->store->apply_transaction(t);
dout(10) << __func__ << " updated the on-disk full map version to "
<< latest_full << dendl;
}

if ((latest_full > 0) && (latest_full > osdmap.epoch)) {
bufferlist latest_bl;
get_version_full(latest_full, latest_bl);
assert(latest_bl.length() != 0);
dout(7) << __func__ << " loading latest full map e" << latest_full << dendl;
osdmap.decode(latest_bl);
}

// walk through incrementals
MonitorDBStore::TransactionRef t;
size_t tx_size = 0;
while (version > osdmap.epoch) {
bufferlist inc_bl;
int err = get_version(osdmap.epoch+1, inc_bl);
assert(err == 0);
assert(inc_bl.length());

dout(7) << "update_from_paxos applying incremental " << osdmap.epoch+1 << dendl;
OSDMap::Incremental inc(inc_bl);
err = osdmap.apply_incremental(inc);
assert(err == 0);

if (!t)
t.reset(new MonitorDBStore::Transaction);

// Write out the full map for all past epochs. Encode the full
// map with the same features as the incremental. If we don't
// know, use the quorum features. If we don't know those either,
// encode with all features.
uint64_t f = inc.encode_features;
if (!f)
f = mon->quorum_features;
if (!f)
f = -1;
bufferlist full_bl;
osdmap.encode(full_bl, f | CEPH_FEATURE_RESERVED);
tx_size += full_bl.length();

bufferlist orig_full_bl;
get_version_full(osdmap.epoch, orig_full_bl);
if (orig_full_bl.length()) {
// the primary provided the full map
assert(inc.have_crc);
if (inc.full_crc != osdmap.crc) {
// This will happen if the mons were running mixed versions in
// the past or some other circumstance made the full encoded
// maps divergent. Reloading here will bring us back into
// sync with the primary for this and all future maps. OSDs
// will also be brought back into sync when they discover the
// crc mismatch and request a full map from a mon.
derr << __func__ << " full map CRC mismatch, resetting to canonical"
<< dendl;
osdmap = OSDMap();
osdmap.decode(orig_full_bl);
}
} else {
assert(!inc.have_crc);
put_version_full(t, osdmap.epoch, full_bl);
}
put_version_latest_full(t, osdmap.epoch);

// share
dout(1) << osdmap << dendl;

if (osdmap.epoch == 1) {
t->erase("mkfs", "osdmap");
}

if (tx_size > g_conf->mon_sync_max_payload_size*2) {
mon->store->apply_transaction(t);
t = MonitorDBStore::TransactionRef();
tx_size = 0;
}
}

if (t) {
mon->store->apply_transaction(t);
}

for (int o = 0; o < osdmap.get_max_osd(); o++) {
if (osdmap.is_down(o)) {
// invalidate osd_epoch cache
osd_epoch.erase(o);

// populate down -> out map
if (osdmap.is_in(o) &&
down_pending_out.count(o) == 0) {
dout(10) << " adding osd." << o << " to down_pending_out map" << dendl;
down_pending_out[o] = ceph_clock_now(g_ceph_context);
}
}
}
// blow away any osd_epoch items beyond max_osd
map<int,epoch_t>::iterator p = osd_epoch.upper_bound(osdmap.get_max_osd());
while (p != osd_epoch.end()) {
osd_epoch.erase(p++);
}

/** we don't have any of the feature bit infrastructure in place for
* supporting primary_temp mappings without breaking old clients/OSDs.*/
assert(g_conf->mon_osd_allow_primary_temp || osdmap.primary_temp->empty());

if (mon->is_leader()) {
// kick pgmon, make sure it's seen the latest map
mon->pgmon()->check_osd_map(osdmap.epoch);
}

check_subs();

share_map_with_random_osd();
update_logger();

process_failures();

// make sure our feature bits reflect the latest map
update_msgr_features();
}

void OSDMonitor::update_msgr_features()
{
set<int> types;
types.insert((int)entity_name_t::TYPE_OSD);
types.insert((int)entity_name_t::TYPE_CLIENT);
types.insert((int)entity_name_t::TYPE_MDS);
types.insert((int)entity_name_t::TYPE_MON);
for (set<int>::iterator q = types.begin(); q != types.end(); ++q) {
uint64_t mask;
uint64_t features = osdmap.get_features(*q, &mask);
if ((mon->messenger->get_policy(*q).features_required & mask) != features) {
dout(0) << "crush map has features " << features << ", adjusting msgr requires" << dendl;
Messenger::Policy p = mon->messenger->get_policy(*q);
p.features_required = (p.features_required & ~mask) | features;
mon->messenger->set_policy(*q, p);
}
}
}

bool OSDMonitor::thrash()
{
if (!thrash_map)
return false;

thrash_map--;
int o;

// mark a random osd up_thru..
if (rand() % 4 == 0 || thrash_last_up_osd < 0)
o = rand() % osdmap.get_num_osds();
else
o = thrash_last_up_osd;
if (osdmap.is_up(o)) {
dout(5) << "thrash_map osd." << o << " up_thru" << dendl;
pending_inc.new_up_thru[o] = osdmap.get_epoch();
}

// mark a random osd up/down
o = rand() % osdmap.get_num_osds();
if (osdmap.is_up(o)) {
dout(5) << "thrash_map osd." << o << " down" << dendl;
pending_inc.new_state[o] = CEPH_OSD_UP;
} else if (osdmap.exists(o)) {
dout(5) << "thrash_map osd." << o << " up" << dendl;
pending_inc.new_state[o] = CEPH_OSD_UP;
pending_inc.new_up_client[o] = entity_addr_t();
pending_inc.new_up_cluster[o] = entity_addr_t();
pending_inc.new_hb_back_up[o] = entity_addr_t();
pending_inc.new_weight[o] = CEPH_OSD_IN;
thrash_last_up_osd = o;
}

// mark a random osd in
o = rand() % osdmap.get_num_osds();
if (osdmap.exists(o)) {
dout(5) << "thrash_map osd." << o << " in" << dendl;
pending_inc.new_weight[o] = CEPH_OSD_IN;
}

// mark a random osd out
o = rand() % osdmap.get_num_osds();
if (osdmap.exists(o)) {
dout(5) << "thrash_map osd." << o << " out" << dendl;
pending_inc.new_weight[o] = CEPH_OSD_OUT;
}

// generate some pg_temp entries.
// let's assume the ceph::unordered_map iterates in a random-ish order.
int n = rand() % mon->pgmon()->pg_map.pg_stat.size();
ceph::unordered_map<pg_t,pg_stat_t>::iterator p = mon->pgmon()->pg_map.pg_stat.begin();
ceph::unordered_map<pg_t,pg_stat_t>::iterator e = mon->pgmon()->pg_map.pg_stat.end();
while (n--)
++p;
for (int i=0; i<50; i++) {
unsigned size = osdmap.get_pg_size(p->first);
vector<int> v;
bool have_real_osd = false;
for (int j=0; j < (int)size; j++) {
o = rand() % osdmap.get_num_osds();
if (osdmap.exists(o) && std::find(v.begin(), v.end(), o) == v.end()) {
have_real_osd = true;
v.push_back(o);
}
}
for (vector<int>::iterator q = p->second.acting.begin();
q != p->second.acting.end() && v.size() < size;
++q) {
if (std::find(v.begin(), v.end(), *q) == v.end()) {
if (*q != CRUSH_ITEM_NONE)
have_real_osd = true;
v.push_back(*q);
}
}
if (osdmap.pg_is_ec(p->first)) {
while (v.size() < size)
v.push_back(CRUSH_ITEM_NONE);
}
if (!v.empty() && have_real_osd)
pending_inc.new_pg_temp[p->first] = v;
dout(5) << "thrash_map pg " << p->first << " pg_temp remapped to " << v << dendl;

++p;
if (p == e)
p = mon->pgmon()->pg_map.pg_stat.begin();
}
return true;
}

void OSDMonitor::on_active()
{
update_logger();

if (thrash_map) {
if (mon->is_leader()) {
if (thrash())
propose_pending();
} else {
thrash_map = 0;
}
}

if (mon->is_leader())
mon->clog->info() << "osdmap " << osdmap << "\n";

if (!mon->is_leader()) {
list<MOSDFailure*> ls;
take_all_failures(ls);
while (!ls.empty()) {
dispatch(ls.front());
ls.pop_front();
}
}
}

void OSDMonitor::on_shutdown()
{
dout(10) << __func__ << dendl;

// discard failure info, waiters
list<MOSDFailure*> ls;
take_all_failures(ls);
while (!ls.empty()) {
ls.front()->put();
ls.pop_front();
}
}

void OSDMonitor::update_logger()
{
dout(10) << "update_logger" << dendl;
mon->cluster_logger->set(l_cluster_num_osd, osdmap.get_num_osds());
mon->cluster_logger->set(l_cluster_num_osd_up, osdmap.get_num_up_osds());
mon->cluster_logger->set(l_cluster_num_osd_in, osdmap.get_num_in_osds());
mon->cluster_logger->set(l_cluster_osd_epoch, osdmap.get_epoch());
}

/* Assign a lower weight to overloaded OSDs.
*
* The osds that will get a lower weight are those with with a utilization
* percentage 'oload' percent greater than the average utilization.
*/
int OSDMonitor::reweight_by_utilization(int oload, std::string& out_str,
bool by_pg, const set<int64_t> *pools)
{
if (oload <= 100) {
ostringstream oss;
oss << "You must give a percentage higher than 100. "
"The reweighting threshold will be calculated as <average-utilization> "
"times <input-percentage>. For example, an argument of 200 would "
"reweight OSDs which are twice as utilized as the average OSD.\n";
out_str = oss.str();
return -EINVAL;
}

const PGMap &pgm = mon->pgmon()->pg_map;
vector<int> pgs_by_osd(osdmap.get_max_osd());

// Avoid putting a small number (or 0) in the denominator when calculating
// average_util
double average_util;
if (by_pg) {
// by pg mapping
double weight_sum = 0.0; // sum up the crush weights
unsigned num_pg_copies = 0;
int num_osds = 0;
for (ceph::unordered_map<pg_t,pg_stat_t>::const_iterator p =
pgm.pg_stat.begin();
p != pgm.pg_stat.end();
++p) {
if (pools && pools->count(p->first.pool()) == 0)
continue;
for (vector<int>::const_iterator q = p->second.acting.begin();
q != p->second.acting.end();
++q) {
if (*q >= (int)pgs_by_osd.size())
pgs_by_osd.resize(*q);
if (pgs_by_osd[*q] == 0) {
weight_sum += osdmap.crush->get_item_weightf(*q);
++num_osds;
}
++pgs_by_osd[*q];
++num_pg_copies;
}
}

if (!num_osds || (num_pg_copies / num_osds < g_conf->mon_reweight_min_pgs_per_osd)) {
ostringstream oss;
oss << "Refusing to reweight: we only have " << num_pg_copies
<< " PGs across " << num_osds << " osds!\n";
out_str = oss.str();
return -EDOM;
}

average_util = (double)num_pg_copies / weight_sum;
} else {
// by osd utilization
int num_osd = MIN(1, pgm.osd_stat.size());
if ((uint64_t)pgm.osd_sum.kb * 1024 / num_osd
< g_conf->mon_reweight_min_bytes_per_osd) {
ostringstream oss;
oss << "Refusing to reweight: we only have " << pgm.osd_sum.kb
<< " kb across all osds!\n";
out_str = oss.str();
return -EDOM;
}
if ((uint64_t)pgm.osd_sum.kb_used * 1024 / num_osd
< g_conf->mon_reweight_min_bytes_per_osd) {
ostringstream oss;
oss << "Refusing to reweight: we only have " << pgm.osd_sum.kb_used
<< " kb used across all osds!\n";
out_str = oss.str();
return -EDOM;
}

average_util = (double)pgm.osd_sum.kb_used / (double)pgm.osd_sum.kb;
}

// adjust down only if we are above the threshold
double overload_util = average_util * (double)oload / 100.0;

// but aggressively adjust weights up whenever possible.
double underload_util = average_util;

ostringstream oss;
char buf[128];
snprintf(buf, sizeof(buf), "average %04f, overload %04f. ",
average_util, overload_util);
oss << buf;
std::string sep;
oss << "reweighted: ";
bool changed = false;
for (ceph::unordered_map<int,osd_stat_t>::const_iterator p =
pgm.osd_stat.begin();
p != pgm.osd_stat.end();
++p) {
float util;
if (by_pg) {
util = pgs_by_osd[p->first] / osdmap.crush->get_item_weightf(p->first);
} else {
util = (double)p->second.kb_used / (double)p->second.kb;
}
if (util >= overload_util) {
sep = ", ";
// Assign a lower weight to overloaded OSDs. The current weight
// is a factor to take into account the original weights,
// to represent e.g. differing storage capacities
unsigned weight = osdmap.get_weight(p->first);
unsigned new_weight = (unsigned)((average_util / util) * (float)weight);
pending_inc.new_weight[p->first] = new_weight;
char buf[128];
snprintf(buf, sizeof(buf), "osd.%d [%04f -> %04f]", p->first,
(float)weight / (float)0x10000,
(float)new_weight / (float)0x10000);
oss << buf << sep;
changed = true;
}
if (util <= underload_util) {
// assign a higher weight.. if we can.
unsigned weight = osdmap.get_weight(p->first);
unsigned new_weight = (unsigned)((average_util / util) * (float)weight);
if (new_weight > 0x10000)
new_weight = 0x10000;
if (new_weight > weight) {
sep = ", ";
pending_inc.new_weight[p->first] = new_weight;
char buf[128];
snprintf(buf, sizeof(buf), "osd.%d [%04f -> %04f]", p->first,
(float)weight / (float)0x10000,
(float)new_weight / (float)0x10000);
oss << buf << sep;
changed = true;
}
}
}
if (sep.empty()) {
oss << "(none)";
}
out_str = oss.str();
dout(10) << "reweight_by_utilization: finished with " << out_str << dendl;
return changed;
}

template <typename F>
class OSDUtilizationDumper : public CrushTreeDumper::Dumper<F> {
public:
typedef CrushTreeDumper::Dumper<F> Parent;

OSDUtilizationDumper(const CrushWrapper *crush, const OSDMap *osdmap_,
const PGMap *pgm_, bool tree_) :
Parent(crush),
osdmap(osdmap_),
pgm(pgm_),
tree(tree_),
average_util(0),
min_var(-1),
max_var(-1),
stddev(0),
sum(0) {
if (pgm->osd_sum.kb)
average_util = 100.0 * (double)pgm->osd_sum.kb_used / (double)pgm->osd_sum.kb;
}

protected:
void dump_stray(F *f) {
for (int i = 0; i <= osdmap->get_max_osd(); i++) {
if (osdmap->exists(i) && !this->is_touched(i))
dump_item(CrushTreeDumper::Item(i, 0, 0), f);
}
}

virtual void dump_item(const CrushTreeDumper::Item &qi, F *f) {
if (!tree && qi.is_bucket())
return;

float reweight = qi.is_bucket() ? -1 : osdmap->get_weightf(qi.id);
int64_t kb = 0, kb_used = 0, kb_avail = 0;
double util = 0;
if (get_bucket_utilization(qi.id, kb, kb_used, kb_avail) && kb > 0)
util = 100.0 * (double)kb_used / (double)kb;
double var = 1.0;
if (average_util)
var = util / average_util;

dump_item(qi, reweight, kb, kb_used, kb_avail, util, var, f);

if (!qi.is_bucket()) {
if (min_var < 0 || var < min_var) min_var = var;
if (max_var < 0 || var > max_var) max_var = var;

double dev = util - average_util;
dev *= dev;
stddev += reweight * dev;
sum += reweight;
}
}

virtual void dump_item(const CrushTreeDumper::Item &qi, float &reweight,
int64_t kb, int64_t kb_used, int64_t kb_avail,
double& util, double& var, F *f) = 0;

double dev() {
return sum > 0 ? sqrt(stddev / sum) : 0;
}

bool get_bucket_utilization(int id, int64_t& kb, int64_t& kb_used,
int64_t& kb_avail) const {
if (id >= 0) {
typedef ceph::unordered_map<int32_t,osd_stat_t> OsdStat;

OsdStat::const_iterator p = pgm->osd_stat.find(id);

if (p == pgm->osd_stat.end())
return false;

kb = p->second.kb;
kb_used = p->second.kb_used;
kb_avail = p->second.kb_avail;
return kb > 0;
}

kb = 0;
kb_used = 0;
kb_avail = 0;

for (int k = osdmap->crush->get_bucket_size(id) - 1; k >= 0; k--) {
int item = osdmap->crush->get_bucket_item(id, k);
int64_t kb_i = 0, kb_used_i = 0, kb_avail_i;
if (!get_bucket_utilization(item, kb_i, kb_used_i, kb_avail_i))
return false;
kb += kb_i;
kb_used += kb_used_i;
kb_avail += kb_avail_i;
}
return kb > 0;
}

protected:
const OSDMap *osdmap;
const PGMap *pgm;
bool tree;
double average_util;
double min_var;
double max_var;
double stddev;
double sum;
};

class OSDUtilizationPlainDumper : public OSDUtilizationDumper<TextTable> {
public:
typedef OSDUtilizationDumper<TextTable> Parent;

OSDUtilizationPlainDumper(const CrushWrapper *crush, const OSDMap *osdmap,
const PGMap *pgm, bool tree) :
Parent(crush, osdmap, pgm, tree) {}

void dump(TextTable *tbl) {
tbl->define_column("ID", TextTable::LEFT, TextTable::RIGHT);
tbl->define_column("WEIGHT", TextTable::LEFT, TextTable::RIGHT);
tbl->define_column("REWEIGHT", TextTable::LEFT, TextTable::RIGHT);
tbl->define_column("SIZE", TextTable::LEFT, TextTable::RIGHT);
tbl->define_column("USE", TextTable::LEFT, TextTable::RIGHT);
tbl->define_column("AVAIL", TextTable::LEFT, TextTable::RIGHT);
tbl->define_column("%USE", TextTable::LEFT, TextTable::RIGHT);
tbl->define_column("VAR", TextTable::LEFT, TextTable::RIGHT);
if (tree)
tbl->define_column("TYPE NAME", TextTable::LEFT, TextTable::LEFT);

Parent::dump(tbl);

dump_stray(tbl);

*tbl << "" << "" << "TOTAL"
<< si_t(pgm->osd_sum.kb)
<< si_t(pgm->osd_sum.kb_used << 10)
<< si_t(pgm->osd_sum.kb_avail << 10)
<< lowprecision_t(average_util)
<< ""
<< TextTable::endrow;
}

protected:
struct lowprecision_t {
float v;
lowprecision_t(float _v) : v(_v) {}
};
friend std::ostream &operator<<(ostream& out, const lowprecision_t& v);

virtual void dump_item(const CrushTreeDumper::Item &qi, float &reweight,
int64_t kb, int64_t kb_used, int64_t kb_avail,
double& util, double& var, TextTable *tbl) {
*tbl << qi.id
<< weightf_t(qi.weight)
<< weightf_t(reweight)
<< si_t(kb << 10)
<< si_t(kb_used << 10)
<< si_t(kb_avail << 10)
<< lowprecision_t(util)
<< lowprecision_t(var);

if (tree) {
ostringstream name;
for (int k = 0; k < qi.depth; k++)
name << " ";
if (qi.is_bucket()) {
int type = crush->get_bucket_type(qi.id);
name << crush->get_type_name(type) << " "
<< crush->get_item_name(qi.id);
} else {
name << "osd." << qi.id;
}
*tbl << name.str();
}

*tbl << TextTable::endrow;
}

public:
string summary() {
ostringstream out;
out << "MIN/MAX VAR: " << lowprecision_t(min_var)
<< "/" << lowprecision_t(max_var) << " "
<< "STDDEV: " << lowprecision_t(dev());
return out.str();
}
};

ostream& operator<<(ostream& out,
const OSDUtilizationPlainDumper::lowprecision_t& v)
{
if (v.v < -0.01) {
return out << "-";
} else if (v.v < 0.001) {
return out << "0";
} else {
std::streamsize p = out.precision();
return out << std::fixed << std::setprecision(2) << v.v << std::setprecision(p);
}
}

class OSDUtilizationFormatDumper : public OSDUtilizationDumper<Formatter> {
public:
typedef OSDUtilizationDumper<Formatter> Parent;

OSDUtilizationFormatDumper(const CrushWrapper *crush, const OSDMap *osdmap,
const PGMap *pgm, bool tree) :
Parent(crush, osdmap, pgm, tree) {}

void dump(Formatter *f) {
f->open_array_section("nodes");
Parent::dump(f);
f->close_section();

f->open_array_section("stray");
dump_stray(f);
f->close_section();
}

protected:
virtual void dump_item(const CrushTreeDumper::Item &qi, float &reweight,
int64_t kb, int64_t kb_used, int64_t kb_avail,
double& util, double& var, Formatter *f) {
f->open_object_section("item");
CrushTreeDumper::dump_item_fields(crush, qi, f);
f->dump_float("reweight", reweight);
f->dump_int("kb", kb);
f->dump_int("kb_used", kb_used);
f->dump_int("kb_avail", kb_avail);
f->dump_float("utilization", util);
f->dump_float("var", var);
CrushTreeDumper::dump_bucket_children(crush, qi, f);
f->close_section();
}

public:
void summary(Formatter *f) {
f->open_object_section("summary");
f->dump_int("total_kb", pgm->osd_sum.kb);
f->dump_int("total_kb_used", pgm->osd_sum.kb_used);
f->dump_int("total_kb_avail", pgm->osd_sum.kb_avail);
f->dump_float("average_utilization", average_util);
f->dump_float("min_var", min_var);
f->dump_float("max_var", max_var);
f->dump_float("dev", dev());
f->close_section();
}
};

void OSDMonitor::print_utilization(ostream &out, Formatter *f, bool tree) const
{
const PGMap *pgm = &mon->pgmon()->pg_map;
const CrushWrapper *crush = osdmap.crush.get();

if (f) {
f->open_object_section("df");
OSDUtilizationFormatDumper d(crush, &osdmap, pgm, tree);
d.dump(f);
d.summary(f);
f->close_section();
f->flush(out);
} else {
OSDUtilizationPlainDumper d(crush, &osdmap, pgm, tree);
TextTable tbl;
d.dump(&tbl);
out << tbl
<< d.summary() << "\n";
}
}

void OSDMonitor::create_pending()
{
pending_inc = OSDMap::Incremental(osdmap.epoch+1);
pending_inc.fsid = mon->monmap->fsid;
dout(10) << "create_pending e " << pending_inc.epoch << dendl;

// drop any redundant pg_temp entries
OSDMap::remove_redundant_temporaries(g_ceph_context, osdmap, &pending_inc);

// drop any pg or primary_temp entries with no up entries
OSDMap::remove_down_temps(g_ceph_context, osdmap, &pending_inc);
}

/**
* @note receiving a transaction in this function gives a fair amount of
* freedom to the service implementation if it does need it. It shouldn't.
*/
void OSDMonitor::encode_pending(MonitorDBStore::TransactionRef t)
{
dout(10) << "encode_pending e " << pending_inc.epoch
<< dendl;
// finalize up pending_inc
pending_inc.modified = ceph_clock_now(g_ceph_context);

int r = pending_inc.propagate_snaps_to_tiers(g_ceph_context, osdmap);
assert(r == 0);

bufferlist bl;

// tell me about it
for (map<int32_t,uint8_t>::iterator i = pending_inc.new_state.begin();
i != pending_inc.new_state.end();
++i) {
int s = i->second ? i->second : CEPH_OSD_UP;
if (s & CEPH_OSD_UP)
dout(2) << " osd." << i->first << " DOWN" << dendl;
if (s & CEPH_OSD_EXISTS)
dout(2) << " osd." << i->first << " DNE" << dendl;
}
for (map<int32_t,entity_addr_t>::iterator i = pending_inc.new_up_client.begin();
i != pending_inc.new_up_client.end();
++i) {
//FIXME: insert cluster addresses too
dout(2) << " osd." << i->first << " UP " << i->second << dendl;
}
for (map<int32_t,uint32_t>::iterator i = pending_inc.new_weight.begin();
i != pending_inc.new_weight.end();
++i) {
if (i->second == CEPH_OSD_OUT) {
dout(2) << " osd." << i->first << " OUT" << dendl;
} else if (i->second == CEPH_OSD_IN) {
dout(2) << " osd." << i->first << " IN" << dendl;
} else {
dout(2) << " osd." << i->first << " WEIGHT " << hex << i->second << dec << dendl;
}
}

// encode full map and determine its crc
OSDMap tmp;
{
tmp.deepish_copy_from(osdmap);
tmp.apply_incremental(pending_inc);
bufferlist fullbl;
::encode(tmp, fullbl, mon->quorum_features | CEPH_FEATURE_RESERVED);
pending_inc.full_crc = tmp.get_crc();

// include full map in the txn. note that old monitors will
// overwrite this. new ones will now skip the local full map
// encode and reload from this.
put_version_full(t, pending_inc.epoch, fullbl);
}

// encode
assert(get_last_committed() + 1 == pending_inc.epoch);
::encode(pending_inc, bl, mon->quorum_features | CEPH_FEATURE_RESERVED);

dout(20) << " full_crc " << tmp.get_crc()
<< " inc_crc " << pending_inc.inc_crc << dendl;

/* put everything in the transaction */
put_version(t, pending_inc.epoch, bl);
put_last_committed(t, pending_inc.epoch);

// metadata, too!
for (map<int,bufferlist>::iterator p = pending_metadata.begin();
p != pending_metadata.end();
++p)
t->put(OSD_METADATA_PREFIX, stringify(p->first), p->second);
for (set<int>::iterator p = pending_metadata_rm.begin();
p != pending_metadata_rm.end();
++p)
t->erase(OSD_METADATA_PREFIX, stringify(*p));
pending_metadata.clear();
pending_metadata_rm.clear();
}

int OSDMonitor::dump_osd_metadata(int osd, Formatter *f, ostream *err)
{
bufferlist bl;
int r = mon->store->get(OSD_METADATA_PREFIX, stringify(osd), bl);
if (r < 0)
return r;
map<string,string> m;
try {
bufferlist::iterator p = bl.begin();
::decode(m, p);
}
catch (buffer::error& e) {
if (err)
*err << "osd." << osd << " metadata is corrupt";
return -EIO;
}
for (map<string,string>::iterator p = m.begin(); p != m.end(); ++p)
f->dump_string(p->first.c_str(), p->second);
return 0;
}

void OSDMonitor::share_map_with_random_osd()
{
if (osdmap.get_num_up_osds() == 0) {
dout(10) << __func__ << " no up osds, don't share with anyone" << dendl;
return;
}

MonSession *s = mon->session_map.get_random_osd_session(&osdmap);
if (!s) {
dout(10) << __func__ << " no up osd on our session map" << dendl;
return;
}

dout(10) << "committed, telling random " << s->inst << " all about it" << dendl;
// whatev, they'll request more if they need it
MOSDMap *m = build_incremental(osdmap.get_epoch() - 1, osdmap.get_epoch());
s->con->send_message(m);
// NOTE: do *not* record osd has up to this epoch (as we do
// elsewhere) as they may still need to request older values.
}

version_t OSDMonitor::get_trim_to()
{
if (mon->pgmon()->is_readable() &&
mon->pgmon()->pg_map.creating_pgs.empty()) {
epoch_t floor = mon->pgmon()->pg_map.get_min_last_epoch_clean();
dout(10) << " min_last_epoch_clean " << floor << dendl;
if (g_conf->mon_osd_force_trim_to > 0 &&
g_conf->mon_osd_force_trim_to < (int)get_last_committed()) {
floor = g_conf->mon_osd_force_trim_to;
dout(10) << " explicit mon_osd_force_trim_to = " << floor << dendl;
}
unsigned min = g_conf->mon_min_osdmap_epochs;
if (floor + min > get_last_committed()) {
if (min < get_last_committed())
floor = get_last_committed() - min;
else
floor = 0;
}
if (floor > get_first_committed())
return floor;
}
return 0;
}

void OSDMonitor::encode_trim_extra(MonitorDBStore::TransactionRef tx,
version_t first)
{
dout(10) << __func__ << " including full map for e " << first << dendl;
bufferlist bl;
get_version_full(first, bl);
put_version_full(tx, first, bl);
}

// -------------

bool OSDMonitor::preprocess_query(PaxosServiceMessage *m)
{
dout(10) << "preprocess_query " << *m << " from " << m->get_orig_source_inst() << dendl;

switch (m->get_type()) {
// READs
case MSG_MON_COMMAND:
return preprocess_command(static_cast<MMonCommand*>(m));
case CEPH_MSG_MON_GET_OSDMAP:
return preprocess_get_osdmap(static_cast<MMonGetOSDMap*>(m));

// damp updates
case MSG_OSD_MARK_ME_DOWN:
return preprocess_mark_me_down(static_cast<MOSDMarkMeDown*>(m));
case MSG_OSD_FAILURE:
return preprocess_failure(static_cast<MOSDFailure*>(m));
case MSG_OSD_BOOT:
return preprocess_boot(static_cast<MOSDBoot*>(m));
case MSG_OSD_ALIVE:
return preprocess_alive(static_cast<MOSDAlive*>(m));
case MSG_OSD_PGTEMP:
return preprocess_pgtemp(static_cast<MOSDPGTemp*>(m));

case CEPH_MSG_POOLOP:
return preprocess_pool_op(static_cast<MPoolOp*>(m));

case MSG_REMOVE_SNAPS:
return preprocess_remove_snaps(static_cast<MRemoveSnaps*>(m));
default:
assert(0);
m->put();
return true;
}
}

bool OSDMonitor::prepare_update(PaxosServiceMessage *m)
{
dout(7) << "prepare_update " << *m << " from " << m->get_orig_source_inst() << dendl;
switch (m->get_type()) {
// damp updates
case MSG_OSD_MARK_ME_DOWN:
return prepare_mark_me_down(static_cast<MOSDMarkMeDown*>(m));
case MSG_OSD_FAILURE:
return prepare_failure(static_cast<MOSDFailure*>(m));
case MSG_OSD_BOOT:
return prepare_boot(static_cast<MOSDBoot*>(m));
case MSG_OSD_ALIVE:
return prepare_alive(static_cast<MOSDAlive*>(m));
case MSG_OSD_PGTEMP:
return prepare_pgtemp(static_cast<MOSDPGTemp*>(m));

case MSG_MON_COMMAND:
return prepare_command(static_cast<MMonCommand*>(m));
case CEPH_MSG_POOLOP:
return prepare_pool_op(static_cast<MPoolOp*>(m));

case MSG_REMOVE_SNAPS:
return prepare_remove_snaps(static_cast<MRemoveSnaps*>(m));

default:
assert(0);
m->put();
}

return false;
}

bool OSDMonitor::should_propose(double& delay)
{
dout(10) << "should_propose" << dendl;

// if full map, propose immediately! any subsequent changes will be clobbered.
if (pending_inc.fullmap.length())
return true;

// adjust osd weights?
if (!osd_weight.empty() &&
osd_weight.size() == (unsigned)osdmap.get_max_osd()) {
dout(0) << " adjusting osd weights based on " << osd_weight << dendl;
osdmap.adjust_osd_weights(osd_weight, pending_inc);
delay = 0.0;
osd_weight.clear();
return true;
}

return PaxosService::should_propose(delay);
}



// ---------------------------
// READs

bool OSDMonitor::preprocess_get_osdmap(MMonGetOSDMap *m)
{
dout(10) << __func__ << " " << *m << dendl;
MOSDMap *reply = new MOSDMap(mon->monmap->fsid);
epoch_t first = get_first_committed();
epoch_t last = osdmap.get_epoch();
int max = g_conf->osd_map_message_max;
for (epoch_t e = MAX(first, m->get_full_first());
e < MIN(last, m->get_full_last()) && max > 0;
++e, --max) {
int r = get_version_full(e, reply->maps[e]);
assert(r >= 0);
}
for (epoch_t e = MAX(first, m->get_inc_first());
e < MIN(last, m->get_inc_last()) && max > 0;
++e, --max) {
int r = get_version(e, reply->incremental_maps[e]);
assert(r >= 0);
}
reply->oldest_map = get_first_committed();
reply->newest_map = osdmap.get_epoch();
mon->send_reply(m, reply);
m->put();
return true;
}


// ---------------------------
// UPDATEs

// failure --

bool OSDMonitor::check_source(PaxosServiceMessage *m, uuid_d fsid) {
// check permissions
MonSession *session = m->get_session();
if (!session)
return true;
if (!session->is_capable("osd", MON_CAP_X)) {
dout(0) << "got MOSDFailure from entity with insufficient caps "
<< session->caps << dendl;
return true;
}
if (fsid != mon->monmap->fsid) {
dout(0) << "check_source: on fsid " << fsid
<< " != " << mon->monmap->fsid << dendl;
return true;
}
return false;
}


bool OSDMonitor::preprocess_failure(MOSDFailure *m)
{
// who is target_osd
int badboy = m->get_target().name.num();

// check permissions
if (check_source(m, m->fsid))
goto didit;

// first, verify the reporting host is valid
if (m->get_orig_source().is_osd()) {
int from = m->get_orig_source().num();
if (!osdmap.exists(from) ||
osdmap.get_addr(from) != m->get_orig_source_inst().addr ||
osdmap.is_down(from)) {
dout(5) << "preprocess_failure from dead osd." << from << ", ignoring" << dendl;
send_incremental(m, m->get_epoch()+1);
goto didit;
}
}

// weird?
if (!osdmap.have_inst(badboy)) {
dout(5) << "preprocess_failure dne(/dup?): " << m->get_target() << ", from " << m->get_orig_source_inst() << dendl;
if (m->get_epoch() < osdmap.get_epoch())
send_incremental(m, m->get_epoch()+1);
goto didit;
}
if (osdmap.get_inst(badboy) != m->get_target()) {
dout(5) << "preprocess_failure wrong osd: report " << m->get_target() << " != map's " << osdmap.get_inst(badboy)
<< ", from " << m->get_orig_source_inst() << dendl;
if (m->get_epoch() < osdmap.get_epoch())
send_incremental(m, m->get_epoch()+1);
goto didit;
}

// already reported?
if (osdmap.is_down(badboy) ||
osdmap.get_up_from(badboy) > m->get_epoch()) {
dout(5) << "preprocess_failure dup/old: " << m->get_target() << ", from " << m->get_orig_source_inst() << dendl;
if (m->get_epoch() < osdmap.get_epoch())
send_incremental(m, m->get_epoch()+1);
goto didit;
}

if (!can_mark_down(badboy)) {
dout(5) << "preprocess_failure ignoring report of " << m->get_target() << " from " << m->get_orig_source_inst() << dendl;
goto didit;
}

dout(10) << "preprocess_failure new: " << m->get_target() << ", from " << m->get_orig_source_inst() << dendl;
return false;

didit:
m->put();
return true;
}

class C_AckMarkedDown : public Context {
OSDMonitor *osdmon;
MOSDMarkMeDown *m;
public:
C_AckMarkedDown(
OSDMonitor *osdmon,
MOSDMarkMeDown *m)
: osdmon(osdmon), m(m) {}

void finish(int) {
osdmon->mon->send_reply(
m,
new MOSDMarkMeDown(
m->fsid,
m->get_target(),
m->get_epoch(),
false)); // ACK itself does not request an ack
}
~C_AckMarkedDown() {
m->put();
}
};

bool OSDMonitor::preprocess_mark_me_down(MOSDMarkMeDown *m)
{
int requesting_down = m->get_target().name.num();
int from = m->get_orig_source().num();

// check permissions
if (check_source(m, m->fsid))
goto reply;

// first, verify the reporting host is valid
if (!m->get_orig_source().is_osd())
goto reply;

if (!osdmap.exists(from) ||
osdmap.is_down(from) ||
osdmap.get_addr(from) != m->get_target().addr) {
dout(5) << "preprocess_mark_me_down from dead osd."
<< from << ", ignoring" << dendl;
send_incremental(m, m->get_epoch()+1);
goto reply;
}

// no down might be set
if (!can_mark_down(requesting_down))
goto reply;

dout(10) << "MOSDMarkMeDown for: " << m->get_target() << dendl;
return false;

reply:
if (m->request_ack) {
Context *c(new C_AckMarkedDown(this, m));
c->complete(0);
}
return true;
}

bool OSDMonitor::prepare_mark_me_down(MOSDMarkMeDown *m)
{
int target_osd = m->get_target().name.num();

assert(osdmap.is_up(target_osd));
assert(osdmap.get_addr(target_osd) == m->get_target().addr);

mon->clog->info() << "osd." << target_osd << " marked itself down\n";
pending_inc.new_state[target_osd] = CEPH_OSD_UP;
if (m->request_ack)
wait_for_finished_proposal(new C_AckMarkedDown(this, m));
return true;
}

bool OSDMonitor::can_mark_down(int i)
{
if (osdmap.test_flag(CEPH_OSDMAP_NODOWN)) {
dout(5) << "can_mark_down NODOWN flag set, will not mark osd." << i << " down" << dendl;
return false;
}
int num_osds = osdmap.get_num_osds();
if (num_osds == 0) {
dout(5) << "can_mark_down no osds" << dendl;
return false;
}
int up = osdmap.get_num_up_osds() - pending_inc.get_net_marked_down(&osdmap);
float up_ratio = (float)up / (float)num_osds;
if (up_ratio < g_conf->mon_osd_min_up_ratio) {
dout(5) << "can_mark_down current up_ratio " << up_ratio << " < min "
<< g_conf->mon_osd_min_up_ratio
<< ", will not mark osd." << i << " down" << dendl;
return false;
}
return true;
}

bool OSDMonitor::can_mark_up(int i)
{
if (osdmap.test_flag(CEPH_OSDMAP_NOUP)) {
dout(5) << "can_mark_up NOUP flag set, will not mark osd." << i << " up" << dendl;
return false;
}
return true;
}

/**
* @note the parameter @p i apparently only exists here so we can output the
* osd's id on messages.
*/
bool OSDMonitor::can_mark_out(int i)
{
if (osdmap.test_flag(CEPH_OSDMAP_NOOUT)) {
dout(5) << "can_mark_out NOOUT flag set, will not mark osds out" << dendl;
return false;
}
int num_osds = osdmap.get_num_osds();
if (num_osds == 0) {
dout(5) << "can_mark_out no osds" << dendl;
return false;
}
int in = osdmap.get_num_in_osds() - pending_inc.get_net_marked_out(&osdmap);
float in_ratio = (float)in / (float)num_osds;
if (in_ratio < g_conf->mon_osd_min_in_ratio) {
if (i >= 0)
dout(5) << "can_mark_down current in_ratio " << in_ratio << " < min "
<< g_conf->mon_osd_min_in_ratio
<< ", will not mark osd." << i << " out" << dendl;
else
dout(5) << "can_mark_down current in_ratio " << in_ratio << " < min "
<< g_conf->mon_osd_min_in_ratio
<< ", will not mark osds out" << dendl;
return false;
}

return true;
}

bool OSDMonitor::can_mark_in(int i)
{
if (osdmap.test_flag(CEPH_OSDMAP_NOIN)) {
dout(5) << "can_mark_in NOIN flag set, will not mark osd." << i << " in" << dendl;
return false;
}
return true;
}

void OSDMonitor::check_failures(utime_t now)
{
for (map<int,failure_info_t>::iterator p = failure_info.begin();
p != failure_info.end();
++p) {
check_failure(now, p->first, p->second);
}
}

bool OSDMonitor::check_failure(utime_t now, int target_osd, failure_info_t& fi)
{
utime_t orig_grace(g_conf->osd_heartbeat_grace, 0);
utime_t max_failed_since = fi.get_failed_since();
utime_t failed_for = now - max_failed_since;

utime_t grace = orig_grace;
double my_grace = 0, peer_grace = 0;
if (g_conf->mon_osd_adjust_heartbeat_grace) {
double halflife = (double)g_conf->mon_osd_laggy_halflife;
double decay_k = ::log(.5) / halflife;

// scale grace period based on historical probability of 'lagginess'
// (false positive failures due to slowness).
const osd_xinfo_t& xi = osdmap.get_xinfo(target_osd);
double decay = exp((double)failed_for * decay_k);
dout(20) << " halflife " << halflife << " decay_k " << decay_k
<< " failed_for " << failed_for << " decay " << decay << dendl;
my_grace = decay * (double)xi.laggy_interval * xi.laggy_probability;
grace += my_grace;

// consider the peers reporting a failure a proxy for a potential
// 'subcluster' over the overall cluster that is similarly
// laggy. this is clearly not true in all cases, but will sometimes
// help us localize the grace correction to a subset of the system
// (say, a rack with a bad switch) that is unhappy.
assert(fi.reporters.size());
for (map<int,failure_reporter_t>::iterator p = fi.reporters.begin();
p != fi.reporters.end();
++p) {
const osd_xinfo_t& xi = osdmap.get_xinfo(p->first);
utime_t elapsed = now - xi.down_stamp;
double decay = exp((double)elapsed * decay_k);
peer_grace += decay * (double)xi.laggy_interval * xi.laggy_probability;
}
peer_grace /= (double)fi.reporters.size();
grace += peer_grace;
}

dout(10) << " osd." << target_osd << " has "
<< fi.reporters.size() << " reporters and "
<< fi.num_reports << " reports, "
<< grace << " grace (" << orig_grace << " + " << my_grace << " + " << peer_grace << "), max_failed_since " << max_failed_since
<< dendl;

// already pending failure?
if (pending_inc.new_state.count(target_osd) &&
pending_inc.new_state[target_osd] & CEPH_OSD_UP) {
dout(10) << " already pending failure" << dendl;
return true;
}

if (failed_for >= grace &&
((int)fi.reporters.size() >= g_conf->mon_osd_min_down_reporters) &&
(fi.num_reports >= g_conf->mon_osd_min_down_reports)) {
dout(1) << " we have enough reports/reporters to mark osd." << target_osd << " down" << dendl;
pending_inc.new_state[target_osd] = CEPH_OSD_UP;

mon->clog->info() << osdmap.get_inst(target_osd) << " failed ("
<< fi.num_reports << " reports from " << (int)fi.reporters.size() << " peers after "
<< failed_for << " >= grace " << grace << ")\n";
return true;
}
return false;
}

bool OSDMonitor::prepare_failure(MOSDFailure *m)
{
dout(1) << "prepare_failure " << m->get_target() << " from " << m->get_orig_source_inst()
<< " is reporting failure:" << m->if_osd_failed() << dendl;

int target_osd = m->get_target().name.num();
int reporter = m->get_orig_source().num();
assert(osdmap.is_up(target_osd));
assert(osdmap.get_addr(target_osd) == m->get_target().addr);

// calculate failure time
utime_t now = ceph_clock_now(g_ceph_context);
utime_t failed_since = m->get_recv_stamp() - utime_t(m->failed_for ? m->failed_for : g_conf->osd_heartbeat_grace, 0);
if (m->if_osd_failed()) {
// add a report
mon->clog->debug() << m->get_target() << " reported failed by "
<< m->get_orig_source_inst() << "\n";
failure_info_t& fi = failure_info[target_osd];
MOSDFailure *old = fi.add_report(reporter, failed_since, m);
if (old) {
mon->no_reply(old);
old->put();
}

return check_failure(now, target_osd, fi);
} else {
// remove the report
mon->clog->debug() << m->get_target() << " failure report canceled by "
<< m->get_orig_source_inst() << "\n";
if (failure_info.count(target_osd)) {
failure_info_t& fi = failure_info[target_osd];
list<MOSDFailure*> ls;
fi.take_report_messages(ls);
fi.cancel_report(reporter);
while (!ls.empty()) {
mon->no_reply(ls.front());
ls.front()->put();
ls.pop_front();
}
if (fi.reporters.empty()) {
dout(10) << " removing last failure_info for osd." << target_osd << dendl;
failure_info.erase(target_osd);
} else {
dout(10) << " failure_info for osd." << target_osd << " now "
<< fi.reporters.size() << " reporters and "
<< fi.num_reports << " reports" << dendl;
}
} else {
dout(10) << " no failure_info for osd." << target_osd << dendl;
}
mon->no_reply(m);
m->put();
}
return false;
}

void OSDMonitor::process_failures()
{
map<int,failure_info_t>::iterator p = failure_info.begin();
while (p != failure_info.end()) {
if (osdmap.is_up(p->first)) {
++p;
} else {
dout(10) << "process_failures osd." << p->first << dendl;
list<MOSDFailure*> ls;
p->second.take_report_messages(ls);
failure_info.erase(p++);

while (!ls.empty()) {
send_latest(ls.front(), ls.front()->get_epoch());
ls.pop_front();
}
}
}
}

void OSDMonitor::take_all_failures(list<MOSDFailure*>& ls)
{
dout(10) << __func__ << " on " << failure_info.size() << " osds" << dendl;

for (map<int,failure_info_t>::iterator p = failure_info.begin();
p != failure_info.end();
++p) {
p->second.take_report_messages(ls);
}
failure_info.clear();
}


// boot --

bool OSDMonitor::preprocess_boot(MOSDBoot *m)
{
int from = m->get_orig_source_inst().name.num();

// check permissions, ignore if failed (no response expected)
MonSession *session = m->get_session();
if (!session)
goto ignore;
if (!session->is_capable("osd", MON_CAP_X)) {
dout(0) << "got preprocess_boot message from entity with insufficient caps"
<< session->caps << dendl;
goto ignore;
}

if (m->sb.cluster_fsid != mon->monmap->fsid) {
dout(0) << "preprocess_boot on fsid " << m->sb.cluster_fsid
<< " != " << mon->monmap->fsid << dendl;
goto ignore;
}

if (m->get_orig_source_inst().addr.is_blank_ip()) {
dout(0) << "preprocess_boot got blank addr for " << m->get_orig_source_inst() << dendl;
goto ignore;
}

assert(m->get_orig_source_inst().name.is_osd());

// check if osd has required features to boot
if ((osdmap.get_features(CEPH_ENTITY_TYPE_OSD, NULL) &
CEPH_FEATURE_OSD_ERASURE_CODES) &&
!(m->get_connection()->get_features() & CEPH_FEATURE_OSD_ERASURE_CODES)) {
dout(0) << __func__ << " osdmap requires erasure code but osd at "
<< m->get_orig_source_inst()
<< " doesn't announce support -- ignore" << dendl;
goto ignore;
}

if ((osdmap.get_features(CEPH_ENTITY_TYPE_OSD, NULL) &
CEPH_FEATURE_ERASURE_CODE_PLUGINS_V2) &&
!(m->get_connection()->get_features() & CEPH_FEATURE_ERASURE_CODE_PLUGINS_V2)) {
dout(0) << __func__ << " osdmap requires erasure code plugins v2 but osd at "
<< m->get_orig_source_inst()
<< " doesn't announce support -- ignore" << dendl;
goto ignore;
}
// already booted?
if (osdmap.is_up(from) &&
osdmap.get_inst(from) == m->get_orig_source_inst()) {
// yup.
dout(7) << "preprocess_boot dup from " << m->get_orig_source_inst()
<< " == " << osdmap.get_inst(from) << dendl;
_booted(m, false);
return true;
}

if (osdmap.exists(from) &&
!osdmap.get_uuid(from).is_zero() &&
osdmap.get_uuid(from) != m->sb.osd_fsid) {
dout(7) << __func__ << " from " << m->get_orig_source_inst()
<< " clashes with existing osd: different fsid"
<< " (ours: " << osdmap.get_uuid(from)
<< " ; theirs: " << m->sb.osd_fsid << ")" << dendl;
goto ignore;
}

if (osdmap.exists(from) &&
osdmap.get_info(from).up_from > m->version) {
dout(7) << "prepare_boot msg from before last up_from, ignoring" << dendl;
send_latest(m, m->sb.current_epoch+1);
return true;
}

// noup?
if (!can_mark_up(from)) {
dout(7) << "preprocess_boot ignoring boot from " << m->get_orig_source_inst() << dendl;
send_latest(m, m->sb.current_epoch+1);
return true;
}

dout(10) << "preprocess_boot from " << m->get_orig_source_inst() << dendl;
return false;

ignore:
m->put();
return true;
}

bool OSDMonitor::prepare_boot(MOSDBoot *m)
{
dout(7) << "prepare_boot from " << m->get_orig_source_inst() << " sb " << m->sb
<< " cluster_addr " << m->cluster_addr
<< " hb_back_addr " << m->hb_back_addr
<< " hb_front_addr " << m->hb_front_addr
<< dendl;

assert(m->get_orig_source().is_osd());
int from = m->get_orig_source().num();

// does this osd exist?
if (from >= osdmap.get_max_osd()) {
dout(1) << "boot from osd." << from << " >= max_osd " << osdmap.get_max_osd() << dendl;
m->put();
return false;
}

int oldstate = osdmap.exists(from) ? osdmap.get_state(from) : CEPH_OSD_NEW;
if (pending_inc.new_state.count(from))
oldstate ^= pending_inc.new_state[from];

// already up? mark down first?
if (osdmap.is_up(from)) {
dout(7) << "prepare_boot was up, first marking down " << osdmap.get_inst(from) << dendl;
// preprocess should have caught these; if not, assert.
assert(osdmap.get_inst(from) != m->get_orig_source_inst());
assert(osdmap.get_uuid(from) == m->sb.osd_fsid);
if (pending_inc.new_state.count(from) == 0 ||
(pending_inc.new_state[from] & CEPH_OSD_UP) == 0) {
// mark previous guy down
pending_inc.new_state[from] = CEPH_OSD_UP;
}
wait_for_finished_proposal(new C_RetryMessage(this, m));
} else if (pending_inc.new_up_client.count(from)) { //FIXME: should this be using new_up_client?
// already prepared, just wait
dout(7) << "prepare_boot already prepared, waiting on " << m->get_orig_source_addr() << dendl;
wait_for_finished_proposal(new C_RetryMessage(this, m));
} else {
// mark new guy up.
pending_inc.new_up_client[from] = m->get_orig_source_addr();
if (!m->cluster_addr.is_blank_ip())
pending_inc.new_up_cluster[from] = m->cluster_addr;
pending_inc.new_hb_back_up[from] = m->hb_back_addr;
if (!m->hb_front_addr.is_blank_ip())
pending_inc.new_hb_front_up[from] = m->hb_front_addr;

// mark in?
if ((g_conf->mon_osd_auto_mark_auto_out_in && (oldstate & CEPH_OSD_AUTOOUT)) ||
(g_conf->mon_osd_auto_mark_new_in && (oldstate & CEPH_OSD_NEW)) ||
(g_conf->mon_osd_auto_mark_in)) {
if (can_mark_in(from)) {
if (osdmap.osd_xinfo[from].old_weight > 0)
pending_inc.new_weight[from] = osdmap.osd_xinfo[from].old_weight;
else
pending_inc.new_weight[from] = CEPH_OSD_IN;
} else {
dout(7) << "prepare_boot NOIN set, will not mark in " << m->get_orig_source_addr() << dendl;
}
}

down_pending_out.erase(from); // if any

if (m->sb.weight)
osd_weight[from] = m->sb.weight;

// set uuid?
dout(10) << " setting osd." << from << " uuid to " << m->sb.osd_fsid << dendl;
if (!osdmap.exists(from) || osdmap.get_uuid(from) != m->sb.osd_fsid) {
// preprocess should have caught this; if not, assert.
assert(!osdmap.exists(from) || osdmap.get_uuid(from).is_zero());
pending_inc.new_uuid[from] = m->sb.osd_fsid;
}

// fresh osd?
if (m->sb.newest_map == 0 && osdmap.exists(from)) {
const osd_info_t& i = osdmap.get_info(from);
if (i.up_from > i.lost_at) {
dout(10) << " fresh osd; marking lost_at too" << dendl;
pending_inc.new_lost[from] = osdmap.get_epoch();
}
}

// metadata
bufferlist osd_metadata;
::encode(m->metadata, osd_metadata);
pending_metadata[from] = osd_metadata;

// adjust last clean unmount epoch?
const osd_info_t& info = osdmap.get_info(from);
dout(10) << " old osd_info: " << info << dendl;
if (m->sb.mounted > info.last_clean_begin ||
(m->sb.mounted == info.last_clean_begin &&
m->sb.clean_thru > info.last_clean_end)) {
epoch_t begin = m->sb.mounted;
epoch_t end = m->sb.clean_thru;

dout(10) << "prepare_boot osd." << from << " last_clean_interval "
<< "[" << info.last_clean_begin << "," << info.last_clean_end << ")"
<< " -> [" << begin << "-" << end << ")"
<< dendl;
pending_inc.new_last_clean_interval[from] = pair<epoch_t,epoch_t>(begin, end);
}

osd_xinfo_t xi = osdmap.get_xinfo(from);
if (m->boot_epoch == 0) {
xi.laggy_probability *= (1.0 - g_conf->mon_osd_laggy_weight);
xi.laggy_interval *= (1.0 - g_conf->mon_osd_laggy_weight);
dout(10) << " not laggy, new xi " << xi << dendl;
} else {
if (xi.down_stamp.sec()) {
int interval = ceph_clock_now(g_ceph_context).sec() - xi.down_stamp.sec();
xi.laggy_interval =
interval * g_conf->mon_osd_laggy_weight +
xi.laggy_interval * (1.0 - g_conf->mon_osd_laggy_weight);
}
xi.laggy_probability =
g_conf->mon_osd_laggy_weight +
xi.laggy_probability * (1.0 - g_conf->mon_osd_laggy_weight);
dout(10) << " laggy, now xi " << xi << dendl;
}

// set features shared by the osd
if (m->osd_features)
xi.features = m->osd_features;
else
xi.features = m->get_connection()->get_features();

pending_inc.new_xinfo[from] = xi;

// wait
wait_for_finished_proposal(new C_Booted(this, m));
}
return true;
}

void OSDMonitor::_booted(MOSDBoot *m, bool logit)
{
dout(7) << "_booted " << m->get_orig_source_inst()
<< " w " << m->sb.weight << " from " << m->sb.current_epoch << dendl;

if (logit) {
mon->clog->info() << m->get_orig_source_inst() << " boot\n";
}

send_latest(m, m->sb.current_epoch+1);
}


// -------------
// alive

bool OSDMonitor::preprocess_alive(MOSDAlive *m)
{
int from = m->get_orig_source().num();

// check permissions, ignore if failed
MonSession *session = m->get_session();
if (!session)
goto ignore;
if (!session->is_capable("osd", MON_CAP_X)) {
dout(0) << "attempt to send MOSDAlive from entity with insufficient privileges:"
<< session->caps << dendl;
goto ignore;
}

if (!osdmap.is_up(from) ||
osdmap.get_inst(from) != m->get_orig_source_inst()) {
dout(7) << "preprocess_alive ignoring alive message from down " << m->get_orig_source_inst() << dendl;
goto ignore;
}

if (osdmap.get_up_thru(from) >= m->want) {
// yup.
dout(7) << "preprocess_alive want up_thru " << m->want << " dup from " << m->get_orig_source_inst() << dendl;
_reply_map(m, m->version);
return true;
}

dout(10) << "preprocess_alive want up_thru " << m->want
<< " from " << m->get_orig_source_inst() << dendl;
return false;

ignore:
m->put();
return true;
}

bool OSDMonitor::prepare_alive(MOSDAlive *m)
{
int from = m->get_orig_source().num();

if (0) { // we probably don't care much about these
mon->clog->debug() << m->get_orig_source_inst() << " alive\n";
}

dout(7) << "prepare_alive want up_thru " << m->want << " have " << m->version
<< " from " << m->get_orig_source_inst() << dendl;
pending_inc.new_up_thru[from] = m->version; // set to the latest map the OSD has
wait_for_finished_proposal(new C_ReplyMap(this, m, m->version));
return true;
}

void OSDMonitor::_reply_map(PaxosServiceMessage *m, epoch_t e)
{
dout(7) << "_reply_map " << e
<< " from " << m->get_orig_source_inst()
<< dendl;
send_latest(m, e);
}

// -------------
// pg_temp changes

bool OSDMonitor::preprocess_pgtemp(MOSDPGTemp *m)
{
dout(10) << "preprocess_pgtemp " << *m << dendl;
vector<int> empty;
int from = m->get_orig_source().num();
size_t ignore_cnt = 0;

// check caps
MonSession *session = m->get_session();
if (!session)
goto ignore;
if (!session->is_capable("osd", MON_CAP_X)) {
dout(0) << "attempt to send MOSDPGTemp from entity with insufficient caps "
<< session->caps << dendl;
goto ignore;
}

if (!osdmap.is_up(from) ||
osdmap.get_inst(from) != m->get_orig_source_inst()) {
dout(7) << "ignoring pgtemp message from down " << m->get_orig_source_inst() << dendl;
goto ignore;
}

for (map<pg_t,vector<int32_t> >::iterator p = m->pg_temp.begin(); p != m->pg_temp.end(); ++p) {
dout(20) << " " << p->first
<< (osdmap.pg_temp->count(p->first) ? (*osdmap.pg_temp)[p->first] : empty)
<< " -> " << p->second << dendl;

// does the pool exist?
if (!osdmap.have_pg_pool(p->first.pool())) {
/*
* 1. If the osdmap does not have the pool, it means the pool has been
* removed in-between the osd sending this message and us handling it.
* 2. If osdmap doesn't have the pool, it is safe to assume the pool does
* not exist in the pending either, as the osds would not send a
* message about a pool they know nothing about (yet).
* 3. However, if the pool does exist in the pending, then it must be a
* new pool, and not relevant to this message (see 1).
*/
dout(10) << __func__ << " ignore " << p->first << " -> " << p->second
<< ": pool has been removed" << dendl;
ignore_cnt++;
continue;
}

// removal?
if (p->second.empty() && (osdmap.pg_temp->count(p->first) ||
osdmap.primary_temp->count(p->first)))
return false;
// change?
// NOTE: we assume that this will clear pg_primary, so consider
// an existing pg_primary field to imply a change
if (p->second.size() && (osdmap.pg_temp->count(p->first) == 0 ||
(*osdmap.pg_temp)[p->first] != p->second ||
osdmap.primary_temp->count(p->first)))
return false;
}

// should we ignore all the pgs?
if (ignore_cnt == m->pg_temp.size())
goto ignore;

dout(7) << "preprocess_pgtemp e" << m->map_epoch << " no changes from " << m->get_orig_source_inst() << dendl;
_reply_map(m, m->map_epoch);
return true;

ignore:
m->put();
return true;
}

bool OSDMonitor::prepare_pgtemp(MOSDPGTemp *m)
{
int from = m->get_orig_source().num();
dout(7) << "prepare_pgtemp e" << m->map_epoch << " from " << m->get_orig_source_inst() << dendl;
for (map<pg_t,vector<int32_t> >::iterator p = m->pg_temp.begin(); p != m->pg_temp.end(); ++p) {
uint64_t pool = p->first.pool();
if (pending_inc.old_pools.count(pool)) {
dout(10) << __func__ << " ignore " << p->first << " -> " << p->second
<< ": pool pending removal" << dendl;
continue;
}
if (!osdmap.have_pg_pool(pool)) {
dout(10) << __func__ << " ignore " << p->first << " -> " << p->second
<< ": pool has been removed" << dendl;
continue;
}
pending_inc.new_pg_temp[p->first] = p->second;

// unconditionally clear pg_primary (until this message can encode
// a change for that, too.. at which point we need to also fix
// preprocess_pg_temp)
if (osdmap.primary_temp->count(p->first) ||
pending_inc.new_primary_temp.count(p->first))
pending_inc.new_primary_temp[p->first] = -1;
}
pending_inc.new_up_thru[from] = m->map_epoch; // set up_thru too, so the osd doesn't have to ask again
wait_for_finished_proposal(new C_ReplyMap(this, m, m->map_epoch));
return true;
}


// ---

bool OSDMonitor::preprocess_remove_snaps(MRemoveSnaps *m)
{
dout(7) << "preprocess_remove_snaps " << *m << dendl;

// check privilege, ignore if failed
MonSession *session = m->get_session();
if (!session)
goto ignore;
if (!session->is_capable("osd", MON_CAP_R | MON_CAP_W)) {
dout(0) << "got preprocess_remove_snaps from entity with insufficient caps "
<< session->caps << dendl;
goto ignore;
}

for (map<int, vector<snapid_t> >::iterator q = m->snaps.begin();
q != m->snaps.end();
++q) {
if (!osdmap.have_pg_pool(q->first)) {
dout(10) << " ignoring removed_snaps " << q->second << " on non-existent pool " << q->first << dendl;
continue;
}
const pg_pool_t *pi = osdmap.get_pg_pool(q->first);
for (vector<snapid_t>::iterator p = q->second.begin();
p != q->second.end();
++p) {
if (*p > pi->get_snap_seq() ||
!pi->removed_snaps.contains(*p))
return false;
}
}

ignore:
m->put();
return true;
}

bool OSDMonitor::prepare_remove_snaps(MRemoveSnaps *m)
{
dout(7) << "prepare_remove_snaps " << *m << dendl;

for (map<int, vector<snapid_t> >::iterator p = m->snaps.begin();
p != m->snaps.end();
++p) {
pg_pool_t& pi = osdmap.pools[p->first];
for (vector<snapid_t>::iterator q = p->second.begin();
q != p->second.end();
++q) {
if (!pi.removed_snaps.contains(*q) &&
(!pending_inc.new_pools.count(p->first) ||
!pending_inc.new_pools[p->first].removed_snaps.contains(*q))) {
pg_pool_t *newpi = pending_inc.get_new_pool(p->first, &pi);
newpi->removed_snaps.insert(*q);
dout(10) << " pool " << p->first << " removed_snaps added " << *q
<< " (now " << newpi->removed_snaps << ")" << dendl;
if (*q > newpi->get_snap_seq()) {
dout(10) << " pool " << p->first << " snap_seq " << newpi->get_snap_seq() << " -> " << *q << dendl;
newpi->set_snap_seq(*q);
}
newpi->set_snap_epoch(pending_inc.epoch);
}
}
}

m->put();
return true;
}


// ---------------
// map helpers

void OSDMonitor::send_latest(PaxosServiceMessage *m, epoch_t start)
{
dout(5) << "send_latest to " << m->get_orig_source_inst()
<< " start " << start << dendl;
if (start == 0)
send_full(m);
else
send_incremental(m, start);
m->put();
}


MOSDMap *OSDMonitor::build_latest_full()
{
MOSDMap *r = new MOSDMap(mon->monmap->fsid);
get_version_full(osdmap.get_epoch(), r->maps[osdmap.get_epoch()]);
r->oldest_map = get_first_committed();
r->newest_map = osdmap.get_epoch();
return r;
}

MOSDMap *OSDMonitor::build_incremental(epoch_t from, epoch_t to)
{
dout(10) << "build_incremental [" << from << ".." << to << "]" << dendl;
MOSDMap *m = new MOSDMap(mon->monmap->fsid);
m->oldest_map = get_first_committed();
m->newest_map = osdmap.get_epoch();

for (epoch_t e = to; e >= from && e > 0; e--) {
bufferlist bl;
int err = get_version(e, bl);
if (err == 0) {
assert(bl.length());
// if (get_version(e, bl) > 0) {
dout(20) << "build_incremental inc " << e << " "
<< bl.length() << " bytes" << dendl;
m->incremental_maps[e] = bl;
} else {
assert(err == -ENOENT);
assert(!bl.length());
get_version_full(e, bl);
if (bl.length() > 0) {
//else if (get_version("full", e, bl) > 0) {
dout(20) << "build_incremental full " << e << " "
<< bl.length() << " bytes" << dendl;
m->maps[e] = bl;
} else {
assert(0); // we should have all maps.
}
}
}
return m;
}

void OSDMonitor::send_full(PaxosServiceMessage *m)
{
dout(5) << "send_full to " << m->get_orig_source_inst() << dendl;
mon->send_reply(m, build_latest_full());
}

/* TBH, I'm fairly certain these two functions could somehow be using a single
* helper function to do the heavy lifting. As this is not our main focus right
* now, I'm leaving it to the next near-future iteration over the services'
* code. We should not forget it though.
*
* TODO: create a helper function and get rid of the duplicated code.
*/
void OSDMonitor::send_incremental(PaxosServiceMessage *req, epoch_t first)
{
dout(5) << "send_incremental [" << first << ".." << osdmap.get_epoch() << "]"
<< " to " << req->get_orig_source_inst()
<< dendl;

int osd = -1;
if (req->get_source().is_osd()) {
osd = req->get_source().num();
map<int,epoch_t>::iterator p = osd_epoch.find(osd);
if (p != osd_epoch.end()) {
if (first <= p->second) {
dout(10) << __func__ << " osd." << osd << " should already have epoch "
<< p->second << dendl;
first = p->second + 1;
if (first > osdmap.get_epoch())
return;
}
}
}

if (first < get_first_committed()) {
first = get_first_committed();
bufferlist bl;
int err = get_version_full(first, bl);
assert(err == 0);
assert(bl.length());

dout(20) << "send_incremental starting with base full "
<< first << " " << bl.length() << " bytes" << dendl;

MOSDMap *m = new MOSDMap(osdmap.get_fsid());
m->oldest_map = first;
m->newest_map = osdmap.get_epoch();
m->maps[first] = bl;
mon->send_reply(req, m);

if (osd >= 0)
note_osd_has_epoch(osd, osdmap.get_epoch());
return;
}

// send some maps. it may not be all of them, but it will get them
// started.
epoch_t last = MIN(first + g_conf->osd_map_message_max, osdmap.get_epoch());
MOSDMap *m = build_incremental(first, last);
m->oldest_map = get_first_committed();
m->newest_map = osdmap.get_epoch();
mon->send_reply(req, m);

if (osd >= 0)
note_osd_has_epoch(osd, last);
}

// FIXME: we assume the OSD actually receives this. if the mon
// session drops and they reconnect we may not share the same maps
// with them again, which could cause a strange hang (perhaps stuck
// 'waiting for osdmap' requests?). this information should go in the
// MonSession, but I think these functions need to be refactored in
// terms of MonSession first for that to work.
void OSDMonitor::note_osd_has_epoch(int osd, epoch_t epoch)
{
dout(20) << __func__ << " osd." << osd << " epoch " << epoch << dendl;
map<int,epoch_t>::iterator p = osd_epoch.find(osd);
if (p != osd_epoch.end()) {
dout(20) << __func__ << " osd." << osd << " epoch " << epoch
<< " (was " << p->second << ")" << dendl;
p->second = epoch;
} else {
dout(20) << __func__ << " osd." << osd << " epoch " << epoch << dendl;
osd_epoch[osd] = epoch;
}
}

void OSDMonitor::send_incremental(epoch_t first, MonSession *session,
bool onetime)
{
dout(5) << "send_incremental [" << first << ".." << osdmap.get_epoch() << "]"
<< " to " << session->inst << dendl;

if (first < get_first_committed()) {
first = get_first_committed();
bufferlist bl;
int err = get_version_full(first, bl);
assert(err == 0);
assert(bl.length());

dout(20) << "send_incremental starting with base full "
<< first << " " << bl.length() << " bytes" << dendl;

MOSDMap *m = new MOSDMap(osdmap.get_fsid());
m->oldest_map = first;
m->newest_map = osdmap.get_epoch();
m->maps[first] = bl;
session->con->send_message(m);
first++;
}

while (first <= osdmap.get_epoch()) {
epoch_t last = MIN(first + g_conf->osd_map_message_max, osdmap.get_epoch());
MOSDMap *m = build_incremental(first, last);
session->con->send_message(m);
first = last + 1;

if (session->inst.name.is_osd())
note_osd_has_epoch(session->inst.name.num(), last);

if (onetime)
break;
}
}




epoch_t OSDMonitor::blacklist(const entity_addr_t& a, utime_t until)
{
dout(10) << "blacklist " << a << " until " << until << dendl;
pending_inc.new_blacklist[a] = until;
return pending_inc.epoch;
}


void OSDMonitor::check_subs()
{
dout(10) << __func__ << dendl;
string type = "osdmap";
if (mon->session_map.subs.count(type) == 0)
return;
xlist<Subscription*>::iterator p = mon->session_map.subs[type]->begin();
while (!p.end()) {
Subscription *sub = *p;
++p;
check_sub(sub);
}
}

void OSDMonitor::check_sub(Subscription *sub)
{
dout(10) << __func__ << " " << sub << " next " << sub->next
<< (sub->onetime ? " (onetime)":" (ongoing)") << dendl;
if (sub->next <= osdmap.get_epoch()) {
if (sub->next >= 1)
send_incremental(sub->next, sub->session, sub->incremental_onetime);
else
sub->session->con->send_message(build_latest_full());
if (sub->onetime)
mon->session_map.remove_sub(sub);
else
sub->next = osdmap.get_epoch() + 1;
}
}

// TICK


void OSDMonitor::tick()
{
if (!is_active()) return;

dout(10) << osdmap << dendl;

if (!mon->is_leader()) return;

bool do_propose = false;
utime_t now = ceph_clock_now(g_ceph_context);

// mark osds down?
check_failures(now);

// mark down osds out?

/* can_mark_out() checks if we can mark osds as being out. The -1 has no
* influence at all. The decision is made based on the ratio of "in" osds,
* and the function returns false if this ratio is lower that the minimum
* ratio set by g_conf->mon_osd_min_in_ratio. So it's not really up to us.
*/
if (can_mark_out(-1)) {
set<int> down_cache; // quick cache of down subtrees

map<int,utime_t>::iterator i = down_pending_out.begin();
while (i != down_pending_out.end()) {
int o = i->first;
utime_t down = now;
down -= i->second;
++i;

if (osdmap.is_down(o) &&
osdmap.is_in(o) &&
can_mark_out(o)) {
utime_t orig_grace(g_conf->mon_osd_down_out_interval, 0);
utime_t grace = orig_grace;
double my_grace = 0.0;

if (g_conf->mon_osd_adjust_down_out_interval) {
// scale grace period the same way we do the heartbeat grace.
const osd_xinfo_t& xi = osdmap.get_xinfo(o);
double halflife = (double)g_conf->mon_osd_laggy_halflife;
double decay_k = ::log(.5) / halflife;
double decay = exp((double)down * decay_k);
dout(20) << "osd." << o << " laggy halflife " << halflife << " decay_k " << decay_k
<< " down for " << down << " decay " << decay << dendl;
my_grace = decay * (double)xi.laggy_interval * xi.laggy_probability;
grace += my_grace;
}

// is this an entire large subtree down?
if (g_conf->mon_osd_down_out_subtree_limit.length()) {
int type = osdmap.crush->get_type_id(g_conf->mon_osd_down_out_subtree_limit);
if (type > 0) {
if (osdmap.containing_subtree_is_down(g_ceph_context, o, type, &down_cache)) {
dout(10) << "tick entire containing " << g_conf->mon_osd_down_out_subtree_limit
<< " subtree for osd." << o << " is down; resetting timer" << dendl;
// reset timer, too.
down_pending_out[o] = now;
continue;
}
}
}

if (g_conf->mon_osd_down_out_interval > 0 &&
down.sec() >= grace) {
dout(10) << "tick marking osd." << o << " OUT after " << down
<< " sec (target " << grace << " = " << orig_grace << " + " << my_grace << ")" << dendl;
pending_inc.new_weight[o] = CEPH_OSD_OUT;

// set the AUTOOUT bit.
if (pending_inc.new_state.count(o) == 0)
pending_inc.new_state[o] = 0;
pending_inc.new_state[o] |= CEPH_OSD_AUTOOUT;

// remember previous weight
if (pending_inc.new_xinfo.count(o) == 0)
pending_inc.new_xinfo[o] = osdmap.osd_xinfo[o];
pending_inc.new_xinfo[o].old_weight = osdmap.osd_weight[o];

do_propose = true;
mon->clog->info() << "osd." << o << " out (down for " << down << ")\n";
} else
continue;
}

down_pending_out.erase(o);
}
} else {
dout(10) << "tick NOOUT flag set, not checking down osds" << dendl;
}

// expire blacklisted items?
for (ceph::unordered_map<entity_addr_t,utime_t>::iterator p = osdmap.blacklist.begin();
p != osdmap.blacklist.end();
++p) {
if (p->second < now) {
dout(10) << "expiring blacklist item " << p->first << " expired " << p->second << " < now " << now << dendl;
pending_inc.old_blacklist.push_back(p->first);
do_propose = true;
}
}

//if map full setting has changed, get that info out there!
if (mon->pgmon()->is_readable()) {
if (!mon->pgmon()->pg_map.full_osds.empty()) {
dout(5) << "There are full osds, setting full flag" << dendl;
add_flag(CEPH_OSDMAP_FULL);
} else if (osdmap.test_flag(CEPH_OSDMAP_FULL)){
dout(10) << "No full osds, removing full flag" << dendl;
remove_flag(CEPH_OSDMAP_FULL);
}
if (pending_inc.new_flags != -1 &&
(pending_inc.new_flags ^ osdmap.flags) & CEPH_OSDMAP_FULL) {
dout(1) << "New setting for CEPH_OSDMAP_FULL -- doing propose" << dendl;
do_propose = true;
}
}
// ---------------
#define SWAP_PRIMARIES_AT_START 0
#define SWAP_TIME 1
#if 0
if (SWAP_PRIMARIES_AT_START) {
// For all PGs that have OSD 0 as the primary,
// switch them to use the first replca
ps_t numps = osdmap.get_pg_num();
for (int64_t pool=0; pool<1; pool++)
for (ps_t ps = 0; ps < numps; ++ps) {
pg_t pgid = pg_t(pg_t::TYPE_REPLICATED, ps, pool, -1);
vector<int> osds;
osdmap.pg_to_osds(pgid, osds);
if (osds[0] == 0) {
pending_inc.new_pg_swap_primary[pgid] = osds[1];
dout(3) << "Changing primary for PG " << pgid << " from " << osds[0] << " to "
<< osds[1] << dendl;
do_propose = true;
}
}
}
#endif
// ---------------

if (update_pools_status())
do_propose = true;

if (do_propose ||
!pending_inc.new_pg_temp.empty()) // also propose if we adjusted pg_temp
propose_pending();
}

void OSDMonitor::handle_osd_timeouts(const utime_t &now,
std::map<int,utime_t> &last_osd_report)
{
utime_t timeo(g_conf->mon_osd_report_timeout, 0);
int max_osd = osdmap.get_max_osd();
bool new_down = false;

for (int i=0; i < max_osd; ++i) {
dout(30) << "handle_osd_timeouts: checking up on osd " << i << dendl;
if (!osdmap.exists(i))
continue;
if (!osdmap.is_up(i))
continue;
const std::map<int,utime_t>::const_iterator t = last_osd_report.find(i);
if (t == last_osd_report.end()) {
// it wasn't in the map; start the timer.
last_osd_report[i] = now;
} else if (can_mark_down(i)) {
utime_t diff = now - t->second;
if (diff > timeo) {
mon->clog->info() << "osd." << i << " marked down after no pg stats for " << diff << "seconds\n";
derr << "no osd or pg stats from osd." << i << " since " << t->second << ", " << diff
<< " seconds ago. marking down" << dendl;
pending_inc.new_state[i] = CEPH_OSD_UP;
new_down = true;
}
}
}
if (new_down) {
propose_pending();
}
}

void OSDMonitor::mark_all_down()
{
assert(mon->is_leader());

dout(7) << "mark_all_down" << dendl;

set<int32_t> ls;
osdmap.get_all_osds(ls);
for (set<int32_t>::iterator it = ls.begin();
it != ls.end();
++it) {
if (osdmap.is_down(*it)) continue;
pending_inc.new_state[*it] = CEPH_OSD_UP;
}

propose_pending();
}

void OSDMonitor::get_health(list<pair<health_status_t,string> >& summary,
list<pair<health_status_t,string> > *detail) const
{
int num_osds = osdmap.get_num_osds();

if (num_osds == 0) {
summary.push_back(make_pair(HEALTH_ERR, "no osds"));
} else {
int num_in_osds = 0;
int num_down_in_osds = 0;
for (int i = 0; i < osdmap.get_max_osd(); i++) {
if (!osdmap.exists(i) || osdmap.is_out(i))
continue;
++num_in_osds;
if (!osdmap.is_up(i)) {
++num_down_in_osds;
if (detail) {
const osd_info_t& info = osdmap.get_info(i);
ostringstream ss;
ss << "osd." << i << " is down since epoch " << info.down_at
<< ", last address " << osdmap.get_addr(i);
detail->push_back(make_pair(HEALTH_WARN, ss.str()));
}
}
}
assert(num_down_in_osds <= num_in_osds);
if (num_down_in_osds > 0) {
ostringstream ss;
ss << num_down_in_osds << "/" << num_in_osds << " in osds are down";
summary.push_back(make_pair(HEALTH_WARN, ss.str()));
}

// warn about flags
if (osdmap.test_flag(CEPH_OSDMAP_PAUSERD |
CEPH_OSDMAP_PAUSEWR |
CEPH_OSDMAP_NOUP |
CEPH_OSDMAP_NODOWN |
CEPH_OSDMAP_NOIN |
CEPH_OSDMAP_NOOUT |
CEPH_OSDMAP_NOBACKFILL |
CEPH_OSDMAP_NOREBALANCE |
CEPH_OSDMAP_NORECOVER |
CEPH_OSDMAP_NOSCRUB |
CEPH_OSDMAP_NODEEP_SCRUB |
CEPH_OSDMAP_NOTIERAGENT)) {
ostringstream ss;
ss << osdmap.get_flag_string() << " flag(s) set";
summary.push_back(make_pair(HEALTH_WARN, ss.str()));
if (detail)
detail->push_back(make_pair(HEALTH_WARN, ss.str()));
}

// old crush tunables?
if (g_conf->mon_warn_on_legacy_crush_tunables) {
if (osdmap.crush->has_legacy_tunables()) {
ostringstream ss;
ss << "crush map has legacy tunables";
summary.push_back(make_pair(HEALTH_WARN, ss.str()));
if (detail) {
ss << "; see http://ceph.com/docs/master/rados/operations/crush-map/#tunables";
detail->push_back(make_pair(HEALTH_WARN, ss.str()));
}
}
}

// hit_set-less cache_mode?
if (g_conf->mon_warn_on_cache_pools_without_hit_sets) {
int problem_cache_pools = 0;
for (map<int64_t, pg_pool_t>::const_iterator p = osdmap.pools.begin();
p != osdmap.pools.end();
++p) {
const pg_pool_t& info = p->second;
if (info.cache_mode_requires_hit_set() &&
info.hit_set_params.get_type() == HitSet::TYPE_NONE) {
++problem_cache_pools;
if (detail) {
ostringstream ss;
ss << "pool '" << osdmap.get_pool_name(p->first)
<< "' with cache_mode " << info.get_cache_mode_name()
<< " needs hit_set_type to be set but it is not";
detail->push_back(make_pair(HEALTH_WARN, ss.str()));
}
}
}
if (problem_cache_pools) {
ostringstream ss;
ss << problem_cache_pools << " cache pools are missing hit_sets";
summary.push_back(make_pair(HEALTH_WARN, ss.str()));
}
}

// Warn if 'mon_osd_down_out_interval' is set to zero.
// Having this option set to zero on the leader acts much like the
// 'noout' flag. It's hard to figure out what's going wrong with clusters
// without the 'noout' flag set but acting like that just the same, so
// we report a HEALTH_WARN in case this option is set to zero.
// This is an ugly hack to get the warning out, but until we find a way
// to spread global options throughout the mon cluster and have all mons
// using a base set of the same options, we need to work around this sort
// of things.
// There's also the obvious drawback that if this is set on a single
// monitor on a 3-monitor cluster, this warning will only be shown every
// third monitor connection.
if (g_conf->mon_warn_on_osd_down_out_interval_zero &&
g_conf->mon_osd_down_out_interval == 0) {
ostringstream ss;
ss << "mon." << mon->name << " has mon_osd_down_out_interval set to 0";
summary.push_back(make_pair(HEALTH_WARN, ss.str()));
if (detail) {
ss << "; this has the same effect as the 'noout' flag";
detail->push_back(make_pair(HEALTH_WARN, ss.str()));
}
}

get_pools_health(summary, detail);
}
}

void OSDMonitor::dump_info(Formatter *f)
{
f->open_object_section("osdmap");
osdmap.dump(f);
f->close_section();

f->open_array_section("osd_metadata");
for (int i=0; i<osdmap.get_max_osd(); ++i) {
if (osdmap.exists(i)) {
f->open_object_section("osd");
f->dump_unsigned("id", i);
dump_osd_metadata(i, f, NULL);
f->close_section();
}
}
f->close_section();

f->dump_unsigned("osdmap_first_committed", get_first_committed());
f->dump_unsigned("osdmap_last_committed", get_last_committed());

f->open_object_section("crushmap");
osdmap.crush->dump(f);
f->close_section();
}

bool OSDMonitor::preprocess_command(MMonCommand *m)
{
int r = 0;
bufferlist rdata;
stringstream ss, ds;

map<string, cmd_vartype> cmdmap;
if (!cmdmap_from_json(m->cmd, &cmdmap, ss)) {
string rs = ss.str();
mon->reply_command(m, -EINVAL, rs, get_last_committed());
return true;
}

MonSession *session = m->get_session();
if (!session) {
mon->reply_command(m, -EACCES, "access denied", rdata, get_last_committed());
return true;
}

string prefix;
cmd_getval(g_ceph_context, cmdmap, "prefix", prefix);

string format;
cmd_getval(g_ceph_context, cmdmap, "format", format, string("plain"));
boost::scoped_ptr<Formatter> f(Formatter::create(format));

if (prefix == "osd stat") {
osdmap.print_summary(f.get(), ds);
if (f)
f->flush(rdata);
else
rdata.append(ds);
}
else if (prefix == "osd perf") {
const PGMap &pgm = mon->pgmon()->pg_map;
if (f) {
f->open_object_section("osdstats");
pgm.dump_osd_perf_stats(f.get());
f->close_section();
f->flush(ds);
} else {
pgm.print_osd_perf_stats(&ds);
}
rdata.append(ds);
}
else if (prefix == "osd blocked-by") {
const PGMap &pgm = mon->pgmon()->pg_map;
if (f) {
f->open_object_section("osd_blocked_by");
pgm.dump_osd_blocked_by_stats(f.get());
f->close_section();
f->flush(ds);
} else {
pgm.print_osd_blocked_by_stats(&ds);
}
rdata.append(ds);
}
else if (prefix == "osd dump" ||
prefix == "osd tree" ||
prefix == "osd ls" ||
prefix == "osd getmap" ||
prefix == "osd getcrushmap") {
string val;

epoch_t epoch = 0;
int64_t epochnum;
cmd_getval(g_ceph_context, cmdmap, "epoch", epochnum, (int64_t)0);
epoch = epochnum;
if (!epoch)
epoch = osdmap.get_epoch();

bufferlist osdmap_bl;
int err = get_version_full(epoch, osdmap_bl);
if (err == -ENOENT) {
r = -ENOENT;
ss << "there is no map for epoch " << epoch;
goto reply;
}
assert(err == 0);
assert(osdmap_bl.length());

OSDMap *p;
if (epoch == osdmap.get_epoch()) {
p = &osdmap;
} else {
p = new OSDMap;
p->decode(osdmap_bl);
}

if (prefix == "osd dump") {
stringstream ds;
if (f) {
f->open_object_section("osdmap");
p->dump(f.get());
f->close_section();
f->flush(ds);
} else {
p->print(ds);
}
rdata.append(ds);
if (!f)
ds << " ";
} else if (prefix == "osd ls") {
if (f) {
f->open_array_section("osds");
for (int i = 0; i < osdmap.get_max_osd(); i++) {
if (osdmap.exists(i)) {
f->dump_int("osd", i);
}
}
f->close_section();
f->flush(ds);
} else {
bool first = true;
for (int i = 0; i < osdmap.get_max_osd(); i++) {
if (osdmap.exists(i)) {
if (!first)
ds << "\n";
first = false;
ds << i;
}
}
}
rdata.append(ds);
} else if (prefix == "osd tree") {
if (f) {
f->open_object_section("tree");
p->print_tree(NULL, f.get());
f->close_section();
f->flush(ds);
} else {
p->print_tree(&ds, NULL);
}
rdata.append(ds);
} else if (prefix == "osd getmap") {
rdata.append(osdmap_bl);
ss << "got osdmap epoch " << p->get_epoch();
} else if (prefix == "osd getcrushmap") {
p->crush->encode(rdata);
ss << "got crush map from osdmap epoch " << p->get_epoch();
}
if (p != &osdmap)
delete p;
} else if (prefix == "osd df") {
string method;
cmd_getval(g_ceph_context, cmdmap, "output_method", method);
print_utilization(ds, f ? f.get() : NULL, method == "tree");
rdata.append(ds);
} else if (prefix == "osd getmaxosd") {
if (f) {
f->open_object_section("getmaxosd");
f->dump_unsigned("epoch", osdmap.get_epoch());
f->dump_int("max_osd", osdmap.get_max_osd());
f->close_section();
f->flush(rdata);
} else {
ds << "max_osd = " << osdmap.get_max_osd() << " in epoch " << osdmap.get_epoch();
rdata.append(ds);
}
} else if (prefix == "osd find") {
int64_t osd;
if (!cmd_getval(g_ceph_context, cmdmap, "id", osd)) {
ss << "unable to parse osd id value '"
<< cmd_vartype_stringify(cmdmap["id"]) << "'";
r = -EINVAL;
goto reply;
}
if (!osdmap.exists(osd)) {
ss << "osd." << osd << " does not exist";
r = -ENOENT;
goto reply;
}
string format;
cmd_getval(g_ceph_context, cmdmap, "format", format);
boost::scoped_ptr<Formatter> f(Formatter::create(format, "json-pretty", "json-pretty"));
f->open_object_section("osd_location");
f->dump_int("osd", osd);
f->dump_stream("ip") << osdmap.get_addr(osd);
f->open_object_section("crush_location");
map<string,string> loc = osdmap.crush->get_full_location(osd);
for (map<string,string>::iterator p = loc.begin(); p != loc.end(); ++p)
f->dump_string(p->first.c_str(), p->second);
f->close_section();
f->close_section();
f->flush(rdata);
} else if (prefix == "osd metadata") {
int64_t osd;
if (!cmd_getval(g_ceph_context, cmdmap, "id", osd)) {
ss << "unable to parse osd id value '"
<< cmd_vartype_stringify(cmdmap["id"]) << "'";
r = -EINVAL;
goto reply;
}
if (!osdmap.exists(osd)) {
ss << "osd." << osd << " does not exist";
r = -ENOENT;
goto reply;
}
string format;
cmd_getval(g_ceph_context, cmdmap, "format", format);
boost::scoped_ptr<Formatter> f(Formatter::create(format, "json-pretty", "json-pretty"));
f->open_object_section("osd_metadata");
r = dump_osd_metadata(osd, f.get(), &ss);
if (r < 0)
goto reply;
f->close_section();
f->flush(rdata);
} else if (prefix == "osd map") {
string poolstr, objstr, namespacestr;
cmd_getval(g_ceph_context, cmdmap, "pool", poolstr);
cmd_getval(g_ceph_context, cmdmap, "object", objstr);
cmd_getval(g_ceph_context, cmdmap, "nspace", namespacestr);

int64_t pool = osdmap.lookup_pg_pool_name(poolstr.c_str());
if (pool < 0) {
ss << "pool " << poolstr << " does not exist";
r = -ENOENT;
goto reply;
}
object_locator_t oloc(pool, namespacestr);
object_t oid(objstr);
pg_t pgid = osdmap.object_locator_to_pg(oid, oloc);
pg_t mpgid = osdmap.raw_pg_to_pg(pgid);
vector<int> up, acting;
int up_p, acting_p;
osdmap.pg_to_up_acting_osds(mpgid, &up, &up_p, &acting, &acting_p);

string fullobjname;
if (!namespacestr.empty())
fullobjname = namespacestr + string("/") + oid.name;
else
fullobjname = oid.name;
if (f) {
f->open_object_section("osd_map");
f->dump_unsigned("epoch", osdmap.get_epoch());
f->dump_string("pool", poolstr);
f->dump_int("pool_id", pool);
f->dump_stream("objname") << fullobjname;
f->dump_stream("raw_pgid") << pgid;
f->dump_stream("pgid") << mpgid;
f->open_array_section("up");
for (vector<int>::iterator p = up.begin(); p != up.end(); ++p)
f->dump_int("osd", *p);
f->close_section();
f->dump_int("up_primary", up_p);
f->open_array_section("acting");
for (vector<int>::iterator p = acting.begin(); p != acting.end(); ++p)
f->dump_int("osd", *p);
f->close_section();
f->dump_int("acting_primary", acting_p);
f->close_section(); // osd_map
f->flush(rdata);
} else {
ds << "osdmap e" << osdmap.get_epoch()
<< " pool '" << poolstr << "' (" << pool << ")"
<< " object '" << fullobjname << "' ->"
<< " pg " << pgid << " (" << mpgid << ")"
<< " -> up (" << up << ", p" << up_p << ") acting ("
<< acting << ", p" << acting_p << ")";
rdata.append(ds);
}
} else if ((prefix == "osd scrub" ||
prefix == "osd deep-scrub" ||
prefix == "osd repair")) {
string whostr;
cmd_getval(g_ceph_context, cmdmap, "who", whostr);
vector<string> pvec;
get_str_vec(prefix, pvec);

if (whostr == "*") {
ss << "osds ";
int c = 0;
for (int i = 0; i < osdmap.get_max_osd(); i++)
if (osdmap.is_up(i)) {
ss << (c++ ? "," : "") << i;
mon->try_send_message(new MOSDScrub(osdmap.get_fsid(),
pvec.back() == "repair",
pvec.back() == "deep-scrub"),
osdmap.get_inst(i));
}
r = 0;
ss << " instructed to " << pvec.back();
} else {
long osd = parse_osd_id(whostr.c_str(), &ss);
if (osd < 0) {
r = -EINVAL;
} else if (osdmap.is_up(osd)) {
mon->try_send_message(new MOSDScrub(osdmap.get_fsid(),
pvec.back() == "repair",
pvec.back() == "deep-scrub"),
osdmap.get_inst(osd));
ss << "osd." << osd << " instructed to " << pvec.back();
} else {
ss << "osd." << osd << " is not up";
r = -EAGAIN;
}
}
} else if (prefix == "osd lspools") {
int64_t auid;
cmd_getval(g_ceph_context, cmdmap, "auid", auid, int64_t(0));
if (f)
f->open_array_section("pools");
for (map<int64_t, pg_pool_t>::iterator p = osdmap.pools.begin();
p != osdmap.pools.end();
++p) {
if (!auid || p->second.auid == (uint64_t)auid) {
if (f) {
f->open_object_section("pool");
f->dump_int("poolnum", p->first);
f->dump_string("poolname", osdmap.pool_name[p->first]);
f->close_section();
} else {
ds << p->first << ' ' << osdmap.pool_name[p->first] << ',';
}
}
}
if (f) {
f->close_section();
f->flush(ds);
}
rdata.append(ds);
} else if (prefix == "osd blacklist ls") {
if (f)
f->open_array_section("blacklist");

for (ceph::unordered_map<entity_addr_t,utime_t>::iterator p = osdmap.blacklist.begin();
p != osdmap.blacklist.end();
++p) {
if (f) {
f->open_object_section("entry");
f->dump_stream("addr") << p->first;
f->dump_stream("until") << p->second;
f->close_section();
} else {
stringstream ss;
string s;
ss << p->first << " " << p->second;
getline(ss, s);
s += "\n";
rdata.append(s);
}
}
if (f) {
f->close_section();
f->flush(rdata);
}
ss << "listed " << osdmap.blacklist.size() << " entries";

} else if (prefix == "osd pool ls") {
string detail;
cmd_getval(g_ceph_context, cmdmap, "detail", detail);
if (!f && detail == "detail") {
ostringstream ss;
osdmap.print_pools(ss);
rdata.append(ss.str());
} else {
if (f)
f->open_array_section("pools");
for (map<int64_t,pg_pool_t>::const_iterator it = osdmap.get_pools().begin();
it != osdmap.get_pools().end();
++it) {
if (f) {
if (detail == "detail") {
f->open_object_section("pool");
f->dump_string("pool_name", osdmap.get_pool_name(it->first));
it->second.dump(f.get());
f->close_section();
} else {
f->dump_string("pool_name", osdmap.get_pool_name(it->first));
}
} else {
rdata.append(osdmap.get_pool_name(it->first) + "\n");
}
}
if (f) {
f->close_section();
f->flush(rdata);
}
}

} else if (prefix == "osd crush get-tunable") {
string tunable;
cmd_getval(g_ceph_context, cmdmap, "tunable", tunable);
int value;
cmd_getval(g_ceph_context, cmdmap, "value", value);
ostringstream rss;
if (f)
f->open_object_section("tunable");
if (tunable == "straw_calc_version") {
if (f)
f->dump_int(tunable.c_str(), osdmap.crush->get_straw_calc_version());
else
rss << osdmap.crush->get_straw_calc_version() << "\n";
} else {
r = -EINVAL;
goto reply;
}
if (f) {
f->close_section();
f->flush(rdata);
} else {
rdata.append(rss.str());
}
r = 0;

} else if (prefix == "osd pool get") {
string poolstr;
cmd_getval(g_ceph_context, cmdmap, "pool", poolstr);
int64_t pool = osdmap.lookup_pg_pool_name(poolstr.c_str());
if (pool < 0) {
ss << "unrecognized pool '" << poolstr << "'";
r = -ENOENT;
goto reply;
}

const pg_pool_t *p = osdmap.get_pg_pool(pool);
string var;
cmd_getval(g_ceph_context, cmdmap, "var", var);

if (!p->is_tier() &&
(var == "hit_set_type" || var == "hit_set_period" ||
var == "hit_set_count" || var == "hit_set_fpp" ||
var == "target_max_objects" || var == "target_max_bytes" ||
var == "cache_target_full_ratio" ||
var == "cache_target_dirty_ratio" ||
var == "cache_min_flush_age" || var == "cache_min_evict_age")) {
ss << "pool '" << poolstr
<< "' is not a tier pool: variable not applicable";
r = -EACCES;
goto reply;
}

if (!p->is_erasure() && var == "erasure_code_profile") {
ss << "pool '" << poolstr
<< "' is not a erasure pool: variable not applicable";
r = -EACCES;
goto reply;
}

if (f) {
f->open_object_section("pool");
f->dump_string("pool", poolstr);
f->dump_int("pool_id", pool);

if (var == "pg_num") {
f->dump_int("pg_num", p->get_pg_num());
} else if (var == "pgp_num") {
f->dump_int("pgp_num", p->get_pgp_num());
} else if (var == "auid") {
f->dump_int("auid", p->get_auid());
} else if (var == "size") {
f->dump_int("size", p->get_size());
} else if (var == "min_size") {
f->dump_int("min_size", p->get_min_size());
} else if (var == "crash_replay_interval") {
f->dump_int("crash_replay_interval", p->get_crash_replay_interval());
} else if (var == "crush_ruleset") {
f->dump_int("crush_ruleset", p->get_crush_ruleset());
} else if (var == "hit_set_period") {
f->dump_int("hit_set_period", p->hit_set_period);
} else if (var == "hit_set_count") {
f->dump_int("hit_set_count", p->hit_set_count);
} else if (var == "hit_set_type") {
f->dump_string("hit_set_type", HitSet::get_type_name(p->hit_set_params.get_type()));
} else if (var == "hit_set_fpp") {
if (p->hit_set_params.get_type() != HitSet::TYPE_BLOOM) {
f->close_section();
ss << "hit set is no of type Bloom; invalid to get a false positive rate!";
r = -EINVAL;
goto reply;
} else {
BloomHitSet::Params *bloomp = static_cast<BloomHitSet::Params*>(p->hit_set_params.impl.get());
f->dump_float("hit_set_fpp", bloomp->get_fpp());
}
} else if (var == "target_max_objects") {
f->dump_unsigned("target_max_objects", p->target_max_objects);
} else if (var == "target_max_bytes") {
f->dump_unsigned("target_max_bytes", p->target_max_bytes);
} else if (var == "cache_target_dirty_ratio") {
f->dump_unsigned("cache_target_dirty_ratio_micro",
p->cache_target_dirty_ratio_micro);
f->dump_float("cache_target_dirty_ratio",
((float)p->cache_target_dirty_ratio_micro/1000000));
} else if (var == "cache_target_full_ratio") {
f->dump_unsigned("cache_target_full_ratio_micro",
p->cache_target_full_ratio_micro);
f->dump_float("cache_target_full_ratio",
((float)p->cache_target_full_ratio_micro/1000000));
} else if (var == "cache_min_flush_age") {
f->dump_unsigned("cache_min_flush_age", p->cache_min_flush_age);
} else if (var == "cache_min_evict_age") {
f->dump_unsigned("cache_min_evict_age", p->cache_min_evict_age);
} else if (var == "erasure_code_profile") {
f->dump_string("erasure_code_profile", p->erasure_code_profile);
} else if (var == "min_read_recency_for_promote") {
f->dump_int("min_read_recency_for_promote", p->min_read_recency_for_promote);
} else if (var == "write_fadvise_dontneed") {
f->dump_string("write_fadvise_dontneed", p->has_flag(pg_pool_t::FLAG_WRITE_FADVISE_DONTNEED) ? "true" : "false");
}

f->close_section();
f->flush(rdata);
} else {
if (var == "pg_num") {
ss << "pg_num: " << p->get_pg_num();
} else if (var == "pgp_num") {
ss << "pgp_num: " << p->get_pgp_num();
} else if (var == "auid") {
ss << "auid: " << p->get_auid();
} else if (var == "size") {
ss << "size: " << p->get_size();
} else if (var == "min_size") {
ss << "min_size: " << p->get_min_size();
} else if (var == "crash_replay_interval") {
ss << "crash_replay_interval: " << p->get_crash_replay_interval();
} else if (var == "crush_ruleset") {
ss << "crush_ruleset: " << p->get_crush_ruleset();
} else if (var == "hit_set_period") {
ss << "hit_set_period: " << p->hit_set_period;
} else if (var == "hit_set_count") {
ss << "hit_set_count: " << p->hit_set_count;
} else if (var == "hit_set_type") {
ss << "hit_set_type: " << HitSet::get_type_name(p->hit_set_params.get_type());
} else if (var == "hit_set_fpp") {
if (p->hit_set_params.get_type() != HitSet::TYPE_BLOOM) {
ss << "hit set is no of type Bloom; invalid to get a false positive rate!";
r = -EINVAL;
goto reply;
}
BloomHitSet::Params *bloomp = static_cast<BloomHitSet::Params*>(p->hit_set_params.impl.get());
ss << "hit_set_fpp: " << bloomp->get_fpp();
} else if (var == "target_max_objects") {
ss << "target_max_objects: " << p->target_max_objects;
} else if (var == "target_max_bytes") {
ss << "target_max_bytes: " << p->target_max_bytes;
} else if (var == "cache_target_dirty_ratio") {
ss << "cache_target_dirty_ratio: "
<< ((float)p->cache_target_dirty_ratio_micro/1000000);
} else if (var == "cache_target_full_ratio") {
ss << "cache_target_full_ratio: "
<< ((float)p->cache_target_full_ratio_micro/1000000);
} else if (var == "cache_min_flush_age") {
ss << "cache_min_flush_age: " << p->cache_min_flush_age;
} else if (var == "cache_min_evict_age") {
ss << "cache_min_evict_age: " << p->cache_min_evict_age;
} else if (var == "erasure_code_profile") {
ss << "erasure_code_profile: " << p->erasure_code_profile;
} else if (var == "min_read_recency_for_promote") {
ss << "min_read_recency_for_promote: " << p->min_read_recency_for_promote;
} else if (var == "write_fadvise_dontneed") {
ss << "write_fadvise_dontneed: " << (p->has_flag(pg_pool_t::FLAG_WRITE_FADVISE_DONTNEED) ? "true" : "false");
}

rdata.append(ss);
ss.str("");
}
r = 0;

} else if (prefix == "osd pool stats") {
string pool_name;
cmd_getval(g_ceph_context, cmdmap, "name", pool_name);

PGMap& pg_map = mon->pgmon()->pg_map;

int64_t poolid = -ENOENT;
bool one_pool = false;
if (!pool_name.empty()) {
poolid = osdmap.lookup_pg_pool_name(pool_name);
if (poolid < 0) {
assert(poolid == -ENOENT);
ss << "unrecognized pool '" << pool_name << "'";
r = -ENOENT;
goto reply;
}
one_pool = true;
}

stringstream rs;

if (f)
f->open_array_section("pool_stats");
if (osdmap.get_pools().size() == 0) {
if (!f)
ss << "there are no pools!";
goto stats_out;
}

for (map<int64_t,pg_pool_t>::const_iterator it = osdmap.get_pools().begin();
it != osdmap.get_pools().end();
++it) {

if (!one_pool)
poolid = it->first;

pool_name = osdmap.get_pool_name(poolid);

if (f) {
f->open_object_section("pool");
f->dump_string("pool_name", pool_name.c_str());
f->dump_int("pool_id", poolid);
f->open_object_section("recovery");
}

list<string> sl;
stringstream tss;
pg_map.pool_recovery_summary(f.get(), &sl, poolid);
if (!f && !sl.empty()) {
for (list<string>::iterator p = sl.begin(); p != sl.end(); ++p)
tss << " " << *p << "\n";
}

if (f) {
f->close_section();
f->open_object_section("recovery_rate");
}

ostringstream rss;
pg_map.pool_recovery_rate_summary(f.get(), &rss, poolid);
if (!f && !rss.str().empty())
tss << " recovery io " << rss.str() << "\n";

if (f) {
f->close_section();
f->open_object_section("client_io_rate");
}

rss.clear();
rss.str("");

pg_map.pool_client_io_rate_summary(f.get(), &rss, poolid);
if (!f && !rss.str().empty())
tss << " client io " << rss.str() << "\n";

if (f) {
f->close_section();
f->close_section();
} else {
rs << "pool " << pool_name << " id " << poolid << "\n";
if (!tss.str().empty())
rs << tss.str() << "\n";
else
rs << " nothing is going on\n\n";
}

if (one_pool)
break;
}

stats_out:
if (f) {
f->close_section();
f->flush(rdata);
} else {
rdata.append(rs.str());
}
rdata.append("\n");
r = 0;

} else if (prefix == "osd pool get-quota") {
string pool_name;
cmd_getval(g_ceph_context, cmdmap, "pool", pool_name);

int64_t poolid = osdmap.lookup_pg_pool_name(pool_name);
if (poolid < 0) {
assert(poolid == -ENOENT);
ss << "unrecognized pool '" << pool_name << "'";
r = -ENOENT;
goto reply;
}
const pg_pool_t *p = osdmap.get_pg_pool(poolid);

if (f) {
f->open_object_section("pool_quotas");
f->dump_string("pool_name", pool_name);
f->dump_unsigned("pool_id", poolid);
f->dump_unsigned("quota_max_objects", p->quota_max_objects);
f->dump_unsigned("quota_max_bytes", p->quota_max_bytes);
f->close_section();
f->flush(rdata);
} else {
stringstream rs;
rs << "quotas for pool '" << pool_name << "':\n"
<< " max objects: ";
if (p->quota_max_objects == 0)
rs << "N/A";
else
rs << si_t(p->quota_max_objects) << " objects";
rs << "\n"
<< " max bytes : ";
if (p->quota_max_bytes == 0)
rs << "N/A";
else
rs << si_t(p->quota_max_bytes) << "B";
rdata.append(rs.str());
}
rdata.append("\n");
r = 0;
} else if (prefix == "osd crush rule list" ||
prefix == "osd crush rule ls") {
string format;
cmd_getval(g_ceph_context, cmdmap, "format", format);
boost::scoped_ptr<Formatter> f(Formatter::create(format, "json-pretty", "json-pretty"));
f->open_array_section("rules");
osdmap.crush->list_rules(f.get());
f->close_section();
ostringstream rs;
f->flush(rs);
rs << "\n";
rdata.append(rs.str());
} else if (prefix == "osd crush rule dump") {
string name;
cmd_getval(g_ceph_context, cmdmap, "name", name);
string format;
cmd_getval(g_ceph_context, cmdmap, "format", format);
boost::scoped_ptr<Formatter> f(Formatter::create(format, "json-pretty", "json-pretty"));
if (name == "") {
f->open_array_section("rules");
osdmap.crush->dump_rules(f.get());
f->close_section();
} else {
int ruleno = osdmap.crush->get_rule_id(name);
if (ruleno < 0) {
ss << "unknown crush ruleset '" << name << "'";
r = ruleno;
goto reply;
}
osdmap.crush->dump_rule(ruleno, f.get());
}
ostringstream rs;
f->flush(rs);
rs << "\n";
rdata.append(rs.str());
} else if (prefix == "osd crush dump") {
string format;
cmd_getval(g_ceph_context, cmdmap, "format", format);
boost::scoped_ptr<Formatter> f(Formatter::create(format, "json-pretty", "json-pretty"));
f->open_object_section("crush_map");
osdmap.crush->dump(f.get());
f->close_section();
ostringstream rs;
f->flush(rs);
rs << "\n";
rdata.append(rs.str());
} else if (prefix == "osd crush show-tunables") {
string format;
cmd_getval(g_ceph_context, cmdmap, "format", format);
boost::scoped_ptr<Formatter> f(Formatter::create(format, "json-pretty", "json-pretty"));
f->open_object_section("crush_map_tunables");
osdmap.crush->dump_tunables(f.get());
f->close_section();
ostringstream rs;
f->flush(rs);
rs << "\n";
rdata.append(rs.str());
} else if (prefix == "osd erasure-code-profile ls") {
const map<string,map<string,string> > &profiles =
osdmap.get_erasure_code_profiles();
if (f)
f->open_array_section("erasure-code-profiles");
for(map<string,map<string,string> >::const_iterator i = profiles.begin();
i != profiles.end();
++i) {
if (f)
f->dump_string("profile", i->first.c_str());
else
rdata.append(i->first + "\n");
}
if (f) {
f->close_section();
ostringstream rs;
f->flush(rs);
rs << "\n";
rdata.append(rs.str());
}
} else if (prefix == "osd erasure-code-profile get") {
string name;
cmd_getval(g_ceph_context, cmdmap, "name", name);
if (!osdmap.has_erasure_code_profile(name)) {
ss << "unknown erasure code profile '" << name << "'";
r = -ENOENT;
goto reply;
}
const map<string,string> &profile = osdmap.get_erasure_code_profile(name);
if (f)
f->open_object_section("profile");
for (map<string,string>::const_iterator i = profile.begin();
i != profile.end();
++i) {
if (f)
f->dump_string(i->first.c_str(), i->second.c_str());
else
rdata.append(i->first + "=" + i->second + "\n");
}
if (f) {
f->close_section();
ostringstream rs;
f->flush(rs);
rs << "\n";
rdata.append(rs.str());
}
} else {
// try prepare update
return false;
}

reply:
string rs;
getline(ss, rs);
mon->reply_command(m, r, rs, rdata, get_last_committed());
return true;
}

void OSDMonitor::update_pool_flags(int64_t pool_id, uint64_t flags)
{
const pg_pool_t *pool = osdmap.get_pg_pool(pool_id);
pending_inc.get_new_pool(pool_id, pool)->flags = flags;
}

bool OSDMonitor::update_pools_status()
{
if (!mon->pgmon()->is_readable())
return false;

bool ret = false;

const map<int64_t,pg_pool_t>& pools = osdmap.get_pools();
for (map<int64_t,pg_pool_t>::const_iterator it = pools.begin();
it != pools.end();
++it) {
if (!mon->pgmon()->pg_map.pg_pool_sum.count(it->first))
continue;
pool_stat_t& stats = mon->pgmon()->pg_map.pg_pool_sum[it->first];
object_stat_sum_t& sum = stats.stats.sum;
const pg_pool_t &pool = it->second;
const string& pool_name = osdmap.get_pool_name(it->first);

bool pool_is_full =
(pool.quota_max_bytes > 0 && (uint64_t)sum.num_bytes >= pool.quota_max_bytes) ||
(pool.quota_max_objects > 0 && (uint64_t)sum.num_objects >= pool.quota_max_objects);

if (pool.has_flag(pg_pool_t::FLAG_FULL)) {
if (pool_is_full)
continue;

mon->clog->info() << "pool '" << pool_name
<< "' no longer full; removing FULL flag";

update_pool_flags(it->first, pool.get_flags() & ~pg_pool_t::FLAG_FULL);
ret = true;
} else {
if (!pool_is_full)
continue;

if (pool.quota_max_bytes > 0 &&
(uint64_t)sum.num_bytes >= pool.quota_max_bytes) {
mon->clog->warn() << "pool '" << pool_name << "' is full"
<< " (reached quota's max_bytes: "
<< si_t(pool.quota_max_bytes) << ")";
} else if (pool.quota_max_objects > 0 &&
(uint64_t)sum.num_objects >= pool.quota_max_objects) {
mon->clog->warn() << "pool '" << pool_name << "' is full"
<< " (reached quota's max_objects: "
<< pool.quota_max_objects << ")";
} else {
assert(0 == "we shouldn't reach this");
}
update_pool_flags(it->first, pool.get_flags() | pg_pool_t::FLAG_FULL);
ret = true;
}
}
return ret;
}

void OSDMonitor::get_pools_health(
list<pair<health_status_t,string> >& summary,
list<pair<health_status_t,string> > *detail) const
{
const map<int64_t,pg_pool_t>& pools = osdmap.get_pools();
for (map<int64_t,pg_pool_t>::const_iterator it = pools.begin();
it != pools.end(); ++it) {
if (!mon->pgmon()->pg_map.pg_pool_sum.count(it->first))
continue;
pool_stat_t& stats = mon->pgmon()->pg_map.pg_pool_sum[it->first];
object_stat_sum_t& sum = stats.stats.sum;
const pg_pool_t &pool = it->second;
const string& pool_name = osdmap.get_pool_name(it->first);

if (pool.has_flag(pg_pool_t::FLAG_FULL)) {
// uncomment these asserts if/when we update the FULL flag on pg_stat update
//assert((pool.quota_max_objects > 0) || (pool.quota_max_bytes > 0));

stringstream ss;
ss << "pool '" << pool_name << "' is full";
summary.push_back(make_pair(HEALTH_WARN, ss.str()));
if (detail)
detail->push_back(make_pair(HEALTH_WARN, ss.str()));
}

float warn_threshold = g_conf->mon_pool_quota_warn_threshold/100;
float crit_threshold = g_conf->mon_pool_quota_crit_threshold/100;

if (pool.quota_max_objects > 0) {
stringstream ss;
health_status_t status = HEALTH_OK;
if ((uint64_t)sum.num_objects >= pool.quota_max_objects) {
// uncomment these asserts if/when we update the FULL flag on pg_stat update
//assert(pool.has_flag(pg_pool_t::FLAG_FULL));
} else if (crit_threshold > 0 &&
sum.num_objects >= pool.quota_max_objects*crit_threshold) {
ss << "pool '" << pool_name
<< "' has " << sum.num_objects << " objects"
<< " (max " << pool.quota_max_objects << ")";
status = HEALTH_ERR;
} else if (warn_threshold > 0 &&
sum.num_objects >= pool.quota_max_objects*warn_threshold) {
ss << "pool '" << pool_name
<< "' has " << sum.num_objects << " objects"
<< " (max " << pool.quota_max_objects << ")";
status = HEALTH_WARN;
}
if (status != HEALTH_OK) {
pair<health_status_t,string> s(status, ss.str());
summary.push_back(s);
if (detail)
detail->push_back(s);
}
}

if (pool.quota_max_bytes > 0) {
health_status_t status = HEALTH_OK;
stringstream ss;
if ((uint64_t)sum.num_bytes >= pool.quota_max_bytes) {
// uncomment these asserts if/when we update the FULL flag on pg_stat update
//assert(pool.has_flag(pg_pool_t::FLAG_FULL));
} else if (crit_threshold > 0 &&
sum.num_bytes >= pool.quota_max_bytes*crit_threshold) {
ss << "pool '" << pool_name
<< "' has " << si_t(sum.num_bytes) << " bytes"
<< " (max " << si_t(pool.quota_max_bytes) << ")";
status = HEALTH_ERR;
} else if (warn_threshold > 0 &&
sum.num_bytes >= pool.quota_max_bytes*warn_threshold) {
ss << "pool '" << pool_name
<< "' has " << si_t(sum.num_bytes) << " objects"
<< " (max " << si_t(pool.quota_max_bytes) << ")";
status = HEALTH_WARN;
}
if (status != HEALTH_OK) {
pair<health_status_t,string> s(status, ss.str());
summary.push_back(s);
if (detail)
detail->push_back(s);
}
}
}
}


int OSDMonitor::prepare_new_pool(MPoolOp *m)
{
dout(10) << "prepare_new_pool from " << m->get_connection() << dendl;
MonSession *session = m->get_session();
if (!session)
return -EPERM;
string erasure_code_profile;
stringstream ss;
string ruleset_name;
if (m->auid)
return prepare_new_pool(m->name, m->auid, m->crush_rule, ruleset_name,
0, 0,
erasure_code_profile,
pg_pool_t::TYPE_REPLICATED, 0, ss);
else
return prepare_new_pool(m->name, session->auid, m->crush_rule, ruleset_name,
0, 0,
erasure_code_profile,
pg_pool_t::TYPE_REPLICATED, 0, ss);
}

int OSDMonitor::crush_rename_bucket(const string& srcname,
const string& dstname,
ostream *ss)
{
int ret;
//
// Avoid creating a pending crush if it does not already exists and
// the rename would fail.
//
if (!_have_pending_crush()) {
ret = _get_stable_crush().can_rename_bucket(srcname,
dstname,
ss);
if (ret)
return ret;
}

CrushWrapper newcrush;
_get_pending_crush(newcrush);

ret = newcrush.rename_bucket(srcname,
dstname,
ss);
if (ret)
return ret;
pending_inc.crush.clear();
newcrush.encode(pending_inc.crush);
*ss << "renamed bucket " << srcname << " into " << dstname;
return 0;
}

int OSDMonitor::crush_ruleset_create_erasure(const string &name,
const string &profile,
int *ruleset,
stringstream &ss)
{
int ruleid = osdmap.crush->get_rule_id(name);
if (ruleid != -ENOENT) {
*ruleset = osdmap.crush->get_rule_mask_ruleset(ruleid);
return -EEXIST;
}

CrushWrapper newcrush;
_get_pending_crush(newcrush);

ruleid = newcrush.get_rule_id(name);
if (ruleid != -ENOENT) {
*ruleset = newcrush.get_rule_mask_ruleset(ruleid);
return -EALREADY;
} else {
ErasureCodeInterfaceRef erasure_code;
int err = get_erasure_code(profile, &erasure_code, ss);
if (err) {
ss << "failed to load plugin using profile " << profile << std::endl;
return err;
}

err = erasure_code->create_ruleset(name, newcrush, &ss);
erasure_code.reset();
if (err < 0)
return err;
*ruleset = err;
pending_inc.crush.clear();
newcrush.encode(pending_inc.crush);
return 0;
}
}

int OSDMonitor::get_erasure_code(const string &erasure_code_profile,
ErasureCodeInterfaceRef *erasure_code,
stringstream &ss) const
{
if (pending_inc.has_erasure_code_profile(erasure_code_profile))
return -EAGAIN;
const map<string,string> &profile =
osdmap.get_erasure_code_profile(erasure_code_profile);
map<string,string>::const_iterator plugin =
profile.find("plugin");
if (plugin == profile.end()) {
ss << "cannot determine the erasure code plugin"
<< " because there is no 'plugin' entry in the erasure_code_profile "
<< profile << std::endl;
return -EINVAL;
}
ErasureCodePluginRegistry &instance = ErasureCodePluginRegistry::instance();
return instance.factory(plugin->second, profile, erasure_code, ss);
}

int OSDMonitor::check_cluster_features(uint64_t features,
stringstream &ss)
{
stringstream unsupported_ss;
int unsupported_count = 0;
if ((mon->get_quorum_features() & features) != features) {
unsupported_ss << "the monitor cluster";
++unsupported_count;
}

set<int32_t> up_osds;
osdmap.get_up_osds(up_osds);
for (set<int32_t>::iterator it = up_osds.begin();
it != up_osds.end(); ++it) {
const osd_xinfo_t &xi = osdmap.get_xinfo(*it);
if ((xi.features & features) != features) {
if (unsupported_count > 0)
unsupported_ss << ", ";
unsupported_ss << "osd." << *it;
unsupported_count ++;
}
}

if (unsupported_count > 0) {
ss << "features " << features << " unsupported by: "
<< unsupported_ss.str();
return -ENOTSUP;
}

// check pending osd state, too!
for (map<int32_t,osd_xinfo_t>::const_iterator p =
pending_inc.new_xinfo.begin();
p != pending_inc.new_xinfo.end(); ++p) {
const osd_xinfo_t &xi = p->second;
if ((xi.features & features) != features) {
dout(10) << __func__ << " pending osd." << p->first
<< " features are insufficient; retry" << dendl;
return -EAGAIN;
}
}

return 0;
}

bool OSDMonitor::validate_crush_against_features(const CrushWrapper *newcrush,
stringstream& ss)
{
OSDMap::Incremental new_pending = pending_inc;
::encode(*newcrush, new_pending.crush);
OSDMap newmap;
newmap.deepish_copy_from(osdmap);
newmap.apply_incremental(new_pending);

uint64_t features =
newmap.get_features(CEPH_ENTITY_TYPE_MON, NULL) |
newmap.get_features(CEPH_ENTITY_TYPE_OSD, NULL);

stringstream features_ss;
int r = check_cluster_features(features, features_ss);
if (!r)
return true;

ss << "Could not change CRUSH: " << features_ss.str();
return false;
}

bool OSDMonitor::erasure_code_profile_in_use(const map<int64_t, pg_pool_t> &pools,
const string &profile,
ostream &ss)
{
bool found = false;
for (map<int64_t, pg_pool_t>::const_iterator p = pools.begin();
p != pools.end();
++p) {
if (p->second.erasure_code_profile == profile) {
ss << osdmap.pool_name[p->first] << " ";
found = true;
}
}
if (found) {
ss << "pool(s) are using the erasure code profile '" << profile << "'";
}
return found;
}

int OSDMonitor::parse_erasure_code_profile(const vector<string> &erasure_code_profile,
map<string,string> *erasure_code_profile_map,
stringstream &ss)
{
int r = get_json_str_map(g_conf->osd_pool_default_erasure_code_profile,
ss,
erasure_code_profile_map);
if (r)
return r;
assert((*erasure_code_profile_map).count("plugin"));
string default_plugin = (*erasure_code_profile_map)["plugin"];
map<string,string> user_map;
for (vector<string>::const_iterator i = erasure_code_profile.begin();
i != erasure_code_profile.end();
++i) {
size_t equal = i->find('=');
if (equal == string::npos) {
user_map[*i] = string();
(*erasure_code_profile_map)[*i] = string();
} else {
const string key = i->substr(0, equal);
equal++;
const string value = i->substr(equal);
user_map[key] = value;
(*erasure_code_profile_map)[key] = value;
}
}

if (user_map.count("plugin") && user_map["plugin"] != default_plugin)
(*erasure_code_profile_map) = user_map;

if ((*erasure_code_profile_map).count("directory") == 0)
(*erasure_code_profile_map)["directory"] =
g_conf->osd_pool_default_erasure_code_directory;

return 0;
}

int OSDMonitor::prepare_pool_size(const unsigned pool_type,
const string &erasure_code_profile,
unsigned *size, unsigned *min_size,
stringstream &ss)
{
int err = 0;
switch (pool_type) {
case pg_pool_t::TYPE_REPLICATED:
*size = g_conf->osd_pool_default_size;
*min_size = g_conf->get_osd_pool_default_min_size();
break;
case pg_pool_t::TYPE_ERASURE:
{
ErasureCodeInterfaceRef erasure_code;
err = get_erasure_code(erasure_code_profile, &erasure_code, ss);
if (err == 0) {
*size = erasure_code->get_chunk_count();
*min_size = erasure_code->get_data_chunk_count();
}
}
break;
default:
ss << "prepare_pool_size: " << pool_type << " is not a known pool type";
err = -EINVAL;
break;
}
return err;
}

int OSDMonitor::prepare_pool_stripe_width(const unsigned pool_type,
const string &erasure_code_profile,
uint32_t *stripe_width,
stringstream &ss)
{
int err = 0;
switch (pool_type) {
case pg_pool_t::TYPE_REPLICATED:
// ignored
break;
case pg_pool_t::TYPE_ERASURE:
{
ErasureCodeInterfaceRef erasure_code;
err = get_erasure_code(erasure_code_profile, &erasure_code, ss);
uint32_t desired_stripe_width = g_conf->osd_pool_erasure_code_stripe_width;
if (err == 0)
*stripe_width = erasure_code->get_data_chunk_count() *
erasure_code->get_chunk_size(desired_stripe_width);
}
break;
default:
ss << "prepare_pool_stripe_width: "
<< pool_type << " is not a known pool type";
err = -EINVAL;
break;
}
return err;
}

int OSDMonitor::prepare_pool_crush_ruleset(const unsigned pool_type,
const string &erasure_code_profile,
const string &ruleset_name,
int *crush_ruleset,
stringstream &ss)
{
if (*crush_ruleset < 0) {
switch (pool_type) {
case pg_pool_t::TYPE_REPLICATED:
{
if (ruleset_name == "") {
//Use default ruleset
*crush_ruleset = osdmap.crush->get_osd_pool_default_crush_replicated_ruleset(g_ceph_context);
if (*crush_ruleset < 0) {
// Errors may happen e.g. if no valid ruleset is available
ss << "No suitable CRUSH ruleset exists";
return *crush_ruleset;
}
} else {
return get_crush_ruleset(ruleset_name, crush_ruleset, ss);
}
}
break;
case pg_pool_t::TYPE_ERASURE:
{
int err = crush_ruleset_create_erasure(ruleset_name,
erasure_code_profile,
crush_ruleset, ss);
switch (err) {
case -EALREADY:
dout(20) << "prepare_pool_crush_ruleset: ruleset "
<< ruleset_name << " try again" << dendl;
case 0:
// need to wait for the crush rule to be proposed before proceeding
err = -EAGAIN;
break;
case -EEXIST:
err = 0;
break;
}
return err;
}
break;
default:
ss << "prepare_pool_crush_ruleset: " << pool_type
<< " is not a known pool type";
return -EINVAL;
break;
}
} else {
if (!osdmap.crush->ruleset_exists(*crush_ruleset)) {
ss << "CRUSH ruleset " << *crush_ruleset << " not found";
return -ENOENT;
}
}

return 0;
}

int OSDMonitor::get_crush_ruleset(const string &ruleset_name,
int *crush_ruleset,
stringstream &ss)
{
int ret;
ret = osdmap.crush->get_rule_id(ruleset_name);
if (ret != -ENOENT) {
// found it, use it
*crush_ruleset = ret;
} else {
CrushWrapper newcrush;
_get_pending_crush(newcrush);

ret = newcrush.get_rule_id(ruleset_name);
if (ret != -ENOENT) {
// found it, wait for it to be proposed
dout(20) << __func__ << ": ruleset " << ruleset_name
<< " try again" << dendl;
return -EAGAIN;
} else {
//Cannot find it , return error
ss << "specified ruleset " << ruleset_name << " doesn't exist";
return ret;
}
}
return 0;
}

/**
* @param name The name of the new pool
* @param auid The auid of the pool owner. Can be -1
* @param crush_ruleset The crush rule to use. If <0, will use the system default
* @param crush_ruleset_name The crush rule to use, if crush_rulset <0
* @param pg_num The pg_num to use. If set to 0, will use the system default
* @param pgp_num The pgp_num to use. If set to 0, will use the system default
* @param erasure_code_profile The profile name in OSDMap to be used for erasure code
* @param pool_type TYPE_ERASURE, TYPE_REP or TYPE_RAID4
* @param expected_num_objects expected number of objects on the pool
* @param ss human readable error message, if any.
*
* @return 0 on success, negative errno on failure.
*/
int OSDMonitor::prepare_new_pool(string& name, uint64_t auid,
int crush_ruleset,
const string &crush_ruleset_name,
unsigned pg_num, unsigned pgp_num,
const string &erasure_code_profile,
const unsigned pool_type,
const uint64_t expected_num_objects,
stringstream &ss)
{
if (name.length() == 0)
return -EINVAL;
int r;
r = prepare_pool_crush_ruleset(pool_type, erasure_code_profile,
crush_ruleset_name, &crush_ruleset, ss);
if (r)
return r;
unsigned size, min_size;
r = prepare_pool_size(pool_type, erasure_code_profile, &size, &min_size, ss);
if (r)
return r;
uint32_t stripe_width = 0;
r = prepare_pool_stripe_width(pool_type, erasure_code_profile, &stripe_width, ss);
if (r)
return r;

for (map<int64_t,string>::iterator p = pending_inc.new_pool_names.begin();
p != pending_inc.new_pool_names.end();
++p) {
if (p->second == name)
return 0;
}

if (-1 == pending_inc.new_pool_max)
pending_inc.new_pool_max = osdmap.pool_max;
int64_t pool = ++pending_inc.new_pool_max;
pg_pool_t empty;
pg_pool_t *pi = pending_inc.get_new_pool(pool, &empty);
pi->type = pool_type;
pi->flags = g_conf->osd_pool_default_flags;
if (g_conf->osd_pool_default_flag_hashpspool)
pi->set_flag(pg_pool_t::FLAG_HASHPSPOOL);
if (g_conf->osd_pool_default_flag_nodelete)
pi->set_flag(pg_pool_t::FLAG_NODELETE);
if (g_conf->osd_pool_default_flag_nopgchange)
pi->set_flag(pg_pool_t::FLAG_NOPGCHANGE);
if (g_conf->osd_pool_default_flag_nosizechange)
pi->set_flag(pg_pool_t::FLAG_NOSIZECHANGE);

pi->size = size;
pi->min_size = min_size;
pi->crush_ruleset = crush_ruleset;
pi->expected_num_objects = expected_num_objects;
pi->object_hash = CEPH_STR_HASH_RJENKINS;
pi->set_pg_num(pg_num ? pg_num : g_conf->osd_pool_default_pg_num);
pi->set_pgp_num(pgp_num ? pgp_num : g_conf->osd_pool_default_pgp_num);
pi->last_change = pending_inc.epoch;
pi->auid = auid;
pi->erasure_code_profile = erasure_code_profile;
pi->stripe_width = stripe_width;
pi->cache_target_dirty_ratio_micro =
g_conf->osd_pool_default_cache_target_dirty_ratio * 1000000;
pi->cache_target_full_ratio_micro =
g_conf->osd_pool_default_cache_target_full_ratio * 1000000;
pi->cache_min_flush_age = g_conf->osd_pool_default_cache_min_flush_age;
pi->cache_min_evict_age = g_conf->osd_pool_default_cache_min_evict_age;
pending_inc.new_pool_names[pool] = name;
return 0;
}

bool OSDMonitor::prepare_set_flag(MMonCommand *m, int flag)
{
ostringstream ss;
if (pending_inc.new_flags < 0)
pending_inc.new_flags = osdmap.get_flags();
pending_inc.new_flags |= flag;
ss << "set " << OSDMap::get_flag_string(flag);
wait_for_finished_proposal(new Monitor::C_Command(mon, m, 0, ss.str(),
get_last_committed() + 1));
return true;
}

bool OSDMonitor::prepare_unset_flag(MMonCommand *m, int flag)
{
ostringstream ss;
if (pending_inc.new_flags < 0)
pending_inc.new_flags = osdmap.get_flags();
pending_inc.new_flags &= ~flag;
ss << "unset " << OSDMap::get_flag_string(flag);
wait_for_finished_proposal(new Monitor::C_Command(mon, m, 0, ss.str(),
get_last_committed() + 1));
return true;
}

int OSDMonitor::parse_osd_id(const char *s, stringstream *pss)
{
// osd.NNN?
if (strncmp(s, "osd.", 4) == 0) {
s += 4;
}

// NNN?
ostringstream ss;
long id = parse_pos_long(s, &ss);
if (id < 0) {
*pss << ss.str();
return id;
}
if (id > 0xffff) {
*pss << "osd id " << id << " is too large";
return -ERANGE;
}
return id;
}


/**
* Special setter for crash_replay_interval on a pool. Equivalent to
* using prepare_command_pool_set, but in a form convenient for use
* from MDSMonitor rather than from an administrative command.
*/
int OSDMonitor::set_crash_replay_interval(const int64_t pool_id, const uint32_t cri)
{
pg_pool_t p;
if (pending_inc.new_pools.count(pool_id)) {
p = pending_inc.new_pools[pool_id];
} else {
const pg_pool_t *p_ptr = osdmap.get_pg_pool(pool_id);
if (p_ptr == NULL) {
return -ENOENT;
} else {
p = *p_ptr;
}
}

dout(10) << "Set pool " << pool_id << " crash_replay_interval=" << cri << dendl;
p.crash_replay_interval = cri;
p.last_change = pending_inc.epoch;
pending_inc.new_pools[pool_id] = p;

return 0;
}


int OSDMonitor::prepare_command_pool_set(map<string,cmd_vartype> &cmdmap,
stringstream& ss)
{
string poolstr;
cmd_getval(g_ceph_context, cmdmap, "pool", poolstr);
int64_t pool = osdmap.lookup_pg_pool_name(poolstr.c_str());
if (pool < 0) {
ss << "unrecognized pool '" << poolstr << "'";
return -ENOENT;
}
string var;
cmd_getval(g_ceph_context, cmdmap, "var", var);

pg_pool_t p = *osdmap.get_pg_pool(pool);
if (pending_inc.new_pools.count(pool))
p = pending_inc.new_pools[pool];

// accept val as a json string in the normal case (current
// generation monitor). parse out int or float values from the
// string as needed. however, if it is not a string, try to pull
// out an int, in case an older monitor with an older json schema is
// forwarding a request.
string val;
string interr, floaterr;
int64_t n = 0;
double f = 0;
int64_t uf = 0; // micro-f
if (!cmd_getval(g_ceph_context, cmdmap, "val", val)) {
// wasn't a string; maybe an older mon forwarded json with an int?
if (!cmd_getval(g_ceph_context, cmdmap, "val", n))
return -EINVAL; // no value!
} else {
// we got a string. see if it contains an int.
n = strict_strtoll(val.c_str(), 10, &interr);
// or a float
f = strict_strtod(val.c_str(), &floaterr);
uf = llrintl(f * (double)1000000.0);
}

if (!p.is_tier() &&
(var == "hit_set_type" || var == "hit_set_period" ||
var == "hit_set_count" || var == "hit_set_fpp" ||
var == "target_max_objects" || var == "target_max_bytes" ||
var == "cache_target_full_ratio" || var == "cache_target_dirty_ratio" ||
var == "cache_min_flush_age" || var == "cache_min_evict_age")) {
ss << "pool '" << poolstr << "' is not a tier pool: variable not applicable";
return -EACCES;
}

if (var == "size") {
if (p.has_flag(pg_pool_t::FLAG_NOSIZECHANGE)) {
ss << "pool size change is disabled; you must unset nosizechange flag for the pool first";
return -EPERM;
}
if (p.type == pg_pool_t::TYPE_ERASURE) {
ss << "can not change the size of an erasure-coded pool";
return -ENOTSUP;
}
if (interr.length()) {
ss << "error parsing integer value '" << val << "': " << interr;
return -EINVAL;
}
if (n <= 0 || n > 10) {
ss << "pool size must be between 1 and 10";
return -EINVAL;
}
p.size = n;
if (n < p.min_size)
p.min_size = n;
} else if (var == "min_size") {
if (p.has_flag(pg_pool_t::FLAG_NOSIZECHANGE)) {
ss << "pool min size change is disabled; you must unset nosizechange flag for the pool first";
return -EPERM;
}
if (interr.length()) {
ss << "error parsing integer value '" << val << "': " << interr;
return -EINVAL;
}

if (p.type != pg_pool_t::TYPE_ERASURE) {
if (n < 1 || n > p.size) {
ss << "pool min_size must be between 1 and " << (int)p.size;
return -EINVAL;
}
} else {
ErasureCodeInterfaceRef erasure_code;
int k;
stringstream tmp;
int err = get_erasure_code(p.erasure_code_profile, &erasure_code, tmp);
if (err == 0) {
k = erasure_code->get_data_chunk_count();
} else {
ss << __func__ << " get_erasure_code failed: " << tmp;
return err;;
}

if (n < k || n > p.size) {
ss << "pool min_size must be between " << k << " and " << (int)p.size;
return -EINVAL;
}
}
p.min_size = n;
} else if (var == "auid") {
if (interr.length()) {
ss << "error parsing integer value '" << val << "': " << interr;
return -EINVAL;
}
p.auid = n;
} else if (var == "crash_replay_interval") {
if (interr.length()) {
ss << "error parsing integer value '" << val << "': " << interr;
return -EINVAL;
}
p.crash_replay_interval = n;
} else if (var == "pg_num") {
if (p.has_flag(pg_pool_t::FLAG_NOPGCHANGE)) {
ss << "pool pg_num change is disabled; you must unset nopgchange flag for the pool first";
return -EPERM;
}
if (interr.length()) {
ss << "error parsing integer value '" << val << "': " << interr;
return -EINVAL;
}
if (n <= (int)p.get_pg_num()) {
ss << "specified pg_num " << n << " <= current " << p.get_pg_num();
if (n < (int)p.get_pg_num())
return -EEXIST;
return 0;
}
string force;
cmd_getval(g_ceph_context,cmdmap, "force", force);
if (p.cache_mode != pg_pool_t::CACHEMODE_NONE &&
force != "--yes-i-really-mean-it") {
ss << "splits in cache pools must be followed by scrubs and leave sufficient free space to avoid overfilling. use --yes-i-really-mean-it to force.";
return -EPERM;
}
int expected_osds = MAX(1, MIN(p.get_pg_num(), osdmap.get_num_osds()));
int64_t new_pgs = n - p.get_pg_num();
int64_t pgs_per_osd = new_pgs / expected_osds;
if (pgs_per_osd > g_conf->mon_osd_max_split_count) {
ss << "specified pg_num " << n << " is too large (creating "
<< new_pgs << " new PGs on ~" << expected_osds
<< " OSDs exceeds per-OSD max of " << g_conf->mon_osd_max_split_count
<< ')';
return -E2BIG;
}
for(set<pg_t>::iterator i = mon->pgmon()->pg_map.creating_pgs.begin();
i != mon->pgmon()->pg_map.creating_pgs.end();
++i) {
if (i->m_pool == static_cast<uint64_t>(pool)) {
ss << "currently creating pgs, wait";
return -EBUSY;
}
}
p.set_pg_num(n);
} else if (var == "pgp_num") {
if (p.has_flag(pg_pool_t::FLAG_NOPGCHANGE)) {
ss << "pool pgp_num change is disabled; you must unset nopgchange flag for the pool first";
return -EPERM;
}
if (interr.length()) {
ss << "error parsing integer value '" << val << "': " << interr;
return -EINVAL;
}
if (n <= 0) {
ss << "specified pgp_num must > 0, but you set to " << n;
return -EINVAL;
}
if (n > (int)p.get_pg_num()) {
ss << "specified pgp_num " << n << " > pg_num " << p.get_pg_num();
return -EINVAL;
}
for(set<pg_t>::iterator i = mon->pgmon()->pg_map.creating_pgs.begin();
i != mon->pgmon()->pg_map.creating_pgs.end();
++i) {
if (i->m_pool == static_cast<uint64_t>(pool)) {
ss << "currently creating pgs, wait";
return -EBUSY;
}
}
p.set_pgp_num(n);
} else if (var == "crush_ruleset") {
if (interr.length()) {
ss << "error parsing integer value '" << val << "': " << interr;
return -EINVAL;
}
if (!osdmap.crush->ruleset_exists(n)) {
ss << "crush ruleset " << n << " does not exist";
return -ENOENT;
}
p.crush_ruleset = n;
} else if (var == "hashpspool" || var == "nodelete" || var == "nopgchange" ||
var == "nosizechange") {
uint64_t flag = pg_pool_t::get_flag_by_name(var);
// make sure we only compare against 'n' if we didn't receive a string
if (val == "true" || (interr.empty() && n == 1)) {
p.set_flag(flag);
} else if (val == "false" || (interr.empty() && n == 0)) {
p.unset_flag(flag);
} else {
ss << "expecting value 'true', 'false', '0', or '1'";
return -EINVAL;
}
} else if (var == "hit_set_type") {
if (val == "none")
p.hit_set_params = HitSet::Params();
else {
int err = check_cluster_features(CEPH_FEATURE_OSD_CACHEPOOL, ss);
if (err)
return err;
if (val == "bloom") {
BloomHitSet::Params *bsp = new BloomHitSet::Params;
bsp->set_fpp(g_conf->osd_pool_default_hit_set_bloom_fpp);
p.hit_set_params = HitSet::Params(bsp);
} else if (val == "explicit_hash")
p.hit_set_params = HitSet::Params(new ExplicitHashHitSet::Params);
else if (val == "explicit_object")
p.hit_set_params = HitSet::Params(new ExplicitObjectHitSet::Params);
else {
ss << "unrecognized hit_set type '" << val << "'";
return -EINVAL;
}
}
} else if (var == "hit_set_period") {
if (interr.length()) {
ss << "error parsing integer value '" << val << "': " << interr;
return -EINVAL;
}
p.hit_set_period = n;
} else if (var == "hit_set_count") {

if (interr.length()) {
ss << "error parsing integer value '" << val << "': " << interr;
return -EINVAL;
}
p.hit_set_count = n;
} else if (var == "hit_set_fpp") {
if (floaterr.length()) {
ss << "error parsing floating point value '" << val << "': " << floaterr;
return -EINVAL;
}
if (p.hit_set_params.get_type() != HitSet::TYPE_BLOOM) {
ss << "hit set is not of type Bloom; invalid to set a false positive rate!";
return -EINVAL;
}
BloomHitSet::Params *bloomp = static_cast<BloomHitSet::Params*>(p.hit_set_params.impl.get());
bloomp->set_fpp(f);
} else if (var == "debug_fake_ec_pool") {
if (val == "true" || (interr.empty() && n == 1)) {
p.flags |= pg_pool_t::FLAG_DEBUG_FAKE_EC_POOL;
}
} else if (var == "target_max_objects") {
if (interr.length()) {
ss << "error parsing int '" << val << "': " << interr;
return -EINVAL;
}
p.target_max_objects = n;
} else if (var == "target_max_bytes") {
if (interr.length()) {
ss << "error parsing int '" << val << "': " << interr;
return -EINVAL;
}
p.target_max_bytes = n;
} else if (var == "cache_target_dirty_ratio") {
if (floaterr.length()) {
ss << "error parsing float '" << val << "': " << floaterr;
return -EINVAL;
}
if (f < 0 || f > 1.0) {
ss << "value must be in the range 0..1";
return -ERANGE;
}
p.cache_target_dirty_ratio_micro = uf;
} else if (var == "cache_target_full_ratio") {
if (floaterr.length()) {
ss << "error parsing float '" << val << "': " << floaterr;
return -EINVAL;
}
if (f < 0 || f > 1.0) {
ss << "value must be in the range 0..1";
return -ERANGE;
}
p.cache_target_full_ratio_micro = uf;
} else if (var == "cache_min_flush_age") {
if (interr.length()) {
ss << "error parsing int '" << val << "': " << interr;
return -EINVAL;
}
p.cache_min_flush_age = n;
} else if (var == "cache_min_evict_age") {
if (interr.length()) {
ss << "error parsing int '" << val << "': " << interr;
return -EINVAL;
}
p.cache_min_evict_age = n;
} else if (var == "min_read_recency_for_promote") {
if (interr.length()) {
ss << "error parsing integer value '" << val << "': " << interr;
return -EINVAL;
}
p.min_read_recency_for_promote = n;
} else if (var == "write_fadvise_dontneed") {
if (val == "true" || (interr.empty() && n == 1)) {
p.flags |= pg_pool_t::FLAG_WRITE_FADVISE_DONTNEED;
} else if (val == "false" || (interr.empty() && n == 0)) {
p.flags &= ~pg_pool_t::FLAG_WRITE_FADVISE_DONTNEED;
} else {
ss << "expecting value 'true', 'false', '0', or '1'";
return -EINVAL;
}
} else {
ss << "unrecognized variable '" << var << "'";
return -EINVAL;
}
ss << "set pool " << pool << " " << var << " to " << val;
p.last_change = pending_inc.epoch;
pending_inc.new_pools[pool] = p;
return 0;
}

bool OSDMonitor::prepare_command(MMonCommand *m)
{
stringstream ss;
map<string, cmd_vartype> cmdmap;
if (!cmdmap_from_json(m->cmd, &cmdmap, ss)) {
string rs = ss.str();
mon->reply_command(m, -EINVAL, rs, get_last_committed());
return true;
}

MonSession *session = m->get_session();
if (!session) {
mon->reply_command(m, -EACCES, "access denied", get_last_committed());
return true;
}

return prepare_command_impl(m, cmdmap);
}

bool OSDMonitor::prepare_command_impl(MMonCommand *m,
map<string,cmd_vartype> &cmdmap)
{
bool ret = false;
stringstream ss;
string rs;
bufferlist rdata;
int err = 0;

string format;
cmd_getval(g_ceph_context, cmdmap, "format", format, string("plain"));
boost::scoped_ptr<Formatter> f(Formatter::create(format));

string prefix;
cmd_getval(g_ceph_context, cmdmap, "prefix", prefix);

int64_t osdid;
string name;
bool osdid_present = cmd_getval(g_ceph_context, cmdmap, "id", osdid);
if (osdid_present) {
ostringstream oss;
oss << "osd." << osdid;
name = oss.str();
}

// Even if there's a pending state with changes that could affect
// a command, considering that said state isn't yet committed, we
// just don't care about those changes if the command currently being
// handled acts as a no-op against the current committed state.
// In a nutshell, we assume this command happens *before*.
//
// Let me make this clearer:
//
// - If we have only one client, and that client issues some
// operation that would conflict with this operation but is
// still on the pending state, then we would be sure that said
// operation wouldn't have returned yet, so the client wouldn't
// issue this operation (unless the client didn't wait for the
// operation to finish, and that would be the client's own fault).
//
// - If we have more than one client, each client will observe
// whatever is the state at the moment of the commit. So, if we
// have two clients, one issuing an unlink and another issuing a
// link, and if the link happens while the unlink is still on the
// pending state, from the link's point-of-view this is a no-op.
// If different clients are issuing conflicting operations and
// they care about that, then the clients should make sure they
// enforce some kind of concurrency mechanism -- from our
// perspective that's what Douglas Adams would call an SEP.
//
// This should be used as a general guideline for most commands handled
// in this function. Adapt as you see fit, but please bear in mind that
// this is the expected behavior.


if (prefix == "osd setcrushmap" ||
(prefix == "osd crush set" && !osdid_present)) {
dout(10) << "prepare_command setting new crush map" << dendl;
bufferlist data(m->get_data());
CrushWrapper crush;
try {
bufferlist::iterator bl(data.begin());
crush.decode(bl);
}
catch (const std::exception &e) {
err = -EINVAL;
ss << "Failed to parse crushmap: " << e.what();
goto reply;
}

if (!validate_crush_against_features(&crush, ss)) {
err = -EINVAL;
goto reply;
}

// sanity check: test some inputs to make sure this map isn't totally broken
dout(10) << " testing map" << dendl;
stringstream ess;
CrushTester tester(crush, ess);
int r = tester.test_with_crushtool(g_conf->crushtool,
g_conf->mon_lease);
if (r < 0) {
if (r == -EINTR) {
ss << "(note: crushtool tests not run because they took too long) ";
} else {
derr << "error on crush map: " << ess.str() << dendl;
ss << "Failed to parse crushmap: " << ess.str();
err = r;
goto reply;
}
}

dout(10) << " result " << ess.str() << dendl;

pending_inc.crush = data;
ss << "set crush map";
goto update;
} else if (prefix == "osd crush add-bucket") {
// os crush add-bucket <name> <type>
string name, typestr;
cmd_getval(g_ceph_context, cmdmap, "name", name);
cmd_getval(g_ceph_context, cmdmap, "type", typestr);

if (!_have_pending_crush() &&
_get_stable_crush().name_exists(name)) {
ss << "bucket '" << name << "' already exists";
goto reply;
}

CrushWrapper newcrush;
_get_pending_crush(newcrush);

if (newcrush.name_exists(name)) {
ss << "bucket '" << name << "' already exists";
goto update;
}
int type = newcrush.get_type_id(typestr);
if (type < 0) {
ss << "type '" << typestr << "' does not exist";
err = -EINVAL;
goto reply;
}
if (type == 0) {
ss << "type '" << typestr << "' is for devices, not buckets";
err = -EINVAL;
goto reply;
}
int bucketno;
err = newcrush.add_bucket(0, 0,
CRUSH_HASH_DEFAULT, type, 0, NULL,
NULL, &bucketno);
if (err < 0) {
ss << "add_bucket error: '" << cpp_strerror(err) << "'";
goto reply;
}
err = newcrush.set_item_name(bucketno, name);
if (err < 0) {
ss << "error setting bucket name to '" << name << "'";
goto reply;
}

pending_inc.crush.clear();
newcrush.encode(pending_inc.crush);
ss << "added bucket " << name << " type " << typestr
<< " to crush map";
goto update;
} else if (prefix == "osd crush rename-bucket") {
string srcname, dstname;
cmd_getval(g_ceph_context, cmdmap, "srcname", srcname);
cmd_getval(g_ceph_context, cmdmap, "dstname", dstname);

err = crush_rename_bucket(srcname, dstname, &ss);
if (err == -EALREADY) // equivalent to success for idempotency
err = 0;
if (err)
goto reply;
else
goto update;
} else if (osdid_present &&
(prefix == "osd crush set" || prefix == "osd crush add")) {
// <OsdName> is 'osd.<id>' or '<id>', passed as int64_t id
// osd crush set <OsdName> <weight> <loc1> [<loc2> ...]
// osd crush add <OsdName> <weight> <loc1> [<loc2> ...]

if (!osdmap.exists(osdid)) {
err = -ENOENT;
ss << name << " does not exist. create it before updating the crush map";
goto reply;
}

double weight;
if (!cmd_getval(g_ceph_context, cmdmap, "weight", weight)) {
ss << "unable to parse weight value '"
<< cmd_vartype_stringify(cmdmap["weight"]) << "'";
err = -EINVAL;
goto reply;
}

string args;
vector<string> argvec;
cmd_getval(g_ceph_context, cmdmap, "args", argvec);
map<string,string> loc;
CrushWrapper::parse_loc_map(argvec, &loc);

if (prefix == "osd crush set"
&& !_get_stable_crush().item_exists(osdid)) {
err = -ENOENT;
ss << "unable to set item id " << osdid << " name '" << name
<< "' weight " << weight << " at location " << loc
<< ": does not exist";
goto reply;
}

dout(5) << "adding/updating crush item id " << osdid << " name '"
<< name << "' weight " << weight << " at location "
<< loc << dendl;
CrushWrapper newcrush;
_get_pending_crush(newcrush);

string action;
if (prefix == "osd crush set" ||
newcrush.check_item_loc(g_ceph_context, osdid, loc, (int *)NULL)) {
action = "set";
err = newcrush.update_item(g_ceph_context, osdid, weight, name, loc);
} else {
action = "add";
err = newcrush.insert_item(g_ceph_context, osdid, weight, name, loc);
if (err == 0)
err = 1;
}

if (err < 0)
goto reply;

if (err == 0 && !_have_pending_crush()) {
ss << action << " item id " << osdid << " name '" << name << "' weight "
<< weight << " at location " << loc << ": no change";
goto reply;
}

pending_inc.crush.clear();
newcrush.encode(pending_inc.crush);
ss << action << " item id " << osdid << " name '" << name << "' weight "
<< weight << " at location " << loc << " to crush map";
getline(ss, rs);
wait_for_finished_proposal(new Monitor::C_Command(mon, m, 0, rs,
get_last_committed() + 1));
return true;

} else if (prefix == "osd crush create-or-move") {
do {
// osd crush create-or-move <OsdName> <initial_weight> <loc1> [<loc2> ...]
if (!osdmap.exists(osdid)) {
err = -ENOENT;
ss << name << " does not exist. create it before updating the crush map";
goto reply;
}

double weight;
if (!cmd_getval(g_ceph_context, cmdmap, "weight", weight)) {
ss << "unable to parse weight value '"
<< cmd_vartype_stringify(cmdmap["weight"]) << "'";
err = -EINVAL;
goto reply;
}

string args;
vector<string> argvec;
cmd_getval(g_ceph_context, cmdmap, "args", argvec);
map<string,string> loc;
CrushWrapper::parse_loc_map(argvec, &loc);

dout(0) << "create-or-move crush item name '" << name << "' initial_weight " << weight
<< " at location " << loc << dendl;

CrushWrapper newcrush;
_get_pending_crush(newcrush);

err = newcrush.create_or_move_item(g_ceph_context, osdid, weight, name, loc);
if (err == 0) {
ss << "create-or-move updated item name '" << name << "' weight " << weight
<< " at location " << loc << " to crush map";
break;
}
if (err > 0) {
pending_inc.crush.clear();
newcrush.encode(pending_inc.crush);
ss << "create-or-move updating item name '" << name << "' weight " << weight
<< " at location " << loc << " to crush map";
getline(ss, rs);
wait_for_finished_proposal(new Monitor::C_Command(mon, m, 0, rs,
get_last_committed() + 1));
return true;
}
} while (false);

} else if (prefix == "osd crush move") {
do {
// osd crush move <name> <loc1> [<loc2> ...]

string args;
vector<string> argvec;
cmd_getval(g_ceph_context, cmdmap, "name", name);
cmd_getval(g_ceph_context, cmdmap, "args", argvec);
map<string,string> loc;
CrushWrapper::parse_loc_map(argvec, &loc);

dout(0) << "moving crush item name '" << name << "' to location " << loc << dendl;
CrushWrapper newcrush;
_get_pending_crush(newcrush);

if (!newcrush.name_exists(name)) {
err = -ENOENT;
ss << "item " << name << " does not exist";
break;
}
int id = newcrush.get_item_id(name);

if (!newcrush.check_item_loc(g_ceph_context, id, loc, (int *)NULL)) {
err = newcrush.move_bucket(g_ceph_context, id, loc);
if (err >= 0) {
ss << "moved item id " << id << " name '" << name << "' to location " << loc << " in crush map";
pending_inc.crush.clear();
newcrush.encode(pending_inc.crush);
getline(ss, rs);
wait_for_finished_proposal(new Monitor::C_Command(mon, m, 0, rs,
get_last_committed() + 1));
return true;
}
} else {
ss << "no need to move item id " << id << " name '" << name << "' to location " << loc << " in crush map";
err = 0;
}
} while (false);

} else if (prefix == "osd crush link") {
// osd crush link <name> <loc1> [<loc2> ...]
string name;
cmd_getval(g_ceph_context, cmdmap, "name", name);
vector<string> argvec;
cmd_getval(g_ceph_context, cmdmap, "args", argvec);
map<string,string> loc;
CrushWrapper::parse_loc_map(argvec, &loc);

// Need an explicit check for name_exists because get_item_id returns
// 0 on unfound.
int id = osdmap.crush->get_item_id(name);
if (!osdmap.crush->name_exists(name)) {
err = -ENOENT;
ss << "item " << name << " does not exist";
goto reply;
} else {
dout(5) << "resolved crush name '" << name << "' to id " << id << dendl;
}
if (osdmap.crush->check_item_loc(g_ceph_context, id, loc, (int*) NULL)) {
ss << "no need to move item id " << id << " name '" << name
<< "' to location " << loc << " in crush map";
err = 0;
goto reply;
}

dout(5) << "linking crush item name '" << name << "' at location " << loc << dendl;
CrushWrapper newcrush;
_get_pending_crush(newcrush);

if (!newcrush.name_exists(name)) {
err = -ENOENT;
ss << "item " << name << " does not exist";
} else {
int id = newcrush.get_item_id(name);
if (!newcrush.check_item_loc(g_ceph_context, id, loc, (int *)NULL)) {
err = newcrush.link_bucket(g_ceph_context, id, loc);
if (err >= 0) {
ss << "linked item id " << id << " name '" << name
<< "' to location " << loc << " in crush map";
pending_inc.crush.clear();
newcrush.encode(pending_inc.crush);
} else {
ss << "cannot link item id " << id << " name '" << name
<< "' to location " << loc;
}
} else {
ss << "no need to move item id " << id << " name '" << name
<< "' to location " << loc << " in crush map";
err = 0;
}
}
wait_for_finished_proposal(new Monitor::C_Command(mon, m, err, ss.str(),
get_last_committed() + 1));
return true;
} else if (prefix == "osd crush rm" ||
prefix == "osd crush remove" ||
prefix == "osd crush unlink") {
do {
// osd crush rm <id> [ancestor]
CrushWrapper newcrush;
_get_pending_crush(newcrush);

string name;
cmd_getval(g_ceph_context, cmdmap, "name", name);

if (!osdmap.crush->name_exists(name)) {
err = 0;
ss << "device '" << name << "' does not appear in the crush map";
break;
}
if (!newcrush.name_exists(name)) {
err = 0;
ss << "device '" << name << "' does not appear in the crush map";
getline(ss, rs);
wait_for_finished_proposal(new Monitor::C_Command(mon, m, 0, rs,
get_last_committed() + 1));
return true;
}
int id = newcrush.get_item_id(name);
bool unlink_only = prefix == "osd crush unlink";
string ancestor_str;
if (cmd_getval(g_ceph_context, cmdmap, "ancestor", ancestor_str)) {
if (!newcrush.name_exists(ancestor_str)) {
err = -ENOENT;
ss << "ancestor item '" << ancestor_str
<< "' does not appear in the crush map";
break;
}
int ancestor = newcrush.get_item_id(ancestor_str);
err = newcrush.remove_item_under(g_ceph_context, id, ancestor,
unlink_only);
} else {
err = newcrush.remove_item(g_ceph_context, id, unlink_only);
}
if (err == -ENOENT) {
ss << "item " << id << " does not appear in that position";
err = 0;
break;
}
if (err == 0) {
pending_inc.crush.clear();
newcrush.encode(pending_inc.crush);
ss << "removed item id " << id << " name '" << name << "' from crush map";
getline(ss, rs);
wait_for_finished_proposal(new Monitor::C_Command(mon, m, 0, rs,
get_last_committed() + 1));
return true;
}
} while (false);

} else if (prefix == "osd crush reweight-all") {
// osd crush reweight <name> <weight>
CrushWrapper newcrush;
_get_pending_crush(newcrush);

newcrush.reweight(g_ceph_context);
pending_inc.crush.clear();
newcrush.encode(pending_inc.crush);
ss << "reweighted crush hierarchy";
getline(ss, rs);
wait_for_finished_proposal(new Monitor::C_Command(mon, m, 0, rs,
get_last_committed() + 1));
return true;
} else if (prefix == "osd crush reweight") {
// osd crush reweight <name> <weight>
CrushWrapper newcrush;
_get_pending_crush(newcrush);

string name;
cmd_getval(g_ceph_context, cmdmap, "name", name);
if (!newcrush.name_exists(name)) {
err = -ENOENT;
ss << "device '" << name << "' does not appear in the crush map";
goto reply;
}

int id = newcrush.get_item_id(name);
if (id < 0) {
ss << "device '" << name << "' is not a leaf in the crush map";
err = -EINVAL;
goto reply;
}
double w;
if (!cmd_getval(g_ceph_context, cmdmap, "weight", w)) {
ss << "unable to parse weight value '"
<< cmd_vartype_stringify(cmdmap["weight"]) << "'";
err = -EINVAL;
goto reply;
}

err = newcrush.adjust_item_weightf(g_ceph_context, id, w);
if (err < 0)
goto reply;
pending_inc.crush.clear();
newcrush.encode(pending_inc.crush);
ss << "reweighted item id " << id << " name '" << name << "' to " << w
<< " in crush map";
getline(ss, rs);
wait_for_finished_proposal(new Monitor::C_Command(mon, m, 0, rs,
get_last_committed() + 1));
return true;
} else if (prefix == "osd crush reweight-subtree") {
// osd crush reweight <name> <weight>
CrushWrapper newcrush;
_get_pending_crush(newcrush);

string name;
cmd_getval(g_ceph_context, cmdmap, "name", name);
if (!newcrush.name_exists(name)) {
err = -ENOENT;
ss << "device '" << name << "' does not appear in the crush map";
goto reply;
}

int id = newcrush.get_item_id(name);
if (id >= 0) {
ss << "device '" << name << "' is not a subtree in the crush map";
err = -EINVAL;
goto reply;
}
double w;
if (!cmd_getval(g_ceph_context, cmdmap, "weight", w)) {
ss << "unable to parse weight value '"
<< cmd_vartype_stringify(cmdmap["weight"]) << "'";
err = -EINVAL;
goto reply;
}

err = newcrush.adjust_subtree_weightf(g_ceph_context, id, w);
if (err < 0)
goto reply;
pending_inc.crush.clear();
newcrush.encode(pending_inc.crush);
ss << "reweighted subtree id " << id << " name '" << name << "' to " << w
<< " in crush map";
getline(ss, rs);
wait_for_finished_proposal(new Monitor::C_Command(mon, m, 0, rs,
get_last_committed() + 1));
return true;
} else if (prefix == "osd crush tunables") {
CrushWrapper newcrush;
_get_pending_crush(newcrush);

err = 0;
string profile;
cmd_getval(g_ceph_context, cmdmap, "profile", profile);
if (profile == "legacy" || profile == "argonaut") {
newcrush.set_tunables_legacy();
} else if (profile == "bobtail") {
newcrush.set_tunables_bobtail();
} else if (profile == "firefly") {
newcrush.set_tunables_firefly();
} else if (profile == "hammer") {
newcrush.set_tunables_hammer();
} else if (profile == "optimal") {
newcrush.set_tunables_optimal();
} else if (profile == "default") {
newcrush.set_tunables_default();
} else {
ss << "unrecognized profile '" << profile << "'";
err = -EINVAL;
goto reply;
}

if (!validate_crush_against_features(&newcrush, ss)) {
err = -EINVAL;
goto reply;
}

pending_inc.crush.clear();
newcrush.encode(pending_inc.crush);
ss << "adjusted tunables profile to " << profile;
getline(ss, rs);
wait_for_finished_proposal(new Monitor::C_Command(mon, m, 0, rs,
get_last_committed() + 1));
return true;
} else if (prefix == "osd crush set-tunable") {
CrushWrapper newcrush;
_get_pending_crush(newcrush);

err = 0;
string tunable;
cmd_getval(g_ceph_context, cmdmap, "tunable", tunable);

int64_t value = -1;
if (!cmd_getval(g_ceph_context, cmdmap, "value", value)) {
err = -EINVAL;
ss << "failed to parse integer value " << cmd_vartype_stringify(cmdmap["value"]);
goto reply;
}

if (tunable == "straw_calc_version") {
if (value < 0 || value > 2) {
ss << "value must be 0 or 1; got " << value;
err = -EINVAL;
goto reply;
}
newcrush.set_straw_calc_version(value);
} else {
ss << "unrecognized tunable '" << tunable << "'";
err = -EINVAL;
goto reply;
}

if (!validate_crush_against_features(&newcrush, ss)) {
err = -EINVAL;
goto reply;
}

pending_inc.crush.clear();
newcrush.encode(pending_inc.crush);
ss << "adjusted tunable " << tunable << " to " << value;
getline(ss, rs);
wait_for_finished_proposal(new Monitor::C_Command(mon, m, 0, rs,
get_last_committed() + 1));
return true;

} else if (prefix == "osd crush rule create-simple") {
string name, root, type, mode;
cmd_getval(g_ceph_context, cmdmap, "name", name);
cmd_getval(g_ceph_context, cmdmap, "root", root);
cmd_getval(g_ceph_context, cmdmap, "type", type);
cmd_getval(g_ceph_context, cmdmap, "mode", mode);
if (mode == "")
mode = "firstn";

if (osdmap.crush->rule_exists(name)) {
// The name is uniquely associated to a ruleid and the ruleset it contains
// From the user point of view, the ruleset is more meaningfull.
ss << "ruleset " << name << " already exists";
err = 0;
goto reply;
}

CrushWrapper newcrush;
_get_pending_crush(newcrush);

if (newcrush.rule_exists(name)) {
// The name is uniquely associated to a ruleid and the ruleset it contains
// From the user point of view, the ruleset is more meaningfull.
ss << "ruleset " << name << " already exists";
err = 0;
} else {
int ruleno = newcrush.add_simple_ruleset(name, root, type, mode,
pg_pool_t::TYPE_REPLICATED, &ss);
if (ruleno < 0) {
err = ruleno;
goto reply;
}

pending_inc.crush.clear();
newcrush.encode(pending_inc.crush);
}
getline(ss, rs);
wait_for_finished_proposal(new Monitor::C_Command(mon, m, 0, rs,
get_last_committed() + 1));
return true;

} else if (prefix == "osd erasure-code-profile rm") {
string name;
cmd_getval(g_ceph_context, cmdmap, "name", name);

if (erasure_code_profile_in_use(pending_inc.new_pools, name, ss))
goto wait;

if (erasure_code_profile_in_use(osdmap.pools, name, ss)) {
err = -EBUSY;
goto reply;
}

if (osdmap.has_erasure_code_profile(name) ||
pending_inc.new_erasure_code_profiles.count(name)) {
if (osdmap.has_erasure_code_profile(name)) {
pending_inc.old_erasure_code_profiles.push_back(name);
} else {
dout(20) << "erasure code profile rm " << name << ": creation canceled" << dendl;
pending_inc.new_erasure_code_profiles.erase(name);
}

getline(ss, rs);
wait_for_finished_proposal(new Monitor::C_Command(mon, m, 0, rs,
get_last_committed() + 1));
return true;
} else {
ss << "erasure-code-profile " << name << " does not exist";
err = 0;
goto reply;
}

} else if (prefix == "osd erasure-code-profile set") {
string name;
cmd_getval(g_ceph_context, cmdmap, "name", name);
vector<string> profile;
cmd_getval(g_ceph_context, cmdmap, "profile", profile);
bool force;
if (profile.size() > 0 && profile.back() == "--force") {
profile.pop_back();
force = true;
} else {
force = false;
}
map<string,string> profile_map;
err = parse_erasure_code_profile(profile, &profile_map, ss);
if (err)
goto reply;
if (profile_map.find("plugin") == profile_map.end()) {
ss << "erasure-code-profile " << profile_map
<< " must contain a plugin entry" << std::endl;
err = -EINVAL;
goto reply;
}
string plugin = profile_map["plugin"];

if (osdmap.has_erasure_code_profile(name)) {
if (osdmap.get_erasure_code_profile(name) == profile_map) {
err = 0;
goto reply;
}
if (!force) {
err = -EPERM;
ss << "will not override erasure code profile " << name
<< " because the existing profile "
<< osdmap.get_erasure_code_profile(name)
<< " is different from the proposed profile "
<< profile_map;
goto reply;
}
}

if (pending_inc.has_erasure_code_profile(name)) {
dout(20) << "erasure code profile " << name << " try again" << dendl;
goto wait;
} else {
if (plugin == "isa" || plugin == "lrc") {
err = check_cluster_features(CEPH_FEATURE_ERASURE_CODE_PLUGINS_V2, ss);
if (err == -EAGAIN)
goto wait;
if (err)
goto reply;
} else if (plugin == "shec") {
if (!g_ceph_context->check_experimental_feature_enabled("shec", &ss)) {
err = -EINVAL;
goto reply;
}
}
dout(20) << "erasure code profile " << name << " set" << dendl;
pending_inc.set_erasure_code_profile(name, profile_map);
}

getline(ss, rs);
wait_for_finished_proposal(new Monitor::C_Command(mon, m, 0, rs,
get_last_committed() + 1));
return true;

} else if (prefix == "osd crush rule create-erasure") {
err = check_cluster_features(CEPH_FEATURE_CRUSH_V2, ss);
if (err == -EAGAIN)
goto wait;
if (err)
goto reply;
string name, poolstr;
cmd_getval(g_ceph_context, cmdmap, "name", name);
string profile;
cmd_getval(g_ceph_context, cmdmap, "profile", profile);
if (profile == "")
profile = "default";
if (profile == "default") {
if (!osdmap.has_erasure_code_profile(profile)) {
if (pending_inc.has_erasure_code_profile(profile)) {
dout(20) << "erasure code profile " << profile << " already pending" << dendl;
goto wait;
}

map<string,string> profile_map;
err = osdmap.get_erasure_code_profile_default(g_ceph_context,
profile_map,
&ss);
if (err)
goto reply;
dout(20) << "erasure code profile " << profile << " set" << dendl;
pending_inc.set_erasure_code_profile(profile, profile_map);
goto wait;
}
}

int ruleset;
err = crush_ruleset_create_erasure(name, profile, &ruleset, ss);
if (err < 0) {
switch(err) {
case -EEXIST: // return immediately
ss << "rule " << name << " already exists";
err = 0;
goto reply;
break;
case -EALREADY: // wait for pending to be proposed
ss << "rule " << name << " already exists";
err = 0;
break;
default: // non recoverable error
goto reply;
break;
}
} else {
ss << "created ruleset " << name << " at " << ruleset;
}

getline(ss, rs);
wait_for_finished_proposal(new Monitor::C_Command(mon, m, 0, rs,
get_last_committed() + 1));
return true;

} else if (prefix == "osd crush rule rm") {
string name;
cmd_getval(g_ceph_context, cmdmap, "name", name);

if (!osdmap.crush->rule_exists(name)) {
ss << "rule " << name << " does not exist";
err = 0;
goto reply;
}

CrushWrapper newcrush;
_get_pending_crush(newcrush);

if (!newcrush.rule_exists(name)) {
ss << "rule " << name << " does not exist";
err = 0;
} else {
int ruleno = newcrush.get_rule_id(name);
assert(ruleno >= 0);

// make sure it is not in use.
// FIXME: this is ok in some situations, but let's not bother with that
// complexity now.
int ruleset = newcrush.get_rule_mask_ruleset(ruleno);
if (osdmap.crush_ruleset_in_use(ruleset)) {
ss << "crush ruleset " << name << " " << ruleset << " is in use";
err = -EBUSY;
goto reply;
}

err = newcrush.remove_rule(ruleno);
if (err < 0) {
goto reply;
}

pending_inc.crush.clear();
newcrush.encode(pending_inc.crush);
}
getline(ss, rs);
wait_for_finished_proposal(new Monitor::C_Command(mon, m, 0, rs,
get_last_committed() + 1));
return true;

} else if (prefix == "osd setmaxosd") {
int64_t newmax;
if (!cmd_getval(g_ceph_context, cmdmap, "newmax", newmax)) {
ss << "unable to parse 'newmax' value '"
<< cmd_vartype_stringify(cmdmap["newmax"]) << "'";
err = -EINVAL;
goto reply;
}

if (newmax > g_conf->mon_max_osd) {
err = -ERANGE;
ss << "cannot set max_osd to " << newmax << " which is > conf.mon_max_osd ("
<< g_conf->mon_max_osd << ")";
goto reply;
}

// Don't allow shrinking OSD number as this will cause data loss
// and may cause kernel crashes.
// Note: setmaxosd sets the maximum OSD number and not the number of OSDs
if (newmax < osdmap.get_max_osd()) {
// Check if the OSDs exist between current max and new value.
// If there are any OSDs exist, then don't allow shrinking number
// of OSDs.
for (int i = newmax; i <= osdmap.get_max_osd(); i++) {
if (osdmap.exists(i)) {
err = -EBUSY;
ss << "cannot shrink max_osd to " << newmax
<< " because osd." << i << " (and possibly others) still in use";
goto reply;
}
}
}

pending_inc.new_max_osd = newmax;
ss << "set new max_osd = " << pending_inc.new_max_osd;
getline(ss, rs);
wait_for_finished_proposal(new Monitor::C_Command(mon, m, 0, rs,
get_last_committed() + 1));
return true;

} else if (prefix == "osd pause") {
return prepare_set_flag(m, CEPH_OSDMAP_PAUSERD | CEPH_OSDMAP_PAUSEWR);

} else if (prefix == "osd unpause") {
return prepare_unset_flag(m, CEPH_OSDMAP_PAUSERD | CEPH_OSDMAP_PAUSEWR);

} else if (prefix == "osd set") {
string key;
cmd_getval(g_ceph_context, cmdmap, "key", key);
if (key == "full")
return prepare_set_flag(m, CEPH_OSDMAP_FULL);
else if (key == "pause")
return prepare_set_flag(m, CEPH_OSDMAP_PAUSERD | CEPH_OSDMAP_PAUSEWR);
else if (key == "noup")
return prepare_set_flag(m, CEPH_OSDMAP_NOUP);
else if (key == "nodown")
return prepare_set_flag(m, CEPH_OSDMAP_NODOWN);
else if (key == "noout")
return prepare_set_flag(m, CEPH_OSDMAP_NOOUT);
else if (key == "noin")
return prepare_set_flag(m, CEPH_OSDMAP_NOIN);
else if (key == "nobackfill")
return prepare_set_flag(m, CEPH_OSDMAP_NOBACKFILL);
else if (key == "norebalance")
return prepare_set_flag(m, CEPH_OSDMAP_NOREBALANCE);
else if (key == "norecover")
return prepare_set_flag(m, CEPH_OSDMAP_NORECOVER);
else if (key == "noscrub")
return prepare_set_flag(m, CEPH_OSDMAP_NOSCRUB);
else if (key == "nodeep-scrub")
return prepare_set_flag(m, CEPH_OSDMAP_NODEEP_SCRUB);
else if (key == "notieragent")
return prepare_set_flag(m, CEPH_OSDMAP_NOTIERAGENT);
else {
ss << "unrecognized flag '" << key << "'";
err = -EINVAL;
}

} else if (prefix == "osd unset") {
string key;
cmd_getval(g_ceph_context, cmdmap, "key", key);
if (key == "full")
return prepare_unset_flag(m, CEPH_OSDMAP_FULL);
else if (key == "pause")
return prepare_unset_flag(m, CEPH_OSDMAP_PAUSERD | CEPH_OSDMAP_PAUSEWR);
else if (key == "noup")
return prepare_unset_flag(m, CEPH_OSDMAP_NOUP);
else if (key == "nodown")
return prepare_unset_flag(m, CEPH_OSDMAP_NODOWN);
else if (key == "noout")
return prepare_unset_flag(m, CEPH_OSDMAP_NOOUT);
else if (key == "noin")
return prepare_unset_flag(m, CEPH_OSDMAP_NOIN);
else if (key == "nobackfill")
return prepare_unset_flag(m, CEPH_OSDMAP_NOBACKFILL);
else if (key == "norebalance")
return prepare_unset_flag(m, CEPH_OSDMAP_NOREBALANCE);
else if (key == "norecover")
return prepare_unset_flag(m, CEPH_OSDMAP_NORECOVER);
else if (key == "noscrub")
return prepare_unset_flag(m, CEPH_OSDMAP_NOSCRUB);
else if (key == "nodeep-scrub")
return prepare_unset_flag(m, CEPH_OSDMAP_NODEEP_SCRUB);
else if (key == "notieragent")
return prepare_unset_flag(m, CEPH_OSDMAP_NOTIERAGENT);
else {
ss << "unrecognized flag '" << key << "'";
err = -EINVAL;
}

} else if (prefix == "osd cluster_snap") {
// ** DISABLE THIS FOR NOW **
ss << "cluster snapshot currently disabled (broken implementation)";
// ** DISABLE THIS FOR NOW **

} else if (prefix == "osd down" ||
prefix == "osd out" ||
prefix == "osd in" ||
prefix == "osd rm") {

bool any = false;

vector<string> idvec;
cmd_getval(g_ceph_context, cmdmap, "ids", idvec);
for (unsigned j = 0; j < idvec.size(); j++) {
long osd = parse_osd_id(idvec[j].c_str(), &ss);
if (osd < 0) {
ss << "invalid osd id" << osd;
err = -EINVAL;
continue;
} else if (!osdmap.exists(osd)) {
ss << "osd." << osd << " does not exist. ";
continue;
}
if (prefix == "osd down") {
if (osdmap.is_down(osd)) {
ss << "osd." << osd << " is already down. ";
} else {
pending_inc.new_state[osd] = CEPH_OSD_UP;
ss << "marked down osd." << osd << ". ";
any = true;
}
} else if (prefix == "osd out") {
if (osdmap.is_out(osd)) {
ss << "osd." << osd << " is already out. ";
} else {
pending_inc.new_weight[osd] = CEPH_OSD_OUT;
ss << "marked out osd." << osd << ". ";
any = true;
}
} else if (prefix == "osd in") {
if (osdmap.is_in(osd)) {
ss << "osd." << osd << " is already in. ";
} else {
pending_inc.new_weight[osd] = CEPH_OSD_IN;
ss << "marked in osd." << osd << ". ";
any = true;
}
} else if (prefix == "osd rm") {
if (osdmap.is_up(osd)) {
if (any)
ss << ", ";
ss << "osd." << osd << " is still up; must be down before removal. ";
err = -EBUSY;
} else {
pending_inc.new_state[osd] = osdmap.get_state(osd);
pending_inc.new_uuid[osd] = uuid_d();
pending_metadata_rm.insert(osd);
if (any) {
ss << ", osd." << osd;
} else {
ss << "removed osd." << osd;
}
any = true;
}
}
}
if (any) {
getline(ss, rs);
wait_for_finished_proposal(new Monitor::C_Command(mon, m, err, rs,
get_last_committed() + 1));
return true;
}
} else if (prefix == "osd pg-temp") {
string pgidstr;
if (!cmd_getval(g_ceph_context, cmdmap, "pgid", pgidstr)) {
ss << "unable to parse 'pgid' value '"
<< cmd_vartype_stringify(cmdmap["pgid"]) << "'";
err = -EINVAL;
goto reply;
}
pg_t pgid;
if (!pgid.parse(pgidstr.c_str())) {
ss << "invalid pgid '" << pgidstr << "'";
err = -EINVAL;
goto reply;
}
PGMap& pg_map = mon->pgmon()->pg_map;
if (!pg_map.pg_stat.count(pgid)) {
ss << "pg " << pgid << " does not exist";
err = -ENOENT;
goto reply;
}

vector<string> id_vec;
vector<int32_t> new_pg_temp;
if (!cmd_getval(g_ceph_context, cmdmap, "id", id_vec)) {
ss << "unable to parse 'id' value(s) '"
<< cmd_vartype_stringify(cmdmap["id"]) << "'";
err = -EINVAL;
goto reply;
}
for (unsigned i = 0; i < id_vec.size(); i++) {
int32_t osd = parse_osd_id(id_vec[i].c_str(), &ss);
if (osd < 0) {
err = -EINVAL;
goto reply;
}
if (!osdmap.exists(osd)) {
ss << "osd." << osd << " does not exist";
err = -ENOENT;
goto reply;
}

new_pg_temp.push_back(osd);
}

pending_inc.new_pg_temp[pgid] = new_pg_temp;
ss << "set " << pgid << " pg_temp mapping to " << new_pg_temp;
goto update;
} else if (prefix == "osd primary-temp") {
string pgidstr;
if (!cmd_getval(g_ceph_context, cmdmap, "pgid", pgidstr)) {
ss << "unable to parse 'pgid' value '"
<< cmd_vartype_stringify(cmdmap["pgid"]) << "'";
err = -EINVAL;
goto reply;
}
pg_t pgid;
if (!pgid.parse(pgidstr.c_str())) {
ss << "invalid pgid '" << pgidstr << "'";
err = -EINVAL;
goto reply;
}
PGMap& pg_map = mon->pgmon()->pg_map;
if (!pg_map.pg_stat.count(pgid)) {
ss << "pg " << pgid << " does not exist";
err = -ENOENT;
goto reply;
}

string id;
int32_t osd;
if (!cmd_getval(g_ceph_context, cmdmap, "id", id)) {
ss << "unable to parse 'id' value '"
<< cmd_vartype_stringify(cmdmap["id"]) << "'";
err = -EINVAL;
goto reply;
}
if (strcmp(id.c_str(), "-1")) {
osd = parse_osd_id(id.c_str(), &ss);
if (osd < 0) {
err = -EINVAL;
goto reply;
}
if (!osdmap.exists(osd)) {
ss << "osd." << osd << " does not exist";
err = -ENOENT;
goto reply;
}
} else {
osd = -1;
}

if (!g_conf->mon_osd_allow_primary_temp) {
ss << "you must enable 'mon osd allow primary temp = true' on the mons before you can set primary_temp mappings. note that this is for developers only: older clients/OSDs will break and there is no feature bit infrastructure in place.";
err = -EPERM;
goto reply;
}

pending_inc.new_primary_temp[pgid] = osd;
ss << "set " << pgid << " primary_temp mapping to " << osd;
goto update;
} else if (prefix == "osd primary-affinity") {
int64_t id;
if (!cmd_getval(g_ceph_context, cmdmap, "id", id)) {
ss << "invalid osd id value '"
<< cmd_vartype_stringify(cmdmap["id"]) << "'";
err = -EINVAL;
goto reply;
}
double w;
if (!cmd_getval(g_ceph_context, cmdmap, "weight", w)) {
ss << "unable to parse 'weight' value '"
<< cmd_vartype_stringify(cmdmap["weight"]) << "'";
err = -EINVAL;
goto reply;
}
long ww = (int)((double)CEPH_OSD_MAX_PRIMARY_AFFINITY*w);
if (ww < 0L) {
ss << "weight must be >= 0";
err = -EINVAL;
goto reply;
}
if (!g_conf->mon_osd_allow_primary_affinity) {
ss << "you must enable 'mon osd allow primary affinity = true' on the mons before you can adjust primary-affinity. note that older clients will no longer be able to communicate with the cluster.";
err = -EPERM;
goto reply;
}
err = check_cluster_features(CEPH_FEATURE_OSD_PRIMARY_AFFINITY, ss);
if (err == -EAGAIN)
goto wait;
if (err < 0)
goto reply;
if (osdmap.exists(id)) {
pending_inc.new_primary_affinity[id] = ww;
ss << "set osd." << id << " primary-affinity to " << w << " (" << ios::hex << ww << ios::dec << ")";
getline(ss, rs);
wait_for_finished_proposal(new Monitor::C_Command(mon, m, 0, rs,
get_last_committed() + 1));
return true;
}
} else if (prefix == "osd reweight") {
int64_t id;
if (!cmd_getval(g_ceph_context, cmdmap, "id", id)) {
ss << "unable to parse osd id value '"
<< cmd_vartype_stringify(cmdmap["id"]) << "'";
err = -EINVAL;
goto reply;
}
double w;
if (!cmd_getval(g_ceph_context, cmdmap, "weight", w)) {
ss << "unable to parse weight value '"
<< cmd_vartype_stringify(cmdmap["weight"]) << "'";
err = -EINVAL;
goto reply;
}
long ww = (int)((double)CEPH_OSD_IN*w);
if (ww < 0L) {
ss << "weight must be >= 0";
err = -EINVAL;
goto reply;
}
if (osdmap.exists(id)) {
pending_inc.new_weight[id] = ww;
ss << "reweighted osd." << id << " to " << w << " (" << ios::hex << ww << ios::dec << ")";
getline(ss, rs);
wait_for_finished_proposal(new Monitor::C_Command(mon, m, 0, rs,
get_last_committed() + 1));
return true;
}

} else if (prefix == "osd lost") {
int64_t id;
if (!cmd_getval(g_ceph_context, cmdmap, "id", id)) {
ss << "unable to parse osd id value '"
<< cmd_vartype_stringify(cmdmap["id"]) << "'";
err = -EINVAL;
goto reply;
}
string sure;
if (!cmd_getval(g_ceph_context, cmdmap, "sure", sure) || sure != "--yes-i-really-mean-it") {
ss << "are you SURE? this might mean real, permanent data loss. pass "
"--yes-i-really-mean-it if you really do.";
err = -EPERM;
goto reply;
} else if (!osdmap.exists(id) || !osdmap.is_down(id)) {
ss << "osd." << id << " is not down or doesn't exist";
} else {
epoch_t e = osdmap.get_info(id).down_at;
pending_inc.new_lost[id] = e;
ss << "marked osd lost in epoch " << e;
getline(ss, rs);
wait_for_finished_proposal(new Monitor::C_Command(mon, m, 0, rs,
get_last_committed() + 1));
return true;
}

} else if (prefix == "osd create") {
int i = -1;

// optional uuid provided?
uuid_d uuid;
string uuidstr;
if (cmd_getval(g_ceph_context, cmdmap, "uuid", uuidstr)) {
if (!uuid.parse(uuidstr.c_str())) {
err = -EINVAL;
goto reply;
}
dout(10) << " osd create got uuid " << uuid << dendl;
i = osdmap.identify_osd(uuid);
if (i >= 0) {
// osd already exists
err = 0;
if (f) {
f->open_object_section("created_osd");
f->dump_int("osdid", i);
f->close_section();
f->flush(rdata);
} else {
ss << i;
rdata.append(ss);
}
goto reply;
}
i = pending_inc.identify_osd(uuid);
if (i >= 0) {
// osd is about to exist
wait_for_finished_proposal(new C_RetryMessage(this, m));
return true;
}
}

// allocate a new id
for (i=0; i < osdmap.get_max_osd(); i++) {
if (!osdmap.exists(i) &&
pending_inc.new_up_client.count(i) == 0 &&
(pending_inc.new_state.count(i) == 0 ||
(pending_inc.new_state[i] & CEPH_OSD_EXISTS) == 0))
goto done;
}

// raise max_osd
if (pending_inc.new_max_osd < 0)
pending_inc.new_max_osd = osdmap.get_max_osd() + 1;
else
pending_inc.new_max_osd++;
i = pending_inc.new_max_osd - 1;

done:
dout(10) << " creating osd." << i << dendl;
pending_inc.new_state[i] |= CEPH_OSD_EXISTS | CEPH_OSD_NEW;
if (!uuid.is_zero())
pending_inc.new_uuid[i] = uuid;
if (f) {
f->open_object_section("created_osd");
f->dump_int("osdid", i);
f->close_section();
f->flush(rdata);
} else {
ss << i;
rdata.append(ss);
}
wait_for_finished_proposal(new Monitor::C_Command(mon, m, 0, rs, rdata,
get_last_committed() + 1));
return true;

} else if (prefix == "osd blacklist") {
string addrstr;
cmd_getval(g_ceph_context, cmdmap, "addr", addrstr);
entity_addr_t addr;
if (!addr.parse(addrstr.c_str(), 0))
ss << "unable to parse address " << addrstr;
else {
string blacklistop;
cmd_getval(g_ceph_context, cmdmap, "blacklistop", blacklistop);
if (blacklistop == "add") {
utime_t expires = ceph_clock_now(g_ceph_context);
double d;
// default one hour
cmd_getval(g_ceph_context, cmdmap, "expire", d, double(60*60));
expires += d;

pending_inc.new_blacklist[addr] = expires;
ss << "blacklisting " << addr << " until " << expires << " (" << d << " sec)";
getline(ss, rs);
wait_for_finished_proposal(new Monitor::C_Command(mon, m, 0, rs,
get_last_committed() + 1));
return true;
} else if (blacklistop == "rm") {
if (osdmap.is_blacklisted(addr) ||
pending_inc.new_blacklist.count(addr)) {
if (osdmap.is_blacklisted(addr))
pending_inc.old_blacklist.push_back(addr);
else
pending_inc.new_blacklist.erase(addr);
ss << "un-blacklisting " << addr;
getline(ss, rs);
wait_for_finished_proposal(new Monitor::C_Command(mon, m, 0, rs,
get_last_committed() + 1));
return true;
}
ss << addr << " isn't blacklisted";
err = 0;
goto reply;
}
}
} else if (prefix == "osd pool mksnap") {
string poolstr;
cmd_getval(g_ceph_context, cmdmap, "pool", poolstr);
int64_t pool = osdmap.lookup_pg_pool_name(poolstr.c_str());
if (pool < 0) {
ss << "unrecognized pool '" << poolstr << "'";
err = -ENOENT;
goto reply;
}
string snapname;
cmd_getval(g_ceph_context, cmdmap, "snap", snapname);
const pg_pool_t *p = osdmap.get_pg_pool(pool);
if (p->is_unmanaged_snaps_mode()) {
ss << "pool " << poolstr << " is in unmanaged snaps mode";
err = -EINVAL;
goto reply;
} else if (p->snap_exists(snapname.c_str())) {
ss << "pool " << poolstr << " snap " << snapname << " already exists";
err = 0;
goto reply;
}
pg_pool_t *pp = 0;
if (pending_inc.new_pools.count(pool))
pp = &pending_inc.new_pools[pool];
if (!pp) {
pp = &pending_inc.new_pools[pool];
*pp = *p;
}
if (pp->snap_exists(snapname.c_str())) {
ss << "pool " << poolstr << " snap " << snapname << " already exists";
} else {
pp->add_snap(snapname.c_str(), ceph_clock_now(g_ceph_context));
pp->set_snap_epoch(pending_inc.epoch);
ss << "created pool " << poolstr << " snap " << snapname;
}
getline(ss, rs);
wait_for_finished_proposal(new Monitor::C_Command(mon, m, 0, rs,
get_last_committed() + 1));
return true;
} else if (prefix == "osd pool rmsnap") {
string poolstr;
cmd_getval(g_ceph_context, cmdmap, "pool", poolstr);
int64_t pool = osdmap.lookup_pg_pool_name(poolstr.c_str());
if (pool < 0) {
ss << "unrecognized pool '" << poolstr << "'";
err = -ENOENT;
goto reply;
}
string snapname;
cmd_getval(g_ceph_context, cmdmap, "snap", snapname);
const pg_pool_t *p = osdmap.get_pg_pool(pool);
if (p->is_unmanaged_snaps_mode()) {
ss << "pool " << poolstr << " is in unmanaged snaps mode";
err = -EINVAL;
goto reply;
} else if (!p->snap_exists(snapname.c_str())) {
ss << "pool " << poolstr << " snap " << snapname << " does not exist";
err = 0;
goto reply;
}
pg_pool_t *pp = 0;
if (pending_inc.new_pools.count(pool))
pp = &pending_inc.new_pools[pool];
if (!pp) {
pp = &pending_inc.new_pools[pool];
*pp = *p;
}
snapid_t sn = pp->snap_exists(snapname.c_str());
if (sn) {
pp->remove_snap(sn);
pp->set_snap_epoch(pending_inc.epoch);
ss << "removed pool " << poolstr << " snap " << snapname;
} else {
ss << "already removed pool " << poolstr << " snap " << snapname;
}
getline(ss, rs);
wait_for_finished_proposal(new Monitor::C_Command(mon, m, 0, rs,
get_last_committed() + 1));
return true;
} else if (prefix == "osd pool create") {
int64_t pg_num;
int64_t pgp_num;
cmd_getval(g_ceph_context, cmdmap, "pg_num", pg_num, int64_t(0));
if ((pg_num == 0) || (pg_num > g_conf->mon_max_pool_pg_num)) {
ss << "'pg_num' must be greater than 0 and less than or equal to "
<< g_conf->mon_max_pool_pg_num
<< " (you may adjust 'mon max pool pg num' for higher values)";
err = -ERANGE;
goto reply;
}

cmd_getval(g_ceph_context, cmdmap, "pgp_num", pgp_num, pg_num);
if ((pgp_num == 0) || (pgp_num > pg_num)) {
ss << "'pgp_num' must be greater than 0 and lower or equal than 'pg_num'"
<< ", which in this case is " << pg_num;
err = -ERANGE;
goto reply;
}

string pool_type_str;
cmd_getval(g_ceph_context, cmdmap, "pool_type", pool_type_str);
if (pool_type_str.empty())
pool_type_str = pg_pool_t::get_default_type();

string poolstr;
cmd_getval(g_ceph_context, cmdmap, "pool", poolstr);
int64_t pool_id = osdmap.lookup_pg_pool_name(poolstr);
if (pool_id >= 0) {
const pg_pool_t *p = osdmap.get_pg_pool(pool_id);
if (pool_type_str != p->get_type_name()) {
ss << "pool '" << poolstr << "' cannot change to type " << pool_type_str;
err = -EINVAL;
} else {
ss << "pool '" << poolstr << "' already exists";
err = 0;
}
goto reply;
}

int pool_type;
if (pool_type_str == "replicated") {
pool_type = pg_pool_t::TYPE_REPLICATED;
} else if (pool_type_str == "erasure") {
err = check_cluster_features(CEPH_FEATURE_CRUSH_V2 |
CEPH_FEATURE_OSD_ERASURE_CODES,
ss);
if (err == -EAGAIN)
goto wait;
if (err)
goto reply;
pool_type = pg_pool_t::TYPE_ERASURE;
} else {
ss << "unknown pool type '" << pool_type_str << "'";
err = -EINVAL;
goto reply;
}

bool implicit_ruleset_creation = false;
string ruleset_name;
cmd_getval(g_ceph_context, cmdmap, "ruleset", ruleset_name);
string erasure_code_profile;
cmd_getval(g_ceph_context, cmdmap, "erasure_code_profile", erasure_code_profile);

if (pool_type == pg_pool_t::TYPE_ERASURE) {
if (erasure_code_profile == "")
erasure_code_profile = "default";
//handle the erasure code profile
if (erasure_code_profile == "default") {
if (!osdmap.has_erasure_code_profile(erasure_code_profile)) {
if (pending_inc.has_erasure_code_profile(erasure_code_profile)) {
dout(20) << "erasure code profile " << erasure_code_profile << " already pending" << dendl;
goto wait;
}

map<string,string> profile_map;
err = osdmap.get_erasure_code_profile_default(g_ceph_context,
profile_map,
&ss);
if (err)
goto reply;
dout(20) << "erasure code profile " << erasure_code_profile << " set" << dendl;
pending_inc.set_erasure_code_profile(erasure_code_profile, profile_map);
goto wait;
}
}
if (ruleset_name == "") {
implicit_ruleset_creation = true;
if (erasure_code_profile == "default") {
ruleset_name = "erasure-code";
} else {
dout(1) << "implicitly use ruleset named after the pool: "
<< poolstr << dendl;
ruleset_name = poolstr;
}
}
} else {
//NOTE:for replicated pool,cmd_map will put ruleset_name to erasure_code_profile field
ruleset_name = erasure_code_profile;
}

if (!implicit_ruleset_creation && ruleset_name != "") {
int ruleset;
err = get_crush_ruleset(ruleset_name, &ruleset, ss);
if (err == -EAGAIN) {
wait_for_finished_proposal(new C_RetryMessage(this, m));
return true;
}
if (err)
goto reply;
}

int64_t expected_num_objects;
cmd_getval(g_ceph_context, cmdmap, "expected_num_objects", expected_num_objects, int64_t(0));
if (expected_num_objects < 0) {
ss << "'expected_num_objects' must be non-negative";
err = -EINVAL;
goto reply;
}
err = prepare_new_pool(poolstr, 0, // auid=0 for admin created pool
-1, // default crush rule
ruleset_name,
pg_num, pgp_num,
erasure_code_profile, pool_type,
(uint64_t)expected_num_objects,
ss);
if (err < 0) {
switch(err) {
case -EEXIST:
ss << "pool '" << poolstr << "' already exists";
break;
case -EAGAIN:
wait_for_finished_proposal(new C_RetryMessage(this, m));
return true;
default:
goto reply;
break;
}
} else {
ss << "pool '" << poolstr << "' created";
}
getline(ss, rs);
wait_for_finished_proposal(new Monitor::C_Command(mon, m, 0, rs,
get_last_committed() + 1));
return true;

} else if (prefix == "osd pool delete") {
// osd pool delete <poolname> <poolname again> --yes-i-really-really-mean-it
string poolstr, poolstr2, sure;
cmd_getval(g_ceph_context, cmdmap, "pool", poolstr);
cmd_getval(g_ceph_context, cmdmap, "pool2", poolstr2);
cmd_getval(g_ceph_context, cmdmap, "sure", sure);
int64_t pool = osdmap.lookup_pg_pool_name(poolstr.c_str());
if (pool < 0) {
ss << "pool '" << poolstr << "' does not exist";
err = 0;
goto reply;
}

if (poolstr2 != poolstr || sure != "--yes-i-really-really-mean-it") {
ss << "WARNING: this will *PERMANENTLY DESTROY* all data stored in pool " << poolstr
<< ". If you are *ABSOLUTELY CERTAIN* that is what you want, pass the pool name *twice*, "
<< "followed by --yes-i-really-really-mean-it.";
err = -EPERM;
goto reply;
}
err = _prepare_remove_pool(pool, &ss);
if (err == -EAGAIN) {
wait_for_finished_proposal(new C_RetryMessage(this, m));
return true;
}
if (err < 0)
goto reply;
goto update;
} else if (prefix == "osd pool rename") {
string srcpoolstr, destpoolstr;
cmd_getval(g_ceph_context, cmdmap, "srcpool", srcpoolstr);
cmd_getval(g_ceph_context, cmdmap, "destpool", destpoolstr);
int64_t pool_src = osdmap.lookup_pg_pool_name(srcpoolstr.c_str());
int64_t pool_dst = osdmap.lookup_pg_pool_name(destpoolstr.c_str());

if (pool_src < 0) {
if (pool_dst >= 0) {
// src pool doesn't exist, dst pool does exist: to ensure idempotency
// of operations, assume this rename succeeded, as it is not changing
// the current state. Make sure we output something understandable
// for whoever is issuing the command, if they are paying attention,
// in case it was not intentional; or to avoid a "wtf?" and a bug
// report in case it was intentional, while expecting a failure.
ss << "pool '" << srcpoolstr << "' does not exist; pool '"
<< destpoolstr << "' does -- assuming successful rename";
err = 0;
} else {
ss << "unrecognized pool '" << srcpoolstr << "'";
err = -ENOENT;
}
goto reply;
} else if (pool_dst >= 0) {
// source pool exists and so does the destination pool
ss << "pool '" << destpoolstr << "' already exists";
err = -EEXIST;
goto reply;
}

int ret = _prepare_rename_pool(pool_src, destpoolstr);
if (ret == 0) {
ss << "pool '" << srcpoolstr << "' renamed to '" << destpoolstr << "'";
} else {
ss << "failed to rename pool '" << srcpoolstr << "' to '" << destpoolstr << "': "
<< cpp_strerror(ret);
}
getline(ss, rs);
wait_for_finished_proposal(new Monitor::C_Command(mon, m, ret, rs,
get_last_committed() + 1));
return true;

} else if (prefix == "osd pool set") {
err = prepare_command_pool_set(cmdmap, ss);
if (err == -EAGAIN)
goto wait;
if (err < 0)
goto reply;

getline(ss, rs);
wait_for_finished_proposal(new Monitor::C_Command(mon, m, 0, rs,
get_last_committed() + 1));
return true;
} else if (prefix == "osd tier add") {
err = check_cluster_features(CEPH_FEATURE_OSD_CACHEPOOL, ss);
if (err == -EAGAIN)
goto wait;
if (err)
goto reply;
string poolstr;
cmd_getval(g_ceph_context, cmdmap, "pool", poolstr);
int64_t pool_id = osdmap.lookup_pg_pool_name(poolstr);
if (pool_id < 0) {
ss << "unrecognized pool '" << poolstr << "'";
err = -ENOENT;
goto reply;
}
string tierpoolstr;
cmd_getval(g_ceph_context, cmdmap, "tierpool", tierpoolstr);
int64_t tierpool_id = osdmap.lookup_pg_pool_name(tierpoolstr);
if (tierpool_id < 0) {
ss << "unrecognized pool '" << tierpoolstr << "'";
err = -ENOENT;
goto reply;
}
const pg_pool_t *p = osdmap.get_pg_pool(pool_id);
assert(p);
const pg_pool_t *tp = osdmap.get_pg_pool(tierpool_id);
assert(tp);

if (!_check_become_tier(tierpool_id, tp, pool_id, p, &err, &ss)) {
goto reply;
}

// make sure new tier is empty
string force_nonempty;
cmd_getval(g_ceph_context, cmdmap, "force_nonempty", force_nonempty);
const pool_stat_t& tier_stats =
mon->pgmon()->pg_map.get_pg_pool_sum_stat(tierpool_id);
if (tier_stats.stats.sum.num_objects != 0 &&
force_nonempty != "--force-nonempty") {
ss << "tier pool '" << tierpoolstr << "' is not empty; --force-nonempty to force";
err = -ENOTEMPTY;
goto reply;
}
// go
pg_pool_t *np = pending_inc.get_new_pool(pool_id, p);
pg_pool_t *ntp = pending_inc.get_new_pool(tierpool_id, tp);
if (np->tiers.count(tierpool_id) || ntp->is_tier()) {
wait_for_finished_proposal(new C_RetryMessage(this, m));
return true;
}
np->tiers.insert(tierpool_id);
np->set_snap_epoch(pending_inc.epoch); // tier will update to our snap info
ntp->tier_of = pool_id;
ss << "pool '" << tierpoolstr << "' is now (or already was) a tier of '" << poolstr << "'";
wait_for_finished_proposal(new Monitor::C_Command(mon, m, 0, ss.str(),
get_last_committed() + 1));
return true;
} else if (prefix == "osd tier remove") {
string poolstr;
cmd_getval(g_ceph_context, cmdmap, "pool", poolstr);
int64_t pool_id = osdmap.lookup_pg_pool_name(poolstr);
if (pool_id < 0) {
ss << "unrecognized pool '" << poolstr << "'";
err = -ENOENT;
goto reply;
}
string tierpoolstr;
cmd_getval(g_ceph_context, cmdmap, "tierpool", tierpoolstr);
int64_t tierpool_id = osdmap.lookup_pg_pool_name(tierpoolstr);
if (tierpool_id < 0) {
ss << "unrecognized pool '" << tierpoolstr << "'";
err = -ENOENT;
goto reply;
}
const pg_pool_t *p = osdmap.get_pg_pool(pool_id);
assert(p);
const pg_pool_t *tp = osdmap.get_pg_pool(tierpool_id);
assert(tp);

if (!_check_remove_tier(pool_id, p, &err, &ss)) {
goto reply;
}

if (p->tiers.count(tierpool_id) == 0) {
ss << "pool '" << tierpoolstr << "' is now (or already was) not a tier of '" << poolstr << "'";
err = 0;
goto reply;
}
if (tp->tier_of != pool_id) {
ss << "tier pool '" << tierpoolstr << "' is a tier of '"
<< osdmap.get_pool_name(tp->tier_of) << "': "
// be scary about it; this is an inconsistency and bells must go off
<< "THIS SHOULD NOT HAVE HAPPENED AT ALL";
err = -EINVAL;
goto reply;
}
if (p->read_tier == tierpool_id) {
ss << "tier pool '" << tierpoolstr << "' is the overlay for '" << poolstr << "'; please remove-overlay first";
err = -EBUSY;
goto reply;
}
// go
pg_pool_t *np = pending_inc.get_new_pool(pool_id, p);
pg_pool_t *ntp = pending_inc.get_new_pool(tierpool_id, tp);
if (np->tiers.count(tierpool_id) == 0 ||
ntp->tier_of != pool_id ||
np->read_tier == tierpool_id) {
wait_for_finished_proposal(new C_RetryMessage(this, m));
return true;
}
np->tiers.erase(tierpool_id);
ntp->clear_tier();
ss << "pool '" << tierpoolstr << "' is now (or already was) not a tier of '" << poolstr << "'";
wait_for_finished_proposal(new Monitor::C_Command(mon, m, 0, ss.str(),
get_last_committed() + 1));
return true;
} else if (prefix == "osd tier set-overlay") {
err = check_cluster_features(CEPH_FEATURE_OSD_CACHEPOOL, ss);
if (err == -EAGAIN)
goto wait;
if (err)
goto reply;
string poolstr;
cmd_getval(g_ceph_context, cmdmap, "pool", poolstr);
int64_t pool_id = osdmap.lookup_pg_pool_name(poolstr);
if (pool_id < 0) {
ss << "unrecognized pool '" << poolstr << "'";
err = -ENOENT;
goto reply;
}
string overlaypoolstr;
cmd_getval(g_ceph_context, cmdmap, "overlaypool", overlaypoolstr);
int64_t overlaypool_id = osdmap.lookup_pg_pool_name(overlaypoolstr);
if (overlaypool_id < 0) {
ss << "unrecognized pool '" << overlaypoolstr << "'";
err = -ENOENT;
goto reply;
}
const pg_pool_t *p = osdmap.get_pg_pool(pool_id);
assert(p);
if (p->tiers.count(overlaypool_id) == 0) {
ss << "tier pool '" << overlaypoolstr << "' is not a tier of '" << poolstr << "'";
err = -EINVAL;
goto reply;
}
if (p->read_tier == overlaypool_id) {
err = 0;
ss << "overlay for '" << poolstr << "' is now (or already was) '" << overlaypoolstr << "'";
goto reply;
}
if (p->has_read_tier()) {
ss << "pool '" << poolstr << "' has overlay '"
<< osdmap.get_pool_name(p->read_tier)
<< "'; please remove-overlay first";
err = -EINVAL;
goto reply;
}

// go
pg_pool_t *np = pending_inc.get_new_pool(pool_id, p);
np->read_tier = overlaypool_id;
np->write_tier = overlaypool_id;
np->last_force_op_resend = pending_inc.epoch;
ss << "overlay for '" << poolstr << "' is now (or already was) '" << overlaypoolstr << "'";
wait_for_finished_proposal(new Monitor::C_Command(mon, m, 0, ss.str(),
get_last_committed() + 1));
return true;
} else if (prefix == "osd tier remove-overlay") {
string poolstr;
cmd_getval(g_ceph_context, cmdmap, "pool", poolstr);
int64_t pool_id = osdmap.lookup_pg_pool_name(poolstr);
if (pool_id < 0) {
ss << "unrecognized pool '" << poolstr << "'";
err = -ENOENT;
goto reply;
}
const pg_pool_t *p = osdmap.get_pg_pool(pool_id);
assert(p);
if (!p->has_read_tier()) {
err = 0;
ss << "there is now (or already was) no overlay for '" << poolstr << "'";
goto reply;
}

if (!_check_remove_tier(pool_id, p, &err, &ss)) {
goto reply;
}

// go
pg_pool_t *np = pending_inc.get_new_pool(pool_id, p);
np->clear_read_tier();
np->clear_write_tier();
np->last_force_op_resend = pending_inc.epoch;
ss << "there is now (or already was) no overlay for '" << poolstr << "'";
wait_for_finished_proposal(new Monitor::C_Command(mon, m, 0, ss.str(),
get_last_committed() + 1));
return true;
} else if (prefix == "osd tier cache-mode") {
err = check_cluster_features(CEPH_FEATURE_OSD_CACHEPOOL, ss);
if (err == -EAGAIN)
goto wait;
if (err)
goto reply;
string poolstr;
cmd_getval(g_ceph_context, cmdmap, "pool", poolstr);
int64_t pool_id = osdmap.lookup_pg_pool_name(poolstr);
if (pool_id < 0) {
ss << "unrecognized pool '" << poolstr << "'";
err = -ENOENT;
goto reply;
}
const pg_pool_t *p = osdmap.get_pg_pool(pool_id);
assert(p);
if (!p->is_tier()) {
ss << "pool '" << poolstr << "' is not a tier";
err = -EINVAL;
goto reply;
}
string modestr;
cmd_getval(g_ceph_context, cmdmap, "mode", modestr);
pg_pool_t::cache_mode_t mode = pg_pool_t::get_cache_mode_from_str(modestr);
if (mode < 0) {
ss << "'" << modestr << "' is not a valid cache mode";
err = -EINVAL;
goto reply;
}

// pool already has this cache-mode set and there are no pending changes
if (p->cache_mode == mode &&
(pending_inc.new_pools.count(pool_id) == 0 ||
pending_inc.new_pools[pool_id].cache_mode == p->cache_mode)) {
ss << "set cache-mode for pool '" << poolstr << "'"
<< " to " << pg_pool_t::get_cache_mode_name(mode);
err = 0;
goto reply;
}

/* Mode description:
*
* none: No cache-mode defined
* forward: Forward all reads and writes to base pool
* writeback: Cache writes, promote reads from base pool
* readonly: Forward writes to base pool
* readforward: Writes are in writeback mode, Reads are in forward mode
* readproxy: Writes are in writeback mode, Reads are in proxy mode
*
* Hence, these are the allowed transitions:
*
* none -> any
* forward -> readforward || readproxy || writeback || any IF num_objects_dirty == 0
* readforward -> forward || readproxy || writeback || any IF num_objects_dirty == 0
* readproxy -> forward || readforward || writeback || any IF num_objects_dirty == 0
* writeback -> readforward || readproxy || forward
* readonly -> any
*/

// We check if the transition is valid against the current pool mode, as
// it is the only committed state thus far. We will blantly squash
// whatever mode is on the pending state.

if (p->cache_mode == pg_pool_t::CACHEMODE_WRITEBACK &&
(mode != pg_pool_t::CACHEMODE_FORWARD &&
mode != pg_pool_t::CACHEMODE_READFORWARD &&
mode != pg_pool_t::CACHEMODE_READPROXY)) {
ss << "unable to set cache-mode '" << pg_pool_t::get_cache_mode_name(mode)
<< "' on a '" << pg_pool_t::get_cache_mode_name(p->cache_mode)
<< "' pool; only '"
<< pg_pool_t::get_cache_mode_name(pg_pool_t::CACHEMODE_FORWARD)
<< "','"
<< pg_pool_t::get_cache_mode_name(pg_pool_t::CACHEMODE_READFORWARD)
<< "','"
<< pg_pool_t::get_cache_mode_name(pg_pool_t::CACHEMODE_READPROXY)
<< "' allowed.";
err = -EINVAL;
goto reply;
}
if ((p->cache_mode == pg_pool_t::CACHEMODE_READFORWARD &&
(mode != pg_pool_t::CACHEMODE_WRITEBACK &&
mode != pg_pool_t::CACHEMODE_FORWARD &&
mode != pg_pool_t::CACHEMODE_READPROXY)) ||

(p->cache_mode == pg_pool_t::CACHEMODE_READPROXY &&
(mode != pg_pool_t::CACHEMODE_WRITEBACK &&
mode != pg_pool_t::CACHEMODE_FORWARD &&
mode != pg_pool_t::CACHEMODE_READFORWARD)) ||

(p->cache_mode == pg_pool_t::CACHEMODE_FORWARD &&
(mode != pg_pool_t::CACHEMODE_WRITEBACK &&
mode != pg_pool_t::CACHEMODE_READFORWARD &&
mode != pg_pool_t::CACHEMODE_READPROXY))) {

const pool_stat_t& tier_stats =
mon->pgmon()->pg_map.get_pg_pool_sum_stat(pool_id);

if (tier_stats.stats.sum.num_objects_dirty > 0) {
ss << "unable to set cache-mode '"
<< pg_pool_t::get_cache_mode_name(mode) << "' on pool '" << poolstr
<< "': dirty objects found";
err = -EBUSY;
goto reply;
}
}
// go
pg_pool_t *np = pending_inc.get_new_pool(pool_id, p);
np->cache_mode = mode;
// set this both when moving to and from cache_mode NONE. this is to
// capture legacy pools that were set up before this flag existed.
np->flags |= pg_pool_t::FLAG_INCOMPLETE_CLONES;
ss << "set cache-mode for pool '" << poolstr
<< "' to " << pg_pool_t::get_cache_mode_name(mode);
wait_for_finished_proposal(new Monitor::C_Command(mon, m, 0, ss.str(),
get_last_committed() + 1));
return true;
} else if (prefix == "osd tier add-cache") {
err = check_cluster_features(CEPH_FEATURE_OSD_CACHEPOOL, ss);
if (err == -EAGAIN)
goto wait;
if (err)
goto reply;
string poolstr;
cmd_getval(g_ceph_context, cmdmap, "pool", poolstr);
int64_t pool_id = osdmap.lookup_pg_pool_name(poolstr);
if (pool_id < 0) {
ss << "unrecognized pool '" << poolstr << "'";
err = -ENOENT;
goto reply;
}
string tierpoolstr;
cmd_getval(g_ceph_context, cmdmap, "tierpool", tierpoolstr);
int64_t tierpool_id = osdmap.lookup_pg_pool_name(tierpoolstr);
if (tierpool_id < 0) {
ss << "unrecognized pool '" << tierpoolstr << "'";
err = -ENOENT;
goto reply;
}
const pg_pool_t *p = osdmap.get_pg_pool(pool_id);
assert(p);
const pg_pool_t *tp = osdmap.get_pg_pool(tierpool_id);
assert(tp);

if (!_check_become_tier(tierpool_id, tp, pool_id, p, &err, &ss)) {
goto reply;
}

int64_t size = 0;
if (!cmd_getval(g_ceph_context, cmdmap, "size", size)) {
ss << "unable to parse 'size' value '"
<< cmd_vartype_stringify(cmdmap["size"]) << "'";
err = -EINVAL;
goto reply;
}
// make sure new tier is empty
const pool_stat_t& tier_stats =
mon->pgmon()->pg_map.get_pg_pool_sum_stat(tierpool_id);
if (tier_stats.stats.sum.num_objects != 0) {
ss << "tier pool '" << tierpoolstr << "' is not empty";
err = -ENOTEMPTY;
goto reply;
}
string modestr = g_conf->osd_tier_default_cache_mode;
pg_pool_t::cache_mode_t mode = pg_pool_t::get_cache_mode_from_str(modestr);
if (mode < 0) {
ss << "osd tier cache default mode '" << modestr << "' is not a valid cache mode";
err = -EINVAL;
goto reply;
}
HitSet::Params hsp;
if (g_conf->osd_tier_default_cache_hit_set_type == "bloom") {
BloomHitSet::Params *bsp = new BloomHitSet::Params;
bsp->set_fpp(g_conf->osd_pool_default_hit_set_bloom_fpp);
hsp = HitSet::Params(bsp);
} else if (g_conf->osd_tier_default_cache_hit_set_type == "explicit_hash") {
hsp = HitSet::Params(new ExplicitHashHitSet::Params);
}
else if (g_conf->osd_tier_default_cache_hit_set_type == "explicit_object") {
hsp = HitSet::Params(new ExplicitObjectHitSet::Params);
} else {
ss << "osd tier cache default hit set type '" <<
g_conf->osd_tier_default_cache_hit_set_type << "' is not a known type";
err = -EINVAL;
goto reply;
}
// go
pg_pool_t *np = pending_inc.get_new_pool(pool_id, p);
pg_pool_t *ntp = pending_inc.get_new_pool(tierpool_id, tp);
if (np->tiers.count(tierpool_id) || ntp->is_tier()) {
wait_for_finished_proposal(new C_RetryMessage(this, m));
return true;
}
np->tiers.insert(tierpool_id);
np->read_tier = np->write_tier = tierpool_id;
np->set_snap_epoch(pending_inc.epoch); // tier will update to our snap info
ntp->tier_of = pool_id;
ntp->cache_mode = mode;
ntp->hit_set_count = g_conf->osd_tier_default_cache_hit_set_count;
ntp->hit_set_period = g_conf->osd_tier_default_cache_hit_set_period;
ntp->min_read_recency_for_promote = g_conf->osd_tier_default_cache_min_read_recency_for_promote;
ntp->hit_set_params = hsp;
ntp->target_max_bytes = size;
ss << "pool '" << tierpoolstr << "' is now (or already was) a cache tier of '" << poolstr << "'";
wait_for_finished_proposal(new Monitor::C_Command(mon, m, 0, ss.str(),
get_last_committed() + 1));
return true;
} else if (prefix == "osd pool set-quota") {
string poolstr;
cmd_getval(g_ceph_context, cmdmap, "pool", poolstr);
int64_t pool_id = osdmap.lookup_pg_pool_name(poolstr);
if (pool_id < 0) {
ss << "unrecognized pool '" << poolstr << "'";
err = -ENOENT;
goto reply;
}

string field;
cmd_getval(g_ceph_context, cmdmap, "field", field);
if (field != "max_objects" && field != "max_bytes") {
ss << "unrecognized field '" << field << "'; max_bytes of max_objects";
err = -EINVAL;
goto reply;
}

// val could contain unit designations, so we treat as a string
string val;
cmd_getval(g_ceph_context, cmdmap, "val", val);
stringstream tss;
int64_t value = unit_to_bytesize(val, &tss);
if (value < 0) {
ss << "error parsing value '" << value << "': " << tss.str();
err = value;
goto reply;
}

pg_pool_t *pi = pending_inc.get_new_pool(pool_id, osdmap.get_pg_pool(pool_id));
if (field == "max_objects") {
pi->quota_max_objects = value;
} else if (field == "max_bytes") {
pi->quota_max_bytes = value;
} else {
assert(0 == "unrecognized option");
}
ss << "set-quota " << field << " = " << value << " for pool " << poolstr;
rs = ss.str();
wait_for_finished_proposal(new Monitor::C_Command(mon, m, 0, rs,
get_last_committed() + 1));
return true;

} else if (prefix == "osd reweight-by-utilization") {
int64_t oload;
cmd_getval(g_ceph_context, cmdmap, "oload", oload, int64_t(120));
string out_str;
err = reweight_by_utilization(oload, out_str, false, NULL);
if (err < 0) {
ss << "FAILED reweight-by-utilization: " << out_str;
} else if (err == 0) {
ss << "no change: " << out_str;
} else {
ss << "SUCCESSFUL reweight-by-utilization: " << out_str;
getline(ss, rs);
wait_for_finished_proposal(new Monitor::C_Command(mon, m, 0, rs,
get_last_committed() + 1));
return true;
}
} else if (prefix == "osd reweight-by-pg") {
int64_t oload;
cmd_getval(g_ceph_context, cmdmap, "oload", oload, int64_t(120));
set<int64_t> pools;
vector<string> poolnamevec;
cmd_getval(g_ceph_context, cmdmap, "pools", poolnamevec);
for (unsigned j = 0; j < poolnamevec.size(); j++) {
int64_t pool = osdmap.lookup_pg_pool_name(poolnamevec[j]);
if (pool < 0) {
ss << "pool '" << poolnamevec[j] << "' does not exist";
err = -ENOENT;
goto reply;
}
pools.insert(pool);
}
string out_str;
err = reweight_by_utilization(oload, out_str, true,
pools.empty() ? NULL : &pools);
if (err < 0) {
ss << "FAILED reweight-by-pg: " << out_str;
} else if (err == 0) {
ss << "no change: " << out_str;
} else {
ss << "SUCCESSFUL reweight-by-pg: " << out_str;
getline(ss, rs);
wait_for_finished_proposal(new Monitor::C_Command(mon, m, 0, rs,
get_last_committed() + 1));
return true;
}
} else if (prefix == "osd thrash") {
int64_t num_epochs;
cmd_getval(g_ceph_context, cmdmap, "num_epochs", num_epochs, int64_t(0));
// thrash_map is a member var
thrash_map = num_epochs;
ss << "will thrash map for " << thrash_map << " epochs";
ret = thrash();
err = 0;
} else {
err = -EINVAL;
}

reply:
getline(ss, rs);
if (err < 0 && rs.length() == 0)
rs = cpp_strerror(err);
mon->reply_command(m, err, rs, rdata, get_last_committed());
return ret;

update:
getline(ss, rs);
wait_for_finished_proposal(new Monitor::C_Command(mon, m, 0, rs,
get_last_committed() + 1));
return true;

wait:
wait_for_finished_proposal(new C_RetryMessage(this, m));
return true;
}

bool OSDMonitor::preprocess_pool_op(MPoolOp *m)
{
if (m->op == POOL_OP_CREATE)
return preprocess_pool_op_create(m);

if (!osdmap.get_pg_pool(m->pool)) {
dout(10) << "attempt to delete non-existent pool id " << m->pool << dendl;
_pool_op_reply(m, 0, osdmap.get_epoch());
return true;
}

// check if the snap and snapname exists
bool snap_exists = false;
const pg_pool_t *p = osdmap.get_pg_pool(m->pool);
if (p->snap_exists(m->name.c_str()))
snap_exists = true;
switch (m->op) {
case POOL_OP_CREATE_SNAP:
if (p->is_unmanaged_snaps_mode()) {
_pool_op_reply(m, -EINVAL, osdmap.get_epoch());
return true;
}
if (snap_exists) {
_pool_op_reply(m, 0, osdmap.get_epoch());
return true;
}
return false;
case POOL_OP_CREATE_UNMANAGED_SNAP:
if (p->is_pool_snaps_mode()) {
_pool_op_reply(m, -EINVAL, osdmap.get_epoch());
return true;
}
return false;
case POOL_OP_DELETE_SNAP:
if (p->is_unmanaged_snaps_mode()) {
_pool_op_reply(m, -EINVAL, osdmap.get_epoch());
return true;
}
if (!snap_exists) {
_pool_op_reply(m, 0, osdmap.get_epoch());
return true;
}
return false;
case POOL_OP_DELETE_UNMANAGED_SNAP:
if (p->is_pool_snaps_mode()) {
_pool_op_reply(m, -EINVAL, osdmap.get_epoch());
return true;
}
if (p->is_removed_snap(m->snapid)) {
_pool_op_reply(m, 0, osdmap.get_epoch());
return true;
}
return false;
case POOL_OP_DELETE:
if (osdmap.lookup_pg_pool_name(m->name.c_str()) >= 0) {
_pool_op_reply(m, 0, osdmap.get_epoch());
return true;
}
return false;
case POOL_OP_AUID_CHANGE:
return false;
default:
assert(0);
break;
}

return false;
}

bool OSDMonitor::preprocess_pool_op_create(MPoolOp *m)
{
MonSession *session = m->get_session();
if (!session) {
_pool_op_reply(m, -EPERM, osdmap.get_epoch());
return true;
}
if (!session->is_capable("osd", MON_CAP_W)) {
dout(5) << "attempt to create new pool without sufficient auid privileges!"
<< "message: " << *m << std::endl
<< "caps: " << session->caps << dendl;
_pool_op_reply(m, -EPERM, osdmap.get_epoch());
return true;
}

int64_t pool = osdmap.lookup_pg_pool_name(m->name.c_str());
if (pool >= 0) {
_pool_op_reply(m, 0, osdmap.get_epoch());
return true;
}

return false;
}

bool OSDMonitor::prepare_pool_op(MPoolOp *m)
{
dout(10) << "prepare_pool_op " << *m << dendl;
if (m->op == POOL_OP_CREATE) {
return prepare_pool_op_create(m);
} else if (m->op == POOL_OP_DELETE) {
return prepare_pool_op_delete(m);
}

int ret = 0;
bool changed = false;

if (!osdmap.have_pg_pool(m->pool)) {
_pool_op_reply(m, -ENOENT, osdmap.get_epoch());
return false;
}

const pg_pool_t *pool = osdmap.get_pg_pool(m->pool);

switch (m->op) {
case POOL_OP_CREATE_SNAP:
case POOL_OP_DELETE_SNAP:
if (!pool->is_unmanaged_snaps_mode()) {
bool snap_exists = pool->snap_exists(m->name.c_str());
if ((m->op == POOL_OP_CREATE_SNAP && snap_exists)
|| (m->op == POOL_OP_DELETE_SNAP && !snap_exists)) {
ret = 0;
} else {
break;
}
} else {
ret = -EINVAL;
}
_pool_op_reply(m, ret, osdmap.get_epoch());
return false;

case POOL_OP_DELETE_UNMANAGED_SNAP:
// we won't allow removal of an unmanaged snapshot from a pool
// not in unmanaged snaps mode.
if (!pool->is_unmanaged_snaps_mode()) {
_pool_op_reply(m, -ENOTSUP, osdmap.get_epoch());
return false;
}
/* fall-thru */
case POOL_OP_CREATE_UNMANAGED_SNAP:
// but we will allow creating an unmanaged snapshot on any pool
// as long as it is not in 'pool' snaps mode.
if (pool->is_pool_snaps_mode()) {
_pool_op_reply(m, -EINVAL, osdmap.get_epoch());
return false;
}
}

// projected pool info
pg_pool_t pp;
if (pending_inc.new_pools.count(m->pool))
pp = pending_inc.new_pools[m->pool];
else
pp = *osdmap.get_pg_pool(m->pool);

bufferlist reply_data;

// pool snaps vs unmanaged snaps are mutually exclusive
switch (m->op) {
case POOL_OP_CREATE_SNAP:
case POOL_OP_DELETE_SNAP:
if (pp.is_unmanaged_snaps_mode()) {
ret = -EINVAL;
goto out;
}
break;

case POOL_OP_CREATE_UNMANAGED_SNAP:
case POOL_OP_DELETE_UNMANAGED_SNAP:
if (pp.is_pool_snaps_mode()) {
ret = -EINVAL;
goto out;
}
}

switch (m->op) {
case POOL_OP_CREATE_SNAP:
if (!pp.snap_exists(m->name.c_str())) {
pp.add_snap(m->name.c_str(), ceph_clock_now(g_ceph_context));
dout(10) << "create snap in pool " << m->pool << " " << m->name << " seq " << pp.get_snap_epoch() << dendl;
changed = true;
}
break;

case POOL_OP_DELETE_SNAP:
{
snapid_t s = pp.snap_exists(m->name.c_str());
if (s) {
pp.remove_snap(s);
changed = true;
}
}
break;

case POOL_OP_CREATE_UNMANAGED_SNAP:
{
uint64_t snapid;
pp.add_unmanaged_snap(snapid);
::encode(snapid, reply_data);
changed = true;
}
break;

case POOL_OP_DELETE_UNMANAGED_SNAP:
if (!pp.is_removed_snap(m->snapid)) {
pp.remove_unmanaged_snap(m->snapid);
changed = true;
}
break;

case POOL_OP_AUID_CHANGE:
if (pp.auid != m->auid) {
pp.auid = m->auid;
changed = true;
}
break;

default:
assert(0);
break;
}

if (changed) {
pp.set_snap_epoch(pending_inc.epoch);
pending_inc.new_pools[m->pool] = pp;
}

out:
wait_for_finished_proposal(new OSDMonitor::C_PoolOp(this, m, ret, pending_inc.epoch, &reply_data));
return true;
}

bool OSDMonitor::prepare_pool_op_create(MPoolOp *m)
{
int err = prepare_new_pool(m);
wait_for_finished_proposal(new OSDMonitor::C_PoolOp(this, m, err, pending_inc.epoch));
return true;
}

int OSDMonitor::_check_remove_pool(int64_t pool, const pg_pool_t *p,
ostream *ss)
{
const string& poolstr = osdmap.get_pool_name(pool);

// If the Pool is in use by CephFS, refuse to delete it
MDSMap const &pending_mdsmap = mon->mdsmon()->pending_mdsmap;
if (pending_mdsmap.pool_in_use(pool)) {
*ss << "pool '" << poolstr << "' is in use by CephFS";
return -EBUSY;
}

if (p->tier_of >= 0) {
*ss << "pool '" << poolstr << "' is a tier of '"
<< osdmap.get_pool_name(p->tier_of) << "'";
return -EBUSY;
}
if (!p->tiers.empty()) {
*ss << "pool '" << poolstr << "' has tiers";
for(std::set<uint64_t>::iterator i = p->tiers.begin(); i != p->tiers.end(); ++i) {
*ss << " " << osdmap.get_pool_name(*i);
}
return -EBUSY;
}

if (!g_conf->mon_allow_pool_delete) {
*ss << "pool deletion is disabled; you must first set the mon_allow_pool_delete config option to true before you can destroy a pool";
return -EPERM;
}

if (p->has_flag(pg_pool_t::FLAG_NODELETE)) {
*ss << "pool deletion is disabled; you must unset nodelete flag for the pool first";
return -EPERM;
}

*ss << "pool '" << poolstr << "' removed";
return 0;
}

/**
* Check if it is safe to add a tier to a base pool
*
* @return
* True if the operation should proceed, false if we should abort here
* (abort doesn't necessarily mean error, could be idempotency)
*/
bool OSDMonitor::_check_become_tier(
const int64_t tier_pool_id, const pg_pool_t *tier_pool,
const int64_t base_pool_id, const pg_pool_t *base_pool,
int *err,
ostream *ss) const
{
const std::string &tier_pool_name = osdmap.get_pool_name(tier_pool_id);
const std::string &base_pool_name = osdmap.get_pool_name(base_pool_id);

const MDSMap &pending_mdsmap = mon->mdsmon()->pending_mdsmap;
if (pending_mdsmap.pool_in_use(tier_pool_id)) {
*ss << "pool '" << tier_pool_name << "' is in use by CephFS";
*err = -EBUSY;
return false;
}

if (base_pool->tiers.count(tier_pool_id)) {
assert(tier_pool->tier_of == base_pool_id);
*err = 0;
*ss << "pool '" << tier_pool_name << "' is now (or already was) a tier of '"
<< base_pool_name << "'";
return false;
}

if (tier_pool->is_tier()) {
*ss << "tier pool '" << tier_pool_name << "' is already a tier of '"
<< osdmap.get_pool_name(tier_pool->tier_of) << "'";
*err = -EINVAL;
return false;
}

*err = 0;
return true;
}


/**
* Check if it is safe to remove a tier from this base pool
*
* @return
* True if the operation should proceed, false if we should abort here
* (abort doesn't necessarily mean error, could be idempotency)
*/
bool OSDMonitor::_check_remove_tier(
const int64_t base_pool_id, const pg_pool_t *base_pool,
int *err, ostream *ss) const
{
const std::string &base_pool_name = osdmap.get_pool_name(base_pool_id);

// If the pool is in use by CephFS, then refuse to remove its
// tier
const MDSMap &pending_mdsmap = mon->mdsmon()->pending_mdsmap;
if (pending_mdsmap.pool_in_use(base_pool_id)) {
*ss << "pool '" << base_pool_name << "' is in use by CephFS via its tier";
*err = -EBUSY;
return false;
}

*err = 0;
return true;
}

int OSDMonitor::_prepare_remove_pool(int64_t pool, ostream *ss)
{
dout(10) << "_prepare_remove_pool " << pool << dendl;
const pg_pool_t *p = osdmap.get_pg_pool(pool);
int r = _check_remove_pool(pool, p, ss);
if (r < 0)
return r;

if (pending_inc.new_pools.count(pool)) {
// if there is a problem with the pending info, wait and retry
// this op.
pg_pool_t *p = &pending_inc.new_pools[pool];
int r = _check_remove_pool(pool, p, ss);
if (r < 0)
return -EAGAIN;
}

if (pending_inc.old_pools.count(pool)) {
dout(10) << "_prepare_remove_pool " << pool << " already pending removal"
<< dendl;
return 0;
}

// remove
pending_inc.old_pools.insert(pool);

// remove any pg_temp mappings for this pool too
for (map<pg_t,vector<int32_t> >::iterator p = osdmap.pg_temp->begin();
p != osdmap.pg_temp->end();
++p) {
if (p->first.pool() == (uint64_t)pool) {
dout(10) << "_prepare_remove_pool " << pool << " removing obsolete pg_temp "
<< p->first << dendl;
pending_inc.new_pg_temp[p->first].clear();
}
}
for (map<pg_t,int32_t>::iterator p = osdmap.primary_temp->begin();
p != osdmap.primary_temp->end();
++p) {
if (p->first.pool() == (uint64_t)pool) {
dout(10) << "_prepare_remove_pool " << pool
<< " removing obsolete primary_temp" << p->first << dendl;
pending_inc.new_primary_temp[p->first] = -1;
}
}
return 0;
}

int OSDMonitor::_prepare_rename_pool(int64_t pool, string newname)
{
dout(10) << "_prepare_rename_pool " << pool << dendl;
if (pending_inc.old_pools.count(pool)) {
dout(10) << "_prepare_rename_pool " << pool << " pending removal" << dendl;
return -ENOENT;
}
for (map<int64_t,string>::iterator p = pending_inc.new_pool_names.begin();
p != pending_inc.new_pool_names.end();
++p) {
if (p->second == newname && p->first != pool) {
return -EEXIST;
}
}

pending_inc.new_pool_names[pool] = newname;
return 0;
}

bool OSDMonitor::prepare_pool_op_delete(MPoolOp *m)
{
ostringstream ss;
int ret = _prepare_remove_pool(m->pool, &ss);
if (ret == -EAGAIN) {
wait_for_finished_proposal(new C_RetryMessage(this, m));
return true;
}
if (ret < 0)
dout(10) << __func__ << " got " << ret << " " << ss.str() << dendl;
wait_for_finished_proposal(new OSDMonitor::C_PoolOp(this, m, ret,
pending_inc.epoch));
return true;
}

void OSDMonitor::_pool_op_reply(MPoolOp *m, int ret, epoch_t epoch, bufferlist *blp)
{
dout(20) << "_pool_op_reply " << ret << dendl;
MPoolOpReply *reply = new MPoolOpReply(m->fsid, m->get_tid(),
ret, epoch, get_last_committed(), blp);
mon->send_reply(m, reply);
m->put();
}
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