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Bug #11218

closed

Assertion on MDS rank `in` but without instance

Added by John Spray about 9 years ago. Updated about 9 years ago.

Status:
Resolved
Priority:
Normal
Assignee:
John Spray
Category:
-
Target version:
-
% Done:

0%

Source:
other
Tags:
Backport:
Regression:
Severity:
3 - minor
Reviewed:
Affected Versions:
ceph-qa-suite:
Component(FS):
Labels (FS):
Pull request ID:
Crash signature (v1):
Crash signature (v2):

Description

Unintended consequence of an MDS in 'damaged' state: a peer in a multi-MDS environment is confused that the MDS is 'in' but does not have an associated daemon. Shown up by test_journal_repair, which will also need updating to not expect a crash.

2015-03-23 16:37:28.125925 7f92d77a9700 -1 mds/MDSMap.h: In function 'const entity_inst_t MDSMap::get_inst(mds_rank_t)' thread 7f92d77a9700 time 2015-03-23 16:37:28.122743
mds/MDSMap.h: 559: FAILED assert(up.count(m))

 ceph version 0.93-776-g0a3e47d (0a3e47d778b457ae878024f95f610b0a8c2fb490)
 1: (ceph::__ceph_assert_fail(char const*, char const*, int, char const*)+0x7f) [0x97db2f]
 2: (MDBalancer::send_heartbeat()+0x163f) [0x7641ef]
 3: (MDBalancer::tick()+0x22a) [0x76cbaa]
 4: (MDS::tick()+0x364) [0x5b4444]
 5: (MDSInternalContextBase::complete(int)+0x1db) [0x7f1b6b]
 6: (SafeTimer::timer_thread()+0x3e5) [0x96f615]
 7: (SafeTimerThread::entry()+0xd) [0x9701ad]
 8: (()+0x7e9a) [0x7f92df97ae9a]
 9: (clone()+0x6d) [0x7f92de3412ed]
 NOTE: a copy of the executable, or `objdump -rdS <executable>` is needed to interpret this.
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