General

Profile

Mark Nelson

Issues

Projects

  • Ceph (Developer, Reporter, 09/18/2012)
  • Linux kernel client (Developer, Reporter, 09/18/2012)
  • phprados (Developer, Reporter, 09/18/2012)
  • devops (Developer, Reporter, 09/18/2012)
  • rbd (Developer, Reporter, 09/18/2012)
  • rgw (Developer, Reporter, 09/18/2012)
  • sepia (Developer, Reporter, Backporter, 09/18/2012)
  • fs (Developer, Reporter, 10/01/2012)
  • teuthology (Developer, Reporter, 01/10/2013)
  • rados-java (Developer, Reporter, 05/24/2013)
  • Calamari (Developer, Reporter, 08/27/2014)
  • Ceph-deploy (Developer, Reporter, 10/03/2014)
  • ceph-qa-suite (Developer, Reporter, 06/09/2015)
  • Tools (Developer, Reporter, Backporter, 01/26/2016)
  • Infrastructure (Developer, Reporter, Backporter, 01/26/2016)
  • ceph-cm-ansible (Developer, Reporter, Backporter, 01/26/2016)
  • paddles (Developer, Reporter, Backporter, 01/26/2016)
  • pulpito (Developer, Reporter, Backporter, 01/26/2016)
  • downburst (Developer, Reporter, Backporter, 01/28/2016)
  • ovh (Developer, Reporter, Backporter, 02/02/2016)
  • www.ceph.com (Developer, Reporter, Backporter, 08/22/2016)
  • CI (Reporter, 01/10/2017)
  • mgr (Developer, Reporter, 06/28/2017)
  • rgw-testing (Developer, Reporter, 11/01/2016)
  • RADOS (Developer, Reporter, 06/07/2017)
  • bluestore (Developer, Reporter, 11/29/2017)
  • ceph-volume (Developer, Reporter, 11/13/2018)

Activity

01/22/2019

03:47 PM RADOS Bug #37980: luminous: osd memery use very high,and missmatch between res and heap stats
Hi,
Often times this kind of thing is related to transparent huge pages. There definitely seems to be different k...

12/10/2018

11:18 PM RADOS Bug #37507: osd_memory_target: failed assert when options mismatch
Hi Folks,
I'm guessing this is related to https://github.com/ceph/ceph/pull/25421 Basically a stupid uint64_t bug...

11/06/2018

02:29 AM Ceph Bug #36705 (New): Update rocksdb to 5.15.X get iterator auto-readhead
https://github.com/facebook/rocksdb/wiki/Iterator
It's only in 5.12 for buffered IO and 5.15 for direct IO that it...

12/11/2017

04:15 PM sepia Support #22366 (Resolved): Sepia Lab Access Request
1) Do you just need VPN access or will you also be running teuthology jobs?
Existing, just need to add this system...

09/29/2017

06:08 PM RADOS Bug #21603: rocksdb is using slow crc
Kefu Chai wrote:
> i set a breakpoint in Fast_CRC32() and Slow_CRC32() when debugging ceph-mon, the breakpoint in Fa...
03:08 PM RADOS Bug #21603: rocksdb is using slow crc
Matt Benjamin wrote:
> Just randomly, is this output just from ceph-osd running under perf?
This is output from m...

09/22/2017

03:36 PM Ceph Bug #21503 (Closed): backport rocksdb compaction readahead
03:32 PM Ceph Bug #21505 (Resolved): filestore rocksdb compaction readahead
*master PR*: https://github.com/ceph/ceph/pull/17900
03:13 PM Ceph Bug #21503 (Closed): backport rocksdb compaction readahead

08/21/2017

02:58 PM Ceph Bug #21026: PR #16172 causing performance regression
After discussion with Eric, we can avoid the new code path entirely by increasing the osd_min_pg_log_entries to the s...

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