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Bug #45266
closedfollower monitors can grow beyond memory target
Status:
Resolved
Priority:
High
Assignee:
Category:
Performance/Resource Usage
Target version:
-
% Done:
0%
Source:
Tags:
Backport:
octopus, nautilus
Regression:
No
Severity:
3 - minor
Reviewed:
Affected Versions:
ceph-qa-suite:
Component(RADOS):
Monitor
Pull request ID:
Crash signature (v1):
Crash signature (v2):
Description
The leader monitor periordically tells tcmalloc to release memory back to the OS, but follower monitors do not. This can result in follower monitors using more memory than their memory target, and potentially getting oom killed.
A workaround is to reset the mon_memory_target config option, which will cause all monitors to ask tcmalloc to release its free memory.
Alternately, mon_memory_autotune can be disabled.
Updated by Sridhar Seshasayee almost 4 years ago
- Assignee set to Sridhar Seshasayee
Taking ownership of this.
-Sridhar
Updated by Neha Ojha almost 4 years ago
- Status changed from New to Fix Under Review
Updated by Kefu Chai almost 4 years ago
- Status changed from Fix Under Review to Pending Backport
Updated by Sridhar Seshasayee almost 4 years ago
- Copied to Backport #45391: nautilus: follower monitors can grow beyond memory target added
Updated by Sridhar Seshasayee almost 4 years ago
- Copied to Backport #45392: octopus: follower monitors can grow beyond memory target added
Updated by Nathan Cutler almost 4 years ago
- Status changed from Pending Backport to Resolved
While running with --resolve-parent, the script "backport-create-issue" noticed that all backports of this issue are in status "Resolved" or "Rejected".
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