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Bug #8648

closed

Standby MDS leaks memory over time

Added by Milosz Tanski almost 10 years ago. Updated over 9 years ago.

Status:
Resolved
Priority:
High
Assignee:
-
Category:
-
Target version:
-
% Done:

0%

Source:
Community (dev)
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

I've discovered in my Ceph cluster that the MDS overtime will leak memory. In my case it usually takes a week two or to notice and after two months eventually the machine will kill the MDS server (OOM killed). It looks like this only happens on the standby (stanby-active) MDS, I haven't observed such leaks on the primary. If I switch which one is the standby MDS (due to a version bounce, or restart due to OS fixes) then that machine's MDS starts leaking.

I'm currently running Firefly but this issue has been present for a long time (Dumping & Emperor).

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