Actions
Bug #65388
openThe MDS_SLOW_REQUEST warning is flapping even though the slow requests don't go away
Status:
New
Priority:
Normal
Assignee:
Category:
Correctness/Safety
Target version:
% Done:
0%
Source:
Community (user)
Tags:
Backport:
Regression:
No
Severity:
3 - minor
Reviewed:
Affected Versions:
ceph-qa-suite:
Component(FS):
Labels (FS):
Pull request ID:
Crash signature (v1):
Crash signature (v2):
Description
I have caught a cluster in an unhealthy state - probably some MDS deadlock that results in requests being blocked (deadlocked?) for multiple hours. I would expect the MDS_SLOW_REQUEST warning to be constantly present until the slow requests are somehow unblocked or the bad clients are gone. However, it is flapping, that is, there are windows of HEALTH_OK that should not be there. These bogus HEALTH_OK windows (and not the deadlock itself) are the subject of this issue.
As an example, I attached a log file generated by this command:
while true ; do date ; ceph -s ; ceph tell mds.0 dump_ops_in_flight ; sleep 5 ; done | tee ceph-bug.logFiles
Updated by Venky Shankar 18 days ago
- Category set to Correctness/Safety
- Assignee set to Leonid Usov
- Target version set to v20.0.0
- Source set to Community (user)
Actions