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Bug #3369

closed

journaled two client session close events

Added by Greg Farnum over 11 years ago. Updated almost 8 years ago.

Status:
Resolved
Priority:
Normal
Assignee:
Greg Farnum
Category:
-
Target version:
-
% Done:

0%

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

Description

Unfortunately there are no logs of the event occurring, but an MDS crash on startup was reported on the mailing list.

I've traced it down to the mds journal logging two close events on the same client session, which leads to a segfault. The replay log is attached.

I'm going to generate a quick workaround for extra close events and post that branch here as well.

Files

ceph-mds.b.log.bz2 (8.47 MB) ceph-mds.b.log.bz2 Greg Farnum, 10/19/2012 02:05 PM
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 #1

Updated by Greg Farnum over 11 years ago

Dur, forgot the file.

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 #2

Updated by Greg Farnum over 11 years ago

3369-mds-session-workaround for a bypass. Not sure if we want to merge this or not since it's just a bandaid!
It's based on v0.48.1argonaut but should patch on top of anything anybody's still interested in.

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 #3

Updated by Greg Farnum over 11 years ago

  • Status changed from New to Resolved

Sage merged that workaround a long time ago, and I think Zheng's recent patches might have fixed some potential root causes?

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 #4

Updated by Greg Farnum almost 8 years ago

  • Component(FS) MDS added
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