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Bug #20799
closedRaces when multiple MDS boot at once
% Done:
0%
Source:
Development
Tags:
Backport:
Regression:
No
Severity:
3 - minor
Reviewed:
Affected Versions:
ceph-qa-suite:
Component(FS):
Labels (FS):
multimds
Pull request ID:
Crash signature (v1):
Crash signature (v2):
Description
There is a race in MDSRank::starting_done() between MDCache::open_root() and MDLog::start_new_segment()
An MDS in boot state will ignore discover messages, so if another MDS that is booting simultaneously tries to discover the root, it will hang waiting for the reply.
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