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Bug #54180
closedIn some cases osdmaptool takes forever to complete
% Done:
100%
Source:
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Backport:
Regression:
No
Severity:
3 - minor
Reviewed:
Affected Versions:
ceph-qa-suite:
Component(RADOS):
Pull request ID:
Crash signature (v1):
Crash signature (v2):
Description
with the attached file run the command:
osdmaptool osdmap.GD.bin --upmap out-file --upmap-deviation 1 --upmap-pool default.rgw.buckets.data --upmap-max 25
on my laptop it takes 13 minutes to complete - the whole time is wasted in OSDMap::calc_pg_upmaps function. It eventually completes. Note that it runs OK for smaller values of --upmap-max, then it suddenly starts to become extremely slow.
I plan to post a PR for fixing this (on my laptop from 13 minutes to 15 seconds).
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