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Bug #23172
closedmds: fixed MDS_FEATURE_INCOMPAT_FILE_LAYOUT_V2 definition breaks luminous upgrades
% Done:
0%
Source:
Community (user)
Tags:
Backport:
luminous
Regression:
Yes
Severity:
4 - irritation
Reviewed:
Affected Versions:
ceph-qa-suite:
Component(FS):
MDS
Labels (FS):
Pull request ID:
Crash signature (v1):
Crash signature (v2):
Description
commit ddba907279719631903e3a20543056d81d176a1b changed the id of MDS_FEATURE_INCOMPAT_FILE_LAYOUT_V2 from 8 to 9. (this was to fix http://tracker.ceph.com/issues/21985)
When we update and restart any MDS (jewel or luminous before v12.2.3) to 12.2.3, then all MDS's not yet running the new version aware of feature bit 9 will suicide:
2018-02-28 10:25:22.761413 7f03da1b9700 0 mds.cephdwightmds0
handle_mds_map mdsmap compatset compat={},rocompat={},incompat={1=base
v0.20,2=client writeable ranges,3=default file layouts on dirs,4=dir
inode in separate object,5=mds uses versioned encoding,6=dirfrag is
stored in omap,8=no anchor table,9=file layout v2} not writeable with
daemon features compat={},rocompat={},incompat={1=base v0.20,2=client
writeable ranges,3=default file layouts on dirs,4=dir inode in
separate object,5=mds uses versioned encoding,6=dirfrag is stored in
omap,7=mds uses inline data,8=file layout v2}, killing myself
2018-02-28 10:25:22.761429 7f03da1b9700 1 mds.cephdwightmds0 suicide.
wanted state up:active
2018-02-28 10:25:23.763226 7f03da1b9700 1 mds.0.18147 shutdown:
shutting down rank 0
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