On Tue, Feb 13, 2018 at 10:38 AM, Josef Zelenka <josef.zelenka@xxxxxxxxxxxxxxxx> wrote: > Hi everyone, one of the clusters we are running for a client recently had a > power outage, it's currently in a working state, however 3 pgs were left > inconsistent atm, with this type of error in the log(when i attempt to ceph > pg repair it) > > 2018-02-13 09:47:17.534912 7f3735626700 -1 log_channel(cluster) log [ERR] : > repair 15.1e32 15:4c7eed31:::10002110e12.0000004b:head on disk size (0) does > not match object info size (4194304) adjusted for ondisk to (4194304) > > i know this can be fixed by truncating the ondisk object to the expected > size, but it clearly means we've lost some data. This cluster is used for > cephfs only, so i'd like to find which files on the cephfs were affected. I > know the OSDs for that pg, i know which pg and which object was affected, so > i hope it's possible. I found a 2015 entry in the mailing list, that does > the reverse thing > (http://lists.ceph.com/pipermail/ceph-users-ceph.com/2015-October/005384.html), > as in - map file to pg/object. I have 230TB of data in that cluster in a lot > of files, so mapping them all would take a long time. I hope there is a way > to do this, if people here have any idea/experience with this, it'd be > great. We added a tool in luminous that does this: http://docs.ceph.com/docs/master/cephfs/disaster-recovery/#finding-files-affected-by-lost-data-pgs John > > Thanks > > Josef Zelenka > > _______________________________________________ > ceph-users mailing list > ceph-users@xxxxxxxxxxxxxx > http://lists.ceph.com/listinfo.cgi/ceph-users-ceph.com _______________________________________________ ceph-users mailing list ceph-users@xxxxxxxxxxxxxx http://lists.ceph.com/listinfo.cgi/ceph-users-ceph.com
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