Re: PG stuck incomplete after power failure.

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Try restarting the primary osd for that pg with
osd_find_best_info_ignore_history_les set to true (don't leave it set
long term).
-Sam

On Tue, May 17, 2016 at 7:50 AM, Hein-Pieter van Braam <hp@xxxxxx> wrote:
> Hello,
>
> Today we had a power failure in a rack housing our OSD servers. We had
> 7 of our 30 total OSD nodes down. Of the affect PG 2 out of the 3 OSDs
> went down.
>
> After everything was back and mostly healthy I found one placement
> group marked as incomplete. I can't figure out why.
>
> I'm running ceph 0.94.6 on CentOS7. The following steps have been tried
> in this order:
>
> 1) Reduce the min_size from 2 to 1 (as suggested by ceph health detail)
> 2) Set the 2 OSDs that were down to 'out' (one by one) and waited for
> the cluster to recover. (this did not work, I set them back in)
> 3) use ceph-objectstore-tool to export the pg from the 2 osds that went
> down, then removed it, restarted the osds.
> 4) When this did not work, import the data exported from the unaffected
> OSD into the two remaining osds.
> 5) Import the data from the unaffected OSD into all osds that are noted
> in "probing_osds"
>
> None of these had any effect on the stuck incomplete PG. I have
> attached the output of "ceph pg 54.3e9 query", "ceph health detail", as
> well as "ceph -s"
>
> The pool in question is largely read-only (it is an openstack rbd image
> pool) so I can leave it like this for the time being. Help would be
> very much appreciated!
>
> Thank you,
>
> - Hein-Pieter van Braam
> _______________________________________________
> ceph-users mailing list
> ceph-users@xxxxxxxxxxxxxx
> http://lists.ceph.com/listinfo.cgi/ceph-users-ceph.com
>
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