Re: Scrub Error / How does ceph pg repair work?

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On Tue, May 12, 2015 at 1:07 AM, Anthony D'Atri <aad@xxxxxxxxxxxxxx> wrote:
>
>
> Agree that 99+% of the inconsistent PG's I see correlate directly to disk flern.
>
> Check /var/log/kern.log*, /var/log/messages*, etc. and I'll bet you find errors correlating.
>

More to this... In the case that an inconsistent PG is caused by a
failed disk read, you don't need to run ceph pg repair at all.
Instead, since your drive is bad, stop the osd process, mark that osd
out. After backfilling has completed and the PG is re-scrubbed, you
will find it is consistent again.

Cheers, Dan
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