Re: Proposal for improvements to auto repair

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If anyone wants to look at the code changes for this feature, see https://github.com/ceph/ceph/pull/26942

Thanks

David

On 3/6/19 2:38 PM, David Zafman wrote:

Improvements to auto repair

------------------------

We should allow auto repair for bluestore pools since it has built in checksums.  Currently, we are limited to erasure coded pools.

In order to trigger a auto repair when regular scrub detects errors,  any errors should immediately schedule a deep-scrub.

Add a new pg state flag "failed_repair" when repairs can't fix all errors.  This may be tricky to implement because pg repair ends as a recovery operation.

Set failed_repair if primary repair triggered by a client read fails.

Add a count of number of objects that are repaired to PG stats and OSD stats.


David





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