Re: Update to Mimic with prior Snapshots leads to MDS damaged metadata

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On Thu, Jun 7, 2018 at 2:44 PM, Tobias Florek <ceph@xxxxxxxxxx> wrote:
> Hi!
>
> Thank you for your help! The cluster is running healthily for a day now.
>
> Regarding the problem, I just checked in the release notes [1] and on
> docs.ceph.com and did not find the right invocation after an upgrade.
> Maybe that ought to be fixed.
>

We are fixing the release note. https://github.com/ceph/ceph/pull/22445

>>> [upgrade from luminous to mimic with prior cephfs snapshots]
>> The correct commands should be:
>>
>> ceph daemon <mds of rank 0> scrub_path / force recursive repair
>> ceph daemon <mds of rank 0> scrub_path '~mdsdir' force recursive
>
> [1] https://ceph.com/releases/v13-2-0-mimic-released/
> [2]
> https://www.google.com/search?q=site%3Adocs.ceph.com+scrub_path+inurl%3Amimic&oq=site%3Adocs.ceph.com+scrub_path+inurl%3Amimic
>
> Cheers,
>  Tobias Florek
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