Re: MDS crashes to damaged metadata

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Hi Patrick,

it does seem like it. We are not using postgres on cephfs as far as i know. We narrowed it down to three damaged inodes, but files in question had been xlsx, pdf or pst.

Do you have any suggestion how to fix this?

Is there a way to scan the cephfs for damaged inodes?


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Am 30.11.2022 um 22:49 schrieb Patrick Donnelly <pdonnell@xxxxxxxxxx>:

On Wed, Nov 30, 2022 at 3:10 PM Stolte, Felix <f.stolte@xxxxxxxxxxxxx> wrote:

Hey guys,

our mds daemons are crashing constantly when someone is trying to delete a file:

-26> 2022-11-29T12:32:58.807+0100 7f081b458700 -1 /build/ceph-16.2.10/src/mds/Server.cc<http://server.cc/>: In function 'void Server::_unlink_local(MDRequestRef&, CDentry*, CDentry*)' thread 7f081b458700 time 2022-11-29T12:32:58.808844+0100

2022-11-29T12:32:58.807+0100 7f081b458700  4 mds.0.server handle_client_request client_request(client.1189402075:14014394 unlink #0x100197fa8e0/~$29.11. T.xlsx 2022-11-29T12:32:23.711889+0100 RETRY=1 caller_uid=133365,

I observed that the corresponding object in the cephfs data pool does not exist. Basically our MDS Daemons are crashing each time, when somone tries to delete a file which does not exist in the data pool but metadata says otherwise.

Any suggestions how to fix this problem?

Is this it?

https://tracker.ceph.com/issues/38452

Are you running postgres on CephFS by chance?

--
Patrick Donnelly, Ph.D.
He / Him / His
Principal Software Engineer
Red Hat, Inc.
GPG: 19F28A586F808C2402351B93C3301A3E258DD79D


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