[ceph-users] CephFS desync

Andrey Klimentyev andrey.klimentyev at flant.com
Fri Nov 3 00:29:24 PDT 2017

Thanks for a swift response.

We are using 10.2.10.

They all share the same set of permissions (and one key, too). Haven't
found anything incriminating in logs, too.

caps: [mon] allow r
caps: [osd] allow class-read object_prefix rbd_children, allow rwx pool=rbd

On 3 November 2017 at 00:56, Gregory Farnum <gfarnum at redhat.com> wrote:

> On Thu, Nov 2, 2017 at 9:05 AM Andrey Klimentyev <
> andrey.klimentyev at flant.com> wrote:
>> Hi,
>> we've recently hit a problem in a production cluster. The gist of it is
>> that sometimes file will be changed on one machine, but only the "change
>> time" would propagate to others. The checksum is different. Contents,
>> obviously, differ as well. How can I debug this?
>> In other words, how would I approach such problem with "stuck files"?
>> Haven't found anything on Google or troubleshooting docs.
> What versions are you running?
> The only way I can think of this happening is if one of the clients had
> permission to access the CephFS namespace on the MDS, but not to write to
> the OSDs which store the file data. Have you checked that the clients all
> have the same caps? ("ceph auth list" or one of the related more-specific
> commands will let you compare.)
> -Greg
>> --
>> Andrey Klimentyev,
>> DevOps engineer @ JSC «Flant»
>> http://flant.com/ <http://flant.ru/>
>> _______________________________________________
>> ceph-users mailing list
>> ceph-users at lists.ceph.com
>> http://lists.ceph.com/listinfo.cgi/ceph-users-ceph.com

Andrey Klimentyev,
DevOps engineer @ JSC «Flant»
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