Re: Ganesha NFS: Files disappearing

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Hey Patrick,

I had a somewhat similar issue but with FSAL_RGW.
On the NFS-side, I noticed missing files. There were no errors in the logfiles whatsoever.

Solution was to rebuild nfs-ganesha with the most recent libceph-dev at that time.
Are you using pre-built ganesha binaries or did you compile it yourself?

Best Regards,
Alex Walender

Am 15.03.23 um 12:02 schrieb Patrick Schlangen:
Hi,

today I saw a strange situation where files which were copied to a cephfs via Ganesha NFS (deployed via cephadm) disappeared from the NFS directory and then did not show up anymore until I restarted the ganesha instance. This could be observed on different NFS client hosts. While the files were not showing, they could still be seen via cephfs-shell, so I assume the issue is somewhere on the NFS side. Interestingly, the folder modification time (shown in ls) matched the time the file was copied to that folder.

Any idea what could be the issue here? Unfortunately there were no interesting logs and I couldn't find a way yet to reproduce this.

The ceph version in use is 17.2.5.

Thanks,

Patrick
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--
M.Sc Alex Walender

Forschungszentrum Jülich
Institut für Bio- und Geowissenschaften
IBG 5 - Computergestützte Metagenomik /
        de.NBI Cloud Site Bielefeld

Büro : Universität Bielefeld (UHG), M3-118
Tel. :  +49-521-106-2907

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