On Mon, Nov 12, 2018 at 3:53 PM Felix Stolte <f.sto...@fz-juelich.de> wrote:
>
> Hi folks,
>
> is anybody using cephfs with snapshots on luminous? Cephfs snapshots are
> declared stable in mimic, but I'd like to know about the risks using
> them on luminous. Do I risk a complete cephfs failure or just some not
> working snapshots? It is one namespace, one fs, one data and one
> metadata pool.
>

For luminous, snapshot in single mds setup basically works. But
snapshot is complete broken in multiple setup.

> Also I'd like to know if there is a way to list all current snapshot
> (folders) in cephfs. Since a snaphot is created by the mkdir command,
> snapshot creation can be done by every user and I would like to monitor
> snapshotted folders and snaphshot size (if possible).
>

In mimic, there is command "ceph daemon mds.x dump snaps"

> Best regards
>
> Felix
>
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>
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