On Mon, Nov 8, 2021 at 3:01 PM Joost Nieuwenhuijse <joost@xxxxxxxxxxx> wrote:
>
> On 08/11/2021 05:52, Venky Shankar wrote:
> > On Sun, Nov 7, 2021 at 3:28 PM Joost Nieuwenhuijse <joost@xxxxxxxxxxx> wrote:
> >>
> >> Hi,
> >>
> >> I've enabled a simple CephFS snapshot schedule
> >>
> >> # ceph fs snap-schedule list /
> >> / 8h 6h
> >>
> >> # ceph fs snap-schedule status /
> >> {"fs": "cephfs1", "subvol": null, "path": "/", "rel_path": "/",
> >> "schedule": "8h", "retention": {"h": 6}, "start": "2021-11-03T00:00:00",
> >> "created": "2021-11-03T16:41:45", "first": null, "last": null,
> >> "last_pruned": null, "created_count": 0, "pruned_count": 0, "active": true}
> >>
> >> I think this should mean a snapshot is created every 8 hours, and the
> >> last 6 snapshots are retained.
> >>
> >> # ll /cephfs/.snap
> >> total 0
> >> drwxr-xr-x 2 root root 0 nov 2 13:58 ./
> >> drwxr-xr-x 3 root root 1 nov 2 13:58 ../
> >> drwxr-xr-x 3 root root 1 nov 2 13:58 scheduled-2021-11-02-16_00_00/
> >> drwxr-xr-x 3 root root 1 nov 2 13:58 scheduled-2021-11-04-00_00_00/
> >> drwxr-xr-x 3 root root 1 nov 2 13:58 scheduled-2021-11-04-08_00_00/
> >> drwxr-xr-x 3 root root 1 nov 2 13:58 scheduled-2021-11-04-16_00_00/
> >> drwxr-xr-x 3 root root 1 nov 2 13:58 scheduled-2021-11-05-00_00_00/
> >> drwxr-xr-x 3 root root 1 nov 2 13:58 scheduled-2021-11-05-08_00_00/
> >>
> >> Snapshotting seems to stop after 6 snapshots have been created (today is
> >> 2021-11-07). This is after I've already tried removing the schedule and
> >> recreating it.
> >>
> >> A similar problem was reported earlier this month:
> >> https://lists.ceph.io/hyperkitty/list/ceph-users@xxxxxxx/thread/IWOX3FWI2CAQLDJ73PHTTA76EY3RJRDY/
> >>
> >> I'm new to ceph, is this a bug?
> >
> > Do you see any tracebacks in (ceph-mgr) logs related to snap_schedule plugin?
>
> No, just this:
>
> # cat /var/log/ceph/ceph-mgr.miles.log | grep snap
> 2021-11-08T07:59:39.518+0000 7fd31d7fa640 0 [snap_schedule INFO
> mgr_util] scanning for idle connections..
> 2021-11-08T07:59:39.518+0000 7fd31d7fa640 0 [snap_schedule INFO
> mgr_util] cleaning up connections: []
> 2021-11-08T08:00:09.518+0000 7fd31d7fa640 0 [snap_schedule INFO
> mgr_util] scanning for idle connections..
> 2021-11-08T08:00:09.518+0000 7fd31d7fa640 0 [snap_schedule INFO
> mgr_util] cleaning up connections: []
> 2021-11-08T08:00:39.518+0000 7fd31d7fa640 0 [snap_schedule INFO
> mgr_util] scanning for idle connections..
> 2021-11-08T08:00:39.518+0000 7fd31d7fa640 0 [snap_schedule INFO
> mgr_util] cleaning up connections: []
>
> repeated twice a minute.
Could you try restarting ceph-mgr and check if things progress?
Also, it would help to enable debug logs for ceph-mgr.
>
> The snap schedule is still there:
>
> # ceph fs snap-schedule list /
> / 8h 6h
>
> Joost
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>
--
Cheers,
Venky
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