Re: Octopus OSDs dropping out of cluster: _check_auth_rotating possible clock skew, rotating keys expired way too early

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Hi,

I have the same situation with some OSD on Octopus 15.2.5 (Ubuntu 20,04).
But, I have no problem with MGR. Any clue about this?

Best regards,


Date: Tue, 9 Jun 2020 23:47:24 +0200
> From: Wido den Hollander <wido@xxxxxxxx>
> Subject:  Octopus OSDs dropping out of cluster:
>         _check_auth_rotating possible clock skew, rotating keys expired way
>         too early
> To: "ceph-users@xxxxxxx" <ceph-users@xxxxxxx>
> Message-ID: <be7aadc4-2142-ea31-caa8-28ca6db03d15@xxxxxxxx>
> Content-Type: text/plain; charset=utf-8
>
> Hi,
>
> On a recently deployed Octopus (15.2.2) cluster (240 OSDs) we are seeing
> OSDs randomly drop out of the cluster.
>
> Usually it's 2 to 4 OSDs spread out over different nodes. Each node has
> 16 OSDs and not all the failing OSDs are on the same node.
>
> The OSDs are marked as down and all they keep print in their logs:
>
> monclient: _check_auth_rotating possible clock skew, rotating keys
> expired way too early (before 2020-06-04T07:57:17.706529-0400)
>
> Looking at their status through the admin socket:
>
> {
>     "cluster_fsid": "68653193-9b84-478d-bc39-1a811dd50836",
>     "osd_fsid": "87231b5d-ae5f-4901-93c5-18034381e5ec",
>     "whoami": 206,
>     "state": "active",
>     "oldest_map": 73697,
>     "newest_map": 75795,
>     "num_pgs": 19
> }
>
> The message brought me to my own ticket I created 2 years ago:
> https://tracker.ceph.com/issues/23460
>
> The first thing I've checked is NTP/time. Double, triple check this. All
> the times are in sync on the cluster. Nothing wrong there.
>
> Again, it's not all the OSDs on a node failing. Just 1 or 2 dropping out.
>
> Restarting them brings them back right away and then within 24h some
> other OSDs will drop out.
>
> Has anybody seen this behavior with Octopus as well?
>
> Wido
>
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