[PVE-User] After update Ceph monitor shows wrong version in UI and is down and out of quorum
f.thommen at dkfz-heidelberg.de
Tue Jan 5 20:08:09 CET 2021
On 05.01.21 20:01, Frank Thommen wrote:
> On 04.01.21 12:44, Frank Thommen wrote:
>> Dear all,
>> one of our three PVE hypervisors in the cluster crashed (it was fenced
>> successfully) and rebooted automatically. I took the chance to do a
>> complete dist-upgrade and rebooted again.
>> The PVE Ceph dashboard now reports, that
>> * the monitor on the host is down (out of quorum), and
>> * "A newer version was installed but old version still running,
>> please restart"
>> The Ceph UI reports monitor version 14.2.11 while in fact 14.2.16 is
>> installed. The hypervisor has been rebooted twice since the upgrade,
>> so it should be basically impossible that the old version is still
>> `systemctl restart ceph.target` and restarting the monitor through the
>> PVE Ceph UI didn't help. The hypervisor is running PVE 6.3-3 (the
>> other two are running 6.3-2 with monitor 14.2.15)
>> What to do in this situation?
>> I am happy with either UI or commandline instructions, but I have no
>> Ceph experience besides setting up it up following the PVE instructions.
>> Any help or hint is appreciated.
>> Cheers, Frank
> In an attempt to fix the issue I destroyed the monitor through the UI
> and recreated it. Unfortunately it can still not be started. A popup
> tells me that the monitor has been started, but the overview still shows
> "stopped" and there is no version number any more.
> Then I stopped and started Ceph on the node (`pveceph stop; pveceph
> start`) which resulted in a degraded cluster (1 host down, 7 of 21 OSDs
> down). OSDs cannot be started through the UI either.
> I feel extremely uncomfortable with this situation and would appreciate
> any hint as to how I should proceed with the problem.
> Cheers, Frank
OSDs and MDSs just took a bit to start, so from this side it looks ok
now. But the monitor still refuses to start.
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