[PVE-User] After update Ceph monitor shows wrong version in UI and is down and out of quorum

Uwe Sauter uwe.sauter.de at gmail.com
Tue Jan 5 20:10:19 CET 2021


Hi Frank,

did you look into the log of MON and OSD? Can you provide the list of installed packages of the affected host and the 
rest of the cluster?

Is the output of "ceph status" the same for all hosts?


Regards,

	Uwe

Am 05.01.21 um 20:01 schrieb Frank Thommen:
> 
> 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 running.
>>
>> `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
> 
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