[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
Fri Jan 8 11:45:35 CET 2021



Am 08.01.21 um 11:36 schrieb Frank Thommen:
> 
> On 05.01.21 21:17, Frank Thommen wrote:
>> On 05.01.21 21:02, Uwe Sauter wrote:
>>> There's a paragraph about probing mons on
>>>
>>> https://docs.ceph.com/en/latest/rados/troubleshooting/troubleshooting-mon/
>>
>> I will check that (tomorrow :-)
> 
> 
> using the monitor's admin socket on either of the three nodes I can query the monitors of 01 and 03 (the good ones) but 
> not of 02 (the problematic one):
> 
> root at odcf-pve01:~# ceph tell mon.odcf-pve02 mon_status
> Error ENOENT: problem getting command descriptions from mon.odcf-pve02
> root at odcf-pve01:~#
> 
> The monitor daemon is running on all three and the ports are open.
> 
> Any other ideas?

You could check the permissions on the socket:

ss -xln | grep ceph-mon
SOCK=$(ss -xln | awk '/ceph-mon/ {print $5}')
ls -la ${SOCK}

On my host, this shows

srwxr-xr-x 1 ceph ceph 0 Dec 20 23:47 /var/run/ceph/ceph-mon.px-alpha-cluster.asok



> 
> Cheers, Frank
> 
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