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

Frank Thommen f.thommen at dkfz-heidelberg.de
Fri Jan 8 12:44:58 CET 2021


yes /etc/ceph/ceph.conf is identical on all three hosts and there is a 
mon_host line with the correct IPs.  Interestingly there is a special 
section for odcf-pve02:

-----------
[mon.odcf-pve02]
	 public_addr = 192.168.255.2
-----------

This is the same IP as in the mon_host line.  However there is no 
equivalent section for the other two nodes.

Frank


On 08.01.21 12:27, Peter Simon wrote:
> Hi Frank,
> 
> your /etc/ceph/ceph.conf is the same on all hosts ?
> 
> is there mon host = ip1, ip2, ip3
> 
> and seperate sections with [mon.x]
> host = hostname
> mon addr = ip:6789
> 
> Cheers
> Peter
> 
> Am 08.01.21 um 12:05 schrieb Frank Thommen:
>>
>>
>> On 08.01.21 11:45, Uwe Sauter wrote:
>>>
>>>
>>> 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
>>
>> same here
>>
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> 
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