[PVE-User] Recurring crashes after cluster upgrade from 5 to 6

[Eneko Lacunza]

Hi all,

We updated our office cluster to get the patch, but got a node reboot on 
31th october. Node was fenced and rebooted, everything continued working OK.

Is anyone experencing yet this problem?

Cheers
Eneko

El 2/10/19 a las 18:09, Hervé Ballans escribió:
> Hi Alexandre,
>
> We encouter exactly the same problem as Laurent Caron (after upgrade 
> from 5 to 6).
>
> So I tried your patch 3 days ago, but unfortunately, the problem still 
> occurs...
>
> This is a really annoying problem, since sometimes, all the PVE nodes 
> of our cluster reboot quasi-simultaneously !
> And in the same time, we don't encounter this problem with our other 
> PVE cluster in version 5.
> (And obviously we are waiting for a solution and a stable situation 
> before upgrade it !)
>
> It seems to be a unicast or corosync3 problem, but logs are not really 
> verbose at the time of reboot...
>
> Is there anything else to test ?
>
> Regards,
> Hervé
>
> Le 20/09/2019 à 17:00, Alexandre DERUMIER a écrit :
>> Hi,
>>
>> a patch is available in pvetest
>>
>> http://download.proxmox.com/debian/pve/dists/buster/pvetest/binary-amd64/libknet1_1.11-pve2_amd64.deb 
>>
>>
>> can you test it ?
>>
>> (you need to restart corosync after install of the deb)
>>
>>
>> ----- Mail original -----
>> De: "Laurent CARON" <lcaron at unix-scripts.info>
>> À: "proxmoxve" <pve-user at pve.proxmox.com>
>> Envoyé: Lundi 16 Septembre 2019 09:55:34
>> Objet: [PVE-User] Recurring crashes after cluster upgrade from 5 to 6
>>
>> Hi,
>>
>>
>> After upgrading our 4 node cluster from PVE 5 to 6, we experience
>> constant crashed (once every 2 days).
>>
>> Those crashes seem related to corosync.
>>
>> Since numerous users are reporting sych issues (broken cluster after
>> upgrade, unstabilities, ...) I wonder if it is possible to downgrade
>> corosync to version 2.4.4 without impacting functionnality ?
>>
>> Basic steps would be:
>>
>> On all nodes
>>
>> # systemctl stop pve-ha-lrm
>>
>> Once done, on all nodes:
>>
>> # systemctl stop pve-ha-crm
>>
>> Once done, on all nodes:
>>
>> # apt-get install corosync=2.4.4-pve1 libcorosync-common4=2.4.4-pve1
>> libcmap4=2.4.4-pve1 libcpg4=2.4.4-pve1 libqb0=1.0.3-1~bpo9
>> libquorum5=2.4.4-pve1 libvotequorum8=2.4.4-pve1
>>
>> Then, once corosync has been downgraded, on all nodes
>>
>> # systemctl start pve-ha-lrm
>> # systemctl start pve-ha-crm
>>
>> Would that work ?
>>
>> Thanks
>>
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