[PVE-User] Servers spontaneously Rebooting

[Lindsay Mathieson]

On 30/11/15 17:27, Thomas Lamprecht wrote:
> If you prefer to use journalctl execute `mkdir /var/log/journal` to 
> make those logs persistent, then you can browse the last boot with
> journalctl -b-1
> where -1 denotes the previous boot

I'll do that, thanks.


>>
>> Can HA cause a host to reboot? I thought it was just around 
>> restarting VM's
>>
>
> Yes it is around (re)starting VMs when there is a failure, but to 
> secure that the VM only runs once in the cluster (to avoid race 
> conditions/ multiple access to shared resources) we need fencing.
> Proxmox VE 4 uses self fencing which restarts the node via the 
> watchdog if it lost quorum for more than 60 seconds AND a HA resource 
> is configured on this node to secure that all shared resources are 
> free for the rest of the cluster. 


Ahhhhh ... that sounds a distinct possibility then, I'll remove all HA 
resources for now and monitor the quorum via the logs. Didn't think I 
had quorum issues, but best to be sure.

Thanks - Lindsay