[PVE-User] Proxmox servers don't see each other anymore

Dmitry Petuhov mityapetuhov at gmail.com
Mon Jun 19 19:15:34 CEST 2017

So network in general is ok, cluster is just losing quorum after some time?
Check your network for muticast querier. See https://pve.proxmox.com/wiki/Multicast_notes
You need to enable querier on your router (usually gateway of servers), or enable it on your servers, or disable multicast snooping on switch.

19.06.2017 18:07, Gerald Brandt пишет:
> I can still ping each server when there is an issue. Don't want to power cycle the switches during the workday, but may have to.
> On 2017-06-19 09:57 AM, Gilberto Nunes wrote:
>> Probably some network trouble??
>> Did you check cables, swotch and so on??
>> When the problem appears, can you ping each server?
>>> My proxmox server intermittently don't see each other anymore. I keep
>>> losing quorum.
>>> I have 3 Proxmox servers, and they will randomly not see each other. For a
>>> few seconds proxmox-2 will see proxmox-1, but not proxmox-3. Then it'll
>>> switch and proxmox-2 will only see proxmox-3, then it will see no one but
>>> itself.
>>> I have the IP and names in /etc/hosts and in DNS.
>>> Any idea where I can start looking? 

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