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

[Chance Ellis]

I have seen this issue when multicast was misbehaving between the devices. The cluster requires multicast to work properly.





On 6/19/17, 10:50 AM, "pve-user on behalf of Guy Plunkett" <pve-user-bounces at pve.proxmox.com on behalf of guy at britewhite.net> wrote:

>Well I would start to verify the IP addresses… make sure you don’t have any conflicts.. next move on to the switch.  What switch do you have? and how have you got it configured? It needs to allow all traffic between the proxmox interfaces.
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>Thanks,
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>--Guy
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>> On 19 Jun 2017, at 15:45, Gerald Brandt <gbr at majentis.com> wrote:
>> 
>> Hi,
>> 
>> 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.
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>> Any idea where I can start looking?
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>> 
>> Gerald
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>> 
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