[PVE-User] Lost cluster. Resolved.
gbr at majentis.com
Mon Mar 6 16:38:47 CET 2017
On 2017-03-06 09:23 AM, Gerald Brandt wrote:
> Last night, a friend I hadn't heard from in a year called me. His 4
> server Proxmox 4.2 system was done, and wasn't coming back up. Each
> node could only see itself as up, and some of the nodes didn't show
> every machine in the cluster. Bizarre.
> The end result was, none of the machines in the cluster had the other
> nodes in the hosts file. I added them, and it all came up nice.
> How was the system able to run before?
> My guess is their DNS server provided the names, and when the cluster
> didn't have quorum, and couldn't bring up the DNS server VM, it all
> fell apart. However, that doesn't make sense either, since the DNS
> server needed to be running before the cluster and quorum worked, and
> without quorum, there was no DNS server.
Just found out something new. The DNS server was running on an old
XenServer system, and was recently turned off. So, Proxmox could've been
getting node names<-->IP addresses via DNS, and starting up OK.
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