On 2017-03-06 09:23 AM, Gerald Brandt wrote:
Hi,
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.
Gerald
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.
Gerald
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