[Pacemaker] Change Hostname

[Vit Pelcak]

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Dne 4.9.2012 10:28, Thorsten Rehm napsal(a):
> Hi everyone,
> 
> I have a cluster with three nodes (stack: heartbeat) and I need to 
> change the hostname of all systems (only the hostname, not the ip 
> address or other network configuration). I have already made
> several attempts, but so far I have not managed that resources are
> available without interruption, after I changed the hostname. Is
> there a procedure that allows me to change the hostname, without
> loss of resources? If so, how would this look like? Is there a best
> case?


Hm. What about modifying corosync.conf to reflect hostname change on
all nodes, restarting corosync on all one after another (so you always
have at least 2 nodes running corosync and resources) and then
changing that hostname on desired machine and restarting corosync on it?

In general, do not stop corosync on more than 1 node at the time and
you should be safe.

> Cheers, Thorsten
> 
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