[ntp:questions] NTP as HA-cluster service

David Woolley david at ex.djwhome.demon.co.uk.invalid
Thu Jun 4 20:49:11 UTC 2009


James wrote:
> I have NTP setup as a heartbeat service in a two-node cluster.  If I
> was to offer this service to the public pool, would there be an issue
> with hosts using it when the service failed over to the other node?  I

NTP should not be failed over.  It should be provided on addresses that 
correspond to specific physical machines.  Failover for ntpd should be 
done by having the client have both machines as servers.

> ask because currently I don't have a DRBD or network filesystem for
> NTP, I have it configured identically on each node and the service
> just runs on one of the nodes at at time (with a virtual IP). The node
> that isn't the server just ntpdate's itself against the virtual IP
> every so often.




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