[Pacemaker] Notification when a node is down

[Michael Schwartzkopff]

Am Montag, 15. September 2014, 10:59:39 schrieb Ken Gaillot:
> On 09/12/2014 02:30 AM, Sihan Goi wrote:
> > Is there any way for a Pacemaker/Corosync/PCS setup to send a
> > notification when it detects that a node in a cluster is down? I read
> > that Pacemaker and Corosync logs events to syslog, but where is the
> > syslog file in CentOS? Do they log events such as a failover occurrence?

This is the job of a monitoring system. The monitoring system checks the state 
of the cluster form time to time and sends out notifications if anything is 
not as expected.

You cannoy rely only on a cluster-centric solution. If all nodes are down, 
your users will notice. If you have a good monitoring system, it will 
recognize first and alert you. So you need external monitoring.

I prefer SNMP since it is the only IETF standard in management protocols.

Mit freundlichen Grüßen,

Michael Schwartzkopff

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