[Pacemaker] Upgrade of Pacemaker on CentOS 6.4 to 1.1.10 - Delay RA missing ...

[Robert H.]

> This does a reasonable job of explaining:
>    http://blog.clusterlabs.org/blog/2013/pacemaker-and-rhel-6-dot-4/

I see, thanks for the hint ... small step for man, huge step for 
mankind .. (or something like this :))

> I would be interested to know what for.

We have a setup of load balancing via OSPF (ECMP). We must make sure 
that some service is stopped not before 30 seconds (or better OSPF 
heartbeat timeout) after the stop of the OSPF deamon (quagga). This 
allows seamless failover without any downtime.

- OSPF session active and traffic is routed to our load balancer
- crm node standby
- now OSPFD should be stopped
  (now ~<OSPF dead detection timeout> seconds, traffic is still routed 
to our node, which we want to service, in our case ~10sec)
- we wait 30 seconds (with Delay)
  (after ~<OSPF dead detection timeout> seconds, no more traffic to our 
"standby node")
- now the load balanced service should be stopped

For this we need Delay :)

Any other suggestion (besides writing a custom OSPF resource agent that 
waits itself for the node to disappear on the router) ?

Regards,
Robert

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Robert