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
--
--
Robert
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