On 7 Nov 2013, at 9:30 pm, Robert H. <pacema...@elconas.de> wrote: >> 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.
Congratulations! This is the first valid sounding use of Delay I've ever heard :) You should file a bug. You're on CentOS, so it may not carry much weight for now, but it does provide a place for other people to "pile on". I'd suggest the wget option for now. > > - 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 > > _______________________________________________ > Pacemaker mailing list: Pacemaker@oss.clusterlabs.org > http://oss.clusterlabs.org/mailman/listinfo/pacemaker > > Project Home: http://www.clusterlabs.org > Getting started: http://www.clusterlabs.org/doc/Cluster_from_Scratch.pdf > Bugs: http://bugs.clusterlabs.org _______________________________________________ Pacemaker mailing list: Pacemaker@oss.clusterlabs.org http://oss.clusterlabs.org/mailman/listinfo/pacemaker Project Home: http://www.clusterlabs.org Getting started: http://www.clusterlabs.org/doc/Cluster_from_Scratch.pdf Bugs: http://bugs.clusterlabs.org
