20.06.2013 03:12, Sven Arnold wrote: > Hi Doug, > >> I have some 2-node active-passive clusters that occasionally lose >> Corosync connectivity. The connectivity is fixed with a reboot. >> They don't have shared storage so stonith doesn't have to happen for >> another node to take control of the resource. Also they are VMs so I >> can't use a standard stonith method. > > If you use virtual machines connected via a local bridge you could try > to disable multicast snooping on your bridge to improve corosync > connectivity. Similar to: > > echo "0" > /sys/class/net/virbr0/bridge/multicast_snooping
That results in multicast packets are broadcasted to all bridge ports. I prefer to have igmp querier turned on on a central switch. _______________________________________________ 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
