On 20/06/2013, at 11:50 PM, Doug Clow <doug.c...@dashbox.com> wrote:
> I'll do some experiments to see if I can get Corosync more reliable. I'm > using Corosync v1 as part of cman-corosync-pacemaker. RRP with one port on a > switch and the other port on a crossover cable between the two hosts > (although technically each port is still part of a vSwitch since its a VMware > VM). > > I do have fence-agents installed, but on Centos its missing the the null and > ssh devices. Andrew, if you mean I can have stonith devices without enabling > stonith globally thereby making success optional I will try that out. That > would be just what I need. No. I mean if you don't care if they succeed you can just turn fencing off. Or, use something like fence_dummy (not shipped) in a fencing level: http://clusterlabs.org/doc/en-US/Pacemaker/1.1-pcs/html/Pacemaker_Explained/_advanced_fencing_configurations.html > > Thanks all, > Doug > > > On Jun 20, 2013, at 1:38 AM, Sven Arnold <sven.arn...@localite.de> wrote: > >>>> >>>> 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. >>> >>> >> >> I had the impression that the OP used virtual machines on a local (virtual >> and private) network. I had such a setup with my first experiments and >> experienced (timing) issues with corosync messages until I turned snooping >> off. >> >> But you are right, on my production system I have turned on both >> multicast_snooping and multicast_querier. >> >> For reference, there was this bugreport that was helpful for me: >> https://bugzilla.redhat.com/show_bug.cgi?id=880035 >> >> Regards, >> >> Sven >> >> >> >> >> _______________________________________________ >> 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 _______________________________________________ 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
