openSUSE High Availability

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September 2013

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2 discussions

[opensuse-ha] multicast problems with cluster of KVM guests
by Tim Serong 27 Sep '13

27 Sep '13

Hi All, I spent quite some time last week bashing my head against a weird multicast problem. I have openSUSE 12.3 on my desktop, running a cluster of openSUSE 13.1 beta VMs, configured for multicast. After a while one then the other node would start spewing "corosync [TOTEM] Retransmit List: ..." to syslog, and the cluster would break. This seems to be the same issue discussed here: https://bugzilla.redhat.com/show_bug.cgi?id=880035 If anyone else hits this problem, you can work around it by running the following command on the host: # echo 1 > /sys/class/net/virbr0/bridge/multicast_querier Substitute your bride interface name for "virbr0" as appropriate. Alternately, configure the cluster to use udpu instead of multicast. I've also added this to the wiki page at http://en.opensuse.org/openSUSE:High_Availability Regards, Tim -- Tim Serong Senior Clustering Engineer SUSE tserong(a)suse.com -- To unsubscribe, e-mail: opensuse-ha+unsubscribe(a)opensuse.org To contact the owner, e-mail: opensuse-ha+owner(a)opensuse.org

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[opensuse-ha] Welcome to opensuse-ha
by Tim Serong 17 Sep '13

17 Sep '13

Greetings, Welcome to opensuse-ha. This list is for discussion of high availability clustering on openSUSE. This includes: - The base cluster stack, i.e. corosync and pacemaker - Management tools such as crmsh and hawk - Clustered filesystems (e.g.: ocfs2) - Replicated storage (drbd) - Basically, anything in network:ha-clustering:* on OBS is on topic :) Please also see the wiki page at: https://en.opensuse.org/openSUSE:High_Availability Happy clustering! Tim -- Tim Serong Senior Clustering Engineer SUSE tserong(a)suse.com -- To unsubscribe, e-mail: opensuse-ha+unsubscribe(a)opensuse.org To contact the owner, e-mail: opensuse-ha+owner(a)opensuse.org

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