[Pacemaker] Cluster with DRBD : split brain

Hugo Deprez hugo.deprez at gmail.com
Fri Jul 15 05:58:30 EDT 2011

Dear community,

I am running on Debian Lenny, a cluster with corosync. I have :

One DRBD partition and 4 resources :

fs-data    (ocf::heartbeat:Filesystem):
mda-ip     (ocf::heartbeat:IPaddr2):
postfix    (ocf::heartbeat:postfix):
apache     (ocf::heartbeat:apache):

Last night something happens and DRBD had a 'split brain'. I think the split
brain come from

The resources was still running on the node 1.

I checked the corosync logs and seems that something went wrong, I would
like to understand what happen, in order to improve my cluster

Please find attach  the log file.

It seems that the cluster tried to migrate the resources to the other node
but didn't succeed ?

Any help appreciated.


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