Cluster failing to start, not fencing, or having other problems with a cluster name over 15 characters in RHEL 5 or 6
Issue
- The nodes were not able to form a cluster.
- CMAN not allowing the nodes to join the cluster.
- After rebooting all cluster nodes, cluster formed but clvmd was hanging and would not start.
- After a node was killed in my cluster, it was not fenced and I see messages referencing the wrong cluster name (the correct name of the cluster plus several characters which appear to be from the name of the fence device):
~~~
openais[5860]: [CMAN ] Node 1 conflict, remote cluster name='MY_PRODUCTION_CLUSTERnode3_iLO', local='MY_PRODUCTION_CLUSTER'
Environment
- Red Hat Enterprise Linux Server 5 (with the High Availability Add on)
- Red Hat Enterprise Linux Server 6 (with the High Availability Add on)
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