Why does a cluster node fence other nodes that haven't started cman yet when it initially joins the cluster in RHEL 4, 5, or 6?
Issue
- When starting
cmanon node 1, it fences node 2 (which has not yet startedcman). - Nodes that are not in the cluster are rebooted when other nodes join the cluster for the first time.
- Two nodes in cluster got rebooted. Both nodes in same cluster and both nodes in the cluster sent a reboot signal to each other, one fencing the other first then the other when it was coming back up.
- Why is my cluster node powering off a node that isn't in the cluster when it is booted up?
Environment
- Red Hat Enterprise Linux (RHEL) 5 or 6 with the High Availability Add On
- Red Hat Cluster Suite (RHCS) 4
fencedevicesdefined in/etc/cluster/cluster.conf, andfencedenabled for use by the cluster (FENCE_JOIN="yes"or left unset in/etc/sysconfig/cman)<fence_daemon clean_start="0">or left unset in/etc/cluster/cluster.conf
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