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4.4.2. Removing a Corosync Node

Because the messaging and membership layers are the authoritative source for cluster nodes, deleting them from the CIB is not a reliable solution. First one must arrange for corosync to forget about the node (pcmk-1 in the example below).
On the host to be removed:
  1. Stop the cluster: /etc/init.d/corosync stop
Next, from one of the remaining active cluster nodes:
  1. Tell Pacemaker to forget about the removed host:
    # crm_node -R pcmk-1
    This includes deleting the node from the CIB

Note

This proceedure only works for versions after 1.1.8