The LEFTCLUSTER state may occur because a particular node panicked or hung. In this case, the procedure to clear LEFTCLUSTER is as follows:
Make sure the node is really down. If the node panicked and came back up, proceed to Step 2. If the node is in the debugger, exit the debugger. The node will reboot if it panicked, otherwise shut down the node, called the offending node in the following discussion.
Use the Cluster Admin GUI to log into one of the running nodes in the cluster while the offending node is suspended. Go to the CF main window and select Mark Node Down from the Tools pull-down menu, then mark the offending node as DOWN. This may also be done from the command line by using the following command:
# cftool -k
Reboot the offending node, it should automatically join the cluster.
Note
The state of the node is automatically changed from the state of LEFTCLUSTER in the state of DOWN so that the node may enter again when the offending node is reactivated.
