Sun Cluster 3.0 Data Services Installation and Configuration Guide

Oracle Listener Fault Monitor

The Oracle listener fault monitor checks the status of an Oracle listener.

If the listener is running, the Oracle listener fault monitor considers a probe successful. If the fault monitor detects an error, the listener is restarted.

The listener probe is started through pmfadm to make it highly available. If it is killed, it is automatically restarted by pmf.

If a problem occurs with the listener during a probe, the probe tries to restart the listener. The maximum number of times it attempts the restart is determined by the value set in the resource property Retry_count. If, after trying for the maximum number of times, the probe is still unsuccessful, it stops the fault monitor and does not switch over the resource group.