CM_TIMEOUT Connection Manager configuration parameter

The CM_TIMEOUT parameter specifies the number of seconds that a cluster of database servers waits to receive events from the failover-arbitrator Connection Manager. If the specified period elapses with no events received by the cluster, the primary server promotes the Connection Manager with the highest priority to the role of failover arbitrator.

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The CM_TIMEOUT parameter is optional, and applies to CLUSTER connection units.

If the CM_TIMEOUT parameter is not specified, the timeout is 60 seconds.


In the following example, if 100 seconds elapse without the servers of a high-availability cluster receiving any events from the current failover arbiter, the primary server of the cluster promotes an active Connection Manager to the role of failover arbiter:

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