This parameter is not supported with Integration Server 9.0 and higher. Specifies the amount of time, in milliseconds, that a node executing a clustered polling notification can be late before it is assumed to have failed. In general, this setting should be equal to the amount of drift anticipated on the server clocks. If not set, the secondary instance of the polling notification will change to the default maxLockDuration value of 180000 for the shared cache.