Unknown connector agent status

The status of the connector agent is crucial to the InterChange Server Express system because it is a starting point for application events. A connector controller maintains the status of its connector agent and relays this information to System Manager.

The connector controller maintains the status of its connector agent by sending response requests to the connector agent at 15-second intervals.

If the connector agent does not respond after three consecutive checks, its status is assumed to be unknown. An unknown connector agent status might mean that the connector agent has failed or if the connector agent is installed across the network, the network connection might have failed.

Setting the ControllerStoreAndForwardMode property for the connector to true makes the connector controller wait for the connector agent to start before delivering pending events. Setting this property to false makes the connector controller fail collaboration requests. The failed collaboration requests are moved to the resubmission queue and can be resubmitted using Flow Manager. See Flow failures for more information.

Note:
Collaborations relying on an agent whose status is unknown can stop responding if the ControllerStoreAndForwardMode property is set to true. Collaborations stop responding until the connector agent is restarted and replies to the collaboration requests.

When the Pause when critical error occurs check box is selected for the associated collaborations, the collaborations bound to this connector pause upon receiving the unknown status of the connector agent. An error message is logged and e-mail is sent if the e-mail connector is configured.

Copyright IBM Corp. 2004