Test Events

The iProcess Engine uses an event mechanism to handle the inter-process communication. If the event mechanism does not work normally, the functions based on event communication are disabled. For example,

•

The processes cannot be managed.

•

The change of process attributes cannot be updated in real-time.

The iProcess Engine allows you to test the event mechanism manually by using the following command:

swadm evloopback

If the event mechanism works correctly, a loopback message will be received. Otherwise, an error message is displayed.

When Process Sentinel starts, a START event is issued, or a SHUTDOWN event is issued, the event mechanism is tested automatically. For more information, see Starting iProcess Engine, Issue a Start-up Event, or Issue a Shutdown Event.

Example

The following message is displayed if the events work correctly.

Events working correctly. Received loopback message in 1 second(s).

Otherwise, an error message similar to the following is displayed:

WARNING: Failed to receive the message in 10 seconds.