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Monitoring and Managing Engine Sessions
Chapter 6 Managing Process Execution 173
Process Instance Termination
Process termination occurs when the engine places a process instance in either a
COMPLETED state or an ABORTED state.
Completed Process Instances
An engine completes a process instance when the Last activity reaches a
COMPLETED state.
Aborted Process Instances
An engine aborts a process instance in the following situations:
• the process instance is stalled—no activities are in an ACTIVE or READY state
(that is, all are either COMPLETED or PENDING) and no timers are active.
• an ACTIVE activity (including a Subprocess activity) is placed in an ABORTED
state and has no OnAbort router method specified.
• a system manager requests that a process be aborted.
• an exception is thrown on an activity method.
When a process instance is aborted, any uncompleted activities in the process are
aborted, all process timers are stopped, and all process attribute updates are
discarded.
Monitoring and Managing Engine Sessions
Since the engine is coordinating work being performed by client applications that
have sessions with the engine, one dimension of system management concerns the
number and state of such sessions.
This section describes how to perform the following tasks:
• Monitor the state of a session
• Manage one or more sessions
NOTE This section uses mouse popup menu commands to describe how to
perform various operations. You can also use other methods of
accessing commands, as described in Chapter 3, “The iIS Console.”