A wizard leads you through the cleanup of your execution history.
To cleanup execution history:
Detailed results of the execution history cleanup are shown. Select
given tabs to see more information on any failed application or component
By default, a sweep job is automatically run at set intervals to
cancel or kill cleanup requests that have hung. The settings for the sweep can
be configured, including whether or not to run the job at all. For details,
refer to Knowledgebase item