The Registry Server controls the lifecycle of the Request Manager processes. Upon startup, the Registry Server creates an instance or instances of the Request Manager, which processes requests for a duration that is specified by the Automatic Recycle configurations. For more information about Automatic Recycle, see Configuring the Rational ClearQuest Web Request Manager for Automatic Recycle.
The maximum number of Request Managers that can exist on one computer is equal to the number of Central Processing Units (CPUs) available. If the number of Request Managers is configured incorrectly or it exceeds the number of available CPUs, then the Registry Server creates as many Request Managers as there are Central Processing Units (this is the default behavior).
For examples of how multiple Request Managers startup up and shut down with the Automatic Recycle feature enabled, see Automatic Recycle based on time interval and Automatic Recycle based on number of requests.