Setting Parameters for the Application Engine Server

This server is responsible for running requests with a process type of Application Engine.

Parameter	Description
Max Instances	Indicates the maximum concurrency set for process types with a generic process type of Application Engine, as defined on the Server Definition page in Process Scheduler Manager.
Recycle Count	Indicates the number of services after which PSAESRV automatically restarts. If this is set to 0 (default), PSAESRV is never recycled. See System and Server Administration: Recycle Count.
Allowed Consec Service Failures	Indicates the number of consecutive service failures after which PSAESRV automatically restarts. Server processes must be intermittently recycled to clear buffer areas. If this is set to 0 (default), PSAESRV is never recycled.
ScheduledQuery - DirtyRead	This parameter only applies to DB2. Indicates if dirty reads are enabled. Setting this to 1 enables the application server to read uncommitted data from a table. If this is set to 0 (default), dirty reads are disabled.

PSAESRV Max Instance and Application Engine Max Concurrent

By default, three instances of the PSAESRV are booted in PeopleSoft Process Scheduler to allow the maximum concurrent processes, as specified in the server definition. If this server is intended to increase or decrease the maximum concurrent for PeopleSoft Application Engine, you must change Max Instances in the PSAESRV section of the process configuration file to match the Max Concurrent value for PeopleSoft Application Engine. PeopleSoft Process Scheduler schedules the maximum concurrent processes for PeopleSoft Application Engine based only on the minimum number from both values.

Note:

Because PSAESRV runs both of the Application Engine and Optimization Engine processes, you must include the Max Concurrent for the Application Engine and Analytic Engine process type when you configure the number of PSAESRV tuxedo processes in the domain.

Select PeopleTools, and then Process Scheduler, and then Process Scheduler Servers to access the Server Definition page.

This example illustrates the fields and controls on the Server Definition page.

PSAE Versus PSAESRV

You should use PSAESRV because it delivers improved system performance.

If PeopleSoft Process Scheduler was set to not start any instance of PSAESRV in Microsoft Windows or UNIX, but the server definition corresponding to this server allows you to run PeopleSoft Application Engine, then Process Scheduler initiates an Application Engine program using the $PS_HOME\bin\psae executable.