Concurrent Job Limiting

Chapter 5 explains how to configure concurrent job limiting on your MPE system through Q- Xcelerator. Sections contained in Chapter 5 include:

"Adding a Concurrent Job Group."

"Changing a Concurrent Job Group Definition."

"Deleting a Concurrent Job Group Definition."

"Showing a Concurrent Job Group Definition."

A feature of Q-Xcelerator is the ability to limit the number of occurrences of a particular job (or group of jobs) that can run concurrently on the system.

Adding a Concurrent Job Group

To create a concurrent job group:

From the Main Menu, select Concurrent Job Maintenance (SUBMENU).

Figure 5.1 Q-Xcelerator Concurrent Job Maintenance Submenu screen

The Concurrent Job Maintenance Submenu screen will display the following options:

Add creates a concurrent job group.

Change modifies an existing concurrent job group.

Delete removes an existing concurrent job group definition.

Show lists all of the concurrent job groups configured.

Ignore causes the Q-Xcelerator monitor job to ignore the concurrent job group.

Recognize is the converse of the Ignore option.

Exit leaves the Concurrent Job Maintenance Submenu.

Select Add. The Add Concurrent Job Definition screen displays.

Specify the following parameters for the new job group:

Concurrent Job Definition

A user-defined, 16-character, free-form text name for the concurrent job group (required). The default is @.@ (all user accounts).

Logon ID

A field used to specify the logon ID. The format is Session, User.Account, Group. In this format, User.Account is required.

Concurrent Job Limit

The number of jobs in this group allowed to run simultaneously. Valid entries are from 0 through 9999. The default value is 0.

Respond the prompt with Y (Yes) to save the new job group definition to memory. Any other key will abort the addition of this entry.

Changing a Concurrent Job Group Definition

To change a previously defined concurrent job group definition:

From the Main Menu, select Concurrent Job Maintenance (SUBMENU).

Select Change. The Change Concurrent Job Group Definitions screen displays.

Type in the exact name of the job group. Information about that job group is displayed.

Figure 5.2 Q-Xcelerator Change Concurrent Job Group Definitions screen (example)

Change one or more of the job group parameters. (Move to next parameter by pressing the Enter key.)

To save changes to the record, enter Y (Yes). If you decide to keep the original definition, reply N (No).

Deleting a Concurrent Job Group Definition

To delete a previously defined job group:

From the Main Menu, select Concurrent Job Maintenance (SUBMENU).

Select Delete. The Delete Concurrent Job Group Definitions screen displays.

Type in the exact name of the job group. Information about that job group displays.

Enter Y (Yes) to delete the record from memory. If you decide to keep the definition, reply N (No).

Showing a Concurrent Job Group Definition

To show a list of all subqueue definitions:

From the Main Menu, select Concurrent Job Maintenance (SUBMENU).

Select Show. The Concurrent Job Definition List screen displays.

Figure 5.3 Q-Xcelerator Concurrent Job Definition List screen (example)

To return to the Concurrent Job Maintenance Submenu, press any key.

To return to the Main Menu, select Exit Submenu. Save changes, if desired.

NOTE Concurrent job limiting may be used even if no queue changes are desired.