JES2 job execution commands

JES2 allows you to issue commands to control job execution in the following ways:

Route specified jobs for execution

Issue the $R XEQ,D= command to route specified jobs to another node (D=) for execution. You can use the J= parameter to specify a particular batch job to be routed or use the R= parameter to specify that all jobs in the system are to be routed to the node named on the D= parameter.

You can still control the execution of jobs you've routed to another node. For a description of the commands you can use, see “Controlling Jobs at Another Node” .

Stop a job

Use the $C job command to cancel a job or time sharing user (TSU) immediately, regardless of the member of the MAS on which the job is executing. To stop a job after it has completed its current activity and remove all traces of it from the system, issue the $P job command. STCs, however, can only be cancelled using these commands after they have executed. (Use the MVS™ CANCEL command if you wish to cancel these types of jobs during execution.)

The $C job command terminates the scheduling of a job or range of jobs. If the job is in execution, you can also request a storage dump to diagnose a problem by specifying $C job,D. Issue the $C job,P command to purge the job output.

The $P job command cancels job output and purges all information about the job from the system. The $P job,Q= command allows you to specify up to 36 classes of output to be cancelled for the job. However, if data for the job remains queued in an output class you did not specify, JES2 does not cancel the job from the system.

The CANCEL parameter on the $P SPOOL,V=volser,CANCEL command cancels all jobs on the volume that can be cancelled. If any job being cancelled has data sets residing on another volume, those data sets are also cancelled. JES2 issues the $HASP890 message to display the status of cancelled jobs.

Restart a currently executing job

Issue the $E Jn[-n] command to queue one or more batch jobs for re-execution, regardless of which member of the MAS the job is on. If you wish to restart a job, butdo not want it to execute at this time, first hold the job using the $H command, then issue the $E command.

Change the execution class, scheduling priority, or affinity

Use the $T job command to change these characteristics for a single job or a specified range of jobs.

The $T JOBCLASS(n),XBM=xxxxxxxx command allows you to specify that all jobs in the specified class (n) be processed by the named execution batch monitor procedure.