Queueing or rejecting program start requests

If a program start request arrives when the current number of prestart jobs is less than the number specified in the MAXJOBS attribute on the prestart job entry, and none of the prestart jobs are available to handle the program start request, you have the option to have this new request rejected or queued.

To reject or queue the program start request, use the WAIT attribute on the prestart job entry.

WAIT(*NO) means that if no prestart job is available immediately, the program start request is rejected.

WAIT (*YES) means that if no prestart job is available immediately and no prestart job can be started due to MAXJOBS to service the program start request, the program start request is rejected. If no prestart job is available immediately, but additional prestart jobs can be or have been started, the program start request is queued.

This command adds a prestart job entry for the PGM1 program in the QGPL library to the PJSBS subsystem description contained in the QGPL library. The entry specifies that 15 prestart jobs (program PGM1 in the QGPL library) are started when subsystem PJSBS in the QGPL library is started. When the pool of available prestart jobs is reduced to four (because the prestart jobs are servicing requests specified for program PGM1 in the QGPL library), ten additional jobs are started. If no prestart jobs are available for this entry when a request is received, the request is rejected.

ADDPJE   SBSD(QGPL/PJSBS)  PGM(QGPL/PGM1)  INLJOBS(15)
         THRESHOLD(5)  ADLJOBS(10)  WAIT(*NO)