Re: questions on Job Message queue size

["Al Barsa, Jr." <barsa2@xxxxxxx>]

At 05:55 PM 11/02/1999 -0500, you wrote:


> I recently had an interactive job (Save entire
> system) abend because the job
> message queue filled up.  The backup ended abnormally.  My
> system values for
> QJOBMSGQMX and QJOBMSGQFL were still set at the IBM defaults.
> QJOBMSGQMX :   16 MG - job message queue maximum size
> QJOBMSGQFL:         *NOWRAP - job
> message queue action
> QJOBMSGQSZ:     16 MG - job message queue initial
> size
> QJOBMSGQTL:         24 MG - job
> message queue maximum initial size
QJOBMSGQSZ and QJOBMSGQTL are no longer used.

QJOBMSGQFL should be set to *WRAP or *PRTWRAP.  

Here is the text from my COMMON presentation of the two pertinent system
values:

Name:        QJOBMSGQMX                                       V2 R3.0

Description:    Maximum Size of Job Message Queue

IBM Initial Value:  16 MB

Lower Limit Value:  8

Upper Limit Value:  64  

Length & Type:   Decimal:     5.0

Comments:The system values QJOBMSGQMX and QJOBMSGQFL replace QJOBMSGQSZ and QJOBMSGQTL effective with V2R3M0.

When this maximum size is reached for any job message queue, that job message queue is considered to be full and the action specified by QJOBMSGQFL is taken to handle the size.

Effective with V2R3M0, at job termination, job message queues are truncated to 29K.  The initial size of a job message queue is no longer in the user's control.

Name:        QJOBMSGQFL                                       V2 R3.0

Description:    Job Message Queue Full Action

IBM Initial Value:  '*NOWRAP'

Length & Type:   Character:  10 


Valid Values and their Meanings:

'*NOWRAP'  Do not wrap the job message queue.  The job will end abnormally.

'*WRAP'   Wrap the job message queue.  The job will continue, and the messages in the job message queue will be overwritten.

'*PRTWRAP' Print the contents of the job message queue as a job log, and then wrap the job message queue. The job will continue, and the messages in the job message queue will be overwritten.

Comments:The system values QJOBMSGQMX and QJOBMSGQFL replace QJOBMSGQSZ and QJOBMSGQTL effective with V2R3M0.

Migrating to RISC:This system value must be changed to *PRTWRAP during the migration from CISC to RISC.

Al

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