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coolman · Posted: Wed Jun 02, 2004 1:27 pm Post subject: U0775 abend

Folks,
I'm running an IMS Program in batch. I'm getting an U0775 abend. This is what I can find in the manual.

Bithead · Posted: Wed Jun 02, 2004 1:49 pm Post subject:

This is pretty tricky to debug but I would start by increasing the REGION sizes on both JOB and STEP cards. Be aware that if you are running a PROC, then the region size might be a parameter.

If that does not work, then it might be a problem with too many locks. PIMAX is a setting on the IMS Control Region that controls the amount of storage set aside for enqueues (database locks). If you are doing alot of updates, consider adding checkpoint logic. If you are doing alot of reads with the occasional update, consider using a seperate PCB for the read with a procopt of G.

coolman · Posted: Wed Jun 02, 2004 2:50 pm Post subject:

Why both JOB and STEP. Would it not be sufficient if we just increase it for the STEP?
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Bithead · Posted: Wed Jun 02, 2004 2:52 pm Post subject:

In my experience, no. Same with TIME=.

coolman · Posted: Wed Jun 02, 2004 3:05 pm Post subject:

Would REGION=0M help? or should I have to explicitly specify the region
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Bithead · Posted: Wed Jun 02, 2004 3:07 pm Post subject:

It should.

coolman · Posted: Tue Jun 08, 2004 3:02 pm Post subject:

Bithead. Thanks for your help. The REGION parm didn't work. But the checkpoint logic per your suggestion worked
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