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John Poulakos
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Joined: 13 Jun 2012
Posts: 178
Location: United States
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| We have a systems programmer who says application abends are using up address spaces, so he has to IPL. I have never heard of this before and he isn't very informative. Can anyone explain this to me? I have looked all over the internet and can't find a thing about this. |
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enrico-sorichetti
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Joined: 14 Mar 2007
Posts: 10891
Location: italy
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google with
address space not reusable reason
and you will get a few links whit the explanation |
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steve-myers
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Joined: 30 Nov 2013
Posts: 917
Location: The Universe
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Most ordinary ABENDs do not damage an address space, or at least do so little damage they can recover.
I've long had the theory that the storage map in the main part of an address space and/or its LSQA can be damaged, but you should be able to recover that by a $PI and $SI.
What can be difficult is CSA and SQA can be damaged either as really damaged or just storage allocated and never freed. This is a conceptual weakness in the MVS model. Fortunately it's pretty rare, unless you have your applications or vendor applications that screw things up. Finding them can be daunting. THAT pretty much needs an IPL. |
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Robert Sample
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Joined: 06 Jun 2008
Posts: 8700
Location: Dubuque, Iowa, USA
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| We use ADABAS and it marks address spaces non reusable when a database is brought down (we bring them down for offline backups for a clean disaster recovery). We bumped up RSVNONR in SYS1.PARMLIB(IEASYS00) to ensure we didn't run short between IPLs. |
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John Poulakos
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Joined: 13 Jun 2012
Posts: 178
Location: United States
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Thank you, gentlemen.
I believe the root cause of the abends and address space "loss" is some authorization errors trying to access a TEST unix directory tree. Why on Earth TEST is locked down makes no sense to me! I am frequently at odds with things our systems programming staff do, so this is nothing new. I only have to deal with them for a few more months until I retire again.
I was able to view SYS1.PARMLIB(IEASYS00) and found they updated it when they did the last IPL... they didn't say anything though. |
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enrico-sorichetti
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John Poulakos
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Joined: 13 Jun 2012
Posts: 178
Location: United States
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Why do I believe wrong?
There are no abends related to the user ID in question for anything but trying to update test unix folders with IKJEFT01 and getting JCL errors. |
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