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CICS exhausted FREE OSCOR

 
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hootan

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Joined: 31 May 2020
Posts: 1
Location: IR

PostPosted: Sun May 31, 2020 12:36 pm    Post subject: CICS exhausted FREE OSCOR
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We have a problem in operational environment that makes our service down.
We use IMS v11 as a DBMS and CICS 4.1 as a transaction manager. CICS use DBCTL thread to access the IMS databases.
When DBCTL returns a nonzero response code (such as 0777(deadlock)) for a DL/I request has been issued from an application program, the CICS free OSCOR space (LSQA/SWA/USER) decreases and doesn’t free up.
Finally when the CICS free OSCOR space becomes below 20K, CICS terminates abnormally with GETMAIN error or transactions get AEXY ABEND.
Why the CICS can’t free up OSCOR space. Is there any solution to release this space
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