CICS will then retry the GETMAIN from the suspended tasks and if successful, CICS will turn off the SOS condition. Otherwise, the SOS will continue. This action also happened when a FREEMAIN happens during SOS.
Friday, December 22, 2023
CICS GETMAIN SOS
GETMAIN is issued by user program or by CICS routines on behalf of the user task. Storage will be allocated from existing subpool page if available, or a new page if there is free page in DSA. When storage becomes a not available to satisfy a GETMAIN request, the task will be suspended with a DCI value set. The system enters a SOS condition and program compression is activated to try to release storage.
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