PK31296: CRSQ TRANSACTION ABEND AICA STOPPED PROCESSING EXPIRING AID AIDS DFHCR4315 DFHAC2236 TRANSACTION CRSQ ABEND AICA DFHCRQ

Obtain the fix for this APAR.

APAR status

• Closed as program error.

Error description

• You are running CICS TS 2.2 and see a large build up of AID
  controls blocks in the AOR.  Every 8 hours transaction CSRQ
  should run and delete expired AID control blocks. While this
  task was running, processing MANY of these expired aids, it
  reached the ICVR value, so the task was abended AICA.  Since
  it abended, it did not kick itself off again, so CSRQ never
  runs again to delete expired AIDs.
  

Local fix

Problem summary

• ****************************************************************
  * USERS AFFECTED: All                                          *
  ****************************************************************
  * PROBLEM DESCRIPTION: Transaction CRSQ suffers ABENDAICA      *
  *                      while processing a large AID chain.     *
  ****************************************************************
  * RECOMMENDATION:                                              *
  ****************************************************************
  A large chain of AIDs builds up in an AOR. Many thousands of
  these AIDs are over 8 hours old. When the CRSQ transaction next
  runs, it suffers an ABEND AICA while purging AIDs which have
  exceeded the 8 hour purge delay interval. DFHCRQ does not
  voluntarily relinquish control to the dispatcher during the AID
  purge cycle. Failure to relinquish control exposes it to a
  timeout if it exceeds the ICVR runaway interval.
  If this happens, CRSQ will not run again and the AID chain may
  grow unchecked.
  

Problem conclusion

• DFHCRQ has been changed to periodically relinquish control to
  the dispatcher during its AID purge cycle.
  

Temporary fix

• FIX AVAILABLE BY PTF ONLY
  

Comments

APAR Information

• APAR is sysrouted FROM one or more of the following:

  PK29770

• APAR is sysrouted TO one or more of the following:

  UK18105

Modules/Macros

•    DFHCRQ
  

Fix information

• Fixed component name

  CICSTS 3.1 Z/OS

• Fixed component ID

  5655M1500

Applicable component levels

• R400 PSY UK18105

     UP06/09/23 P F609

Fix is available

• Select the PTF appropriate for your component level. You will be required to sign in. Distribution on physical media is not available in all countries.