PH39714: ABEND0C4 IQCQMR50-AT-MR5ULOC X'14C' USING QCF PANELS TO DEQUEUE AN APPC TRANSACTION

Obtain the fix for this APAR.

APAR status

• Closed as program error.

Error description

• When QCF Unload is performed while an APPC client is reading an
  APPC message, QCF UNLOAD gets the LUNAME/TPNAME and returns
  AIBREASN=A068.  At that time an ABENDS0C4 occurs because QCF
  UNLOAD refers to an invalid address when getting the LUNAME /
  TPNAME.                         Keywords: IQCQMR50 IQCQMR5E S0C4
  

Local fix

• A temporary workaround for this ABEND is to refrain from running
  QCF UNLOAD (refrain from deleting messages using QCF ISPF user
  interface) when the APPC Client is reading the message.
  

Problem summary

• ****************************************************************
  * USERS AFFECTED: All IBM IMS Queue Control Facility for z/OS  *
  *                 Version 3 Release 2 (FMID=H0GN320) users.    *
  ****************************************************************
  * PROBLEM DESCRIPTION: ABEND0C4 IQCQMR50-AT-MR5ULOC X'14C'     *
  *                      which causes IMS region to fail.        *
  *                      When QCF Unload is performed while an   *
  *                      APPC client is reading an APPC message, *
  *                      QCF Unload gets the LUNAME/TPNAME and   *
  *                      returns AIBREASN=A068. At that time an  *
  *                      ABEND0C4 occurs because QCF Unload      *
  *                      refers to an invalid address when       *
  *                      getting the LUNAME/TPNAME.              *
  ****************************************************************
  * RECOMMENDATION: Apply the maintenance for this APAR.         *
  ****************************************************************
  When QCF Unload encounters an A068 (REQUESTED DEST IS BEING
  READ) during the Unload process of the APPC destination, it
  causes 0C4 because it treats incorrectly the LUNAME string
  field as an address field.
  

Problem conclusion

• QCF has been changed to treat the LUNAME/TPNAME correctly.
  

Temporary fix

Comments

APAR Information

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

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

  UI76846

Modules/Macros

• IQCQMR5E IQCQMR5F IQCXRPF0 IQCXSVF0
  

Fix information

• Fixed component name

  IMS QUEUE CNTL

• Fixed component ID

  5697E9900

Applicable component levels

• R320 PSY UI76846

     UP21/08/21 P F108 ¢

Fix is available

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