PH47782: RECOVER CFSTRUCT FAILS WHEN RECOVERING MANY MESSAGES

Obtain the fix for this APAR.

APAR status

• Closed as program error.

Error description

• Processing of a RECOVER CFSTRUCT command uses storage in the
  queue manager MSTR address space to track messages that are
  being recovered.
  
  If the command is issued for a structure which has held a very
  large number of messages since the last structure backup, the
  storage allocated to RPLE control blocks can exhaust the
  31 bit private storage of the MSTR address space causing the
  structure recovery to fail.
  .
  Additional symptoms and keywords:
  Subpool 229 SP 229 SP229
  

Local fix

Problem summary

• ****************************************************************
  * USERS AFFECTED: All users of IBM MQ for z/OS Version 9       *
  *                 Release 1 Modification 0, Release 2          *
  *                 Modification 0 and Release 3 Modification 0  *
  ****************************************************************
  * PROBLEM DESCRIPTION: When running a RECOVER CFSTRUCT         *
  *                      command for a structure to which        *
  *                      a large number of messages have been    *
  *                      put since the last backup, it's         *
  *                      possible for the RECOVER CFSTRUCT to    *
  *                      fail.                                   *
  ****************************************************************
  Code involved in the recovery of messages from a CFSTRUCT
  uses 31-bit storage to track message recovery. If a
  large number of messages in the CFSTRUCT have not been
  backed up at the time of recovery, the 31-bit storage
  can be exhausted, causing the RECOVER CFSTRUCT to fail.
  

Problem conclusion

• The code that allocates storage to track message recovery
  has been changed to use 64-bit storage, allowing the
  recovery of large structures.
  

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:

  UI91565 UI91566 UI91567

Modules/Macros

• CSQERCF1 CSQERCF2 CSQERRPB
  

Fix information

• Fixed component name

  IBM MQ Z/OS V9

• Fixed component ID

  5655MQ900

Applicable component levels

• R100 PSY UI91567

     UP23/06/15 P F306 ¢

• R200 PSY UI91566

     UP23/06/15 P F306 ¢

• R300 PSY UI91565

     UP23/06/15 P F306 ¢

Fix is available

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