PI25129: CF STRUCTURE RECOVERY: CSQY220I CSQY222E STORAGE SHORTAGE IN THE QUEUE MANAGER ADDRESS SPACE.

Obtain the fix for this APAR.

APAR status

• Closed as program error.

Error description

• CSQY220I CSQSCTL Queue manager storage usage
  CSQY222E CSQSCTL Queue manager is critically short of local
           storage - take action
   Storage shortage in the queue manager address space. When the
  queue manager does a CF structure recovery, it creates a new
  storage pool for processing the logs. When recovery is finished,
  this pool is freed. Due to the storage alignment requirements
  for CF operations, this is a special pool, and some of the
  storage is not freed correctly. Due to the large number of
  recovery attempts, the queue manager leaks a large amount of
  storage (around 700MB) and uses up most of the available
  storage below the bar.
  

Local fix

Problem summary

• ****************************************************************
  * USERS AFFECTED: All users of WebSphere MQ for z/OS Version 7 *
  *                 Release 1 Modification 0.                    *
  ****************************************************************
  * PROBLEM DESCRIPTION: The storage usage in the queue manager  *
  *                      increases for each structure recovery   *
  *                      that is processed.                      *
  *                      Eventually the queue manager runs short *
  *                      on storage and issues messages CSQY220I *
  *                      and CSQY222E. S878 abends may also      *
  *                      occur.                                  *
  ****************************************************************
  * RECOMMENDATION:                                              *
  ****************************************************************
  When the queue manager recovers a CF structure, a storage pool
  is allocated to hold information on the relevant messages that
  are to be restored.
  The storage pool is released again after recovery completes.
  However, given that the storage required for CF operations needs
  to be page aligned, the normal buffer infrastructure is in a
  special case scenario and acquires additional storage.
  This additional storage is not released when the buffer pool is
  freed, causing the leak.
  Each structure recovery leaks at least x7E0000 bytes of storage.
  

Problem conclusion

• The code has been changed to correctly release all the storage
  associated with a given storage pool.
  100Y
  CSQSFPL
  

Temporary fix

• *********
  * HIPER *
  *********
  

Comments

APAR Information

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

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

  PI27324 UI22502

Modules/Macros

• CSQSFPL
  

Fix information

• Fixed component name

  WMQ Z/OS V7

• Fixed component ID

  5655R3600

Applicable component levels

• R100 PSY UI22502

     UP14/11/13 P F411 ¢

Fix is available

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