IT34118: Miscalculation of expiry time for SYSTEM.CLUSTER.HISTORY.QUEUE messages.

APAR status

• Closed as program error.

Error description

• The expiry time of messages put to the queue
  SYSTEM.CLUSTER.HISTORY.QUEUE is incorrectly set to 15 days
  rather than 150 days.
  

Local fix

• N/A
  

Problem summary

• ****************************************************************
  USERS AFFECTED:
  Users of the SYSTEM.CLUSTER.HISTORY.QUEUE may be affected by
  this problem.
  
  
  Platforms affected:
  MultiPlatform
  
  ****************************************************************
  PROBLEM DESCRIPTION:
  The SYSTEM.CLUSTER.HISTORY.QUEUE (SCHQ) was introduced in IBM MQ
  version 7.0.1
  (https://www.ibm.com/support/pages/new-queue-introduced-refresh-
  pack-websphere-mq-701-called-systemclusterhistoryqueue).  The
  default expiry for messages put to this queue is documented at
  150 days, which consists of:
  
  [Cluster object lifetime (90 days)] + [2 * Cluster 'grace'
  period (2*30 days)]
  
  Expiry time is expressed in tenths of a second but a coding
  error meant that the expiry time for messages on this queue were
  set as if they were seconds.
  
  Dumping a message from the SCHQ shows that the expiry is out by
  a factor of 10:
  
  (dmpmqmsg output)
  
  A EXP 12959201 = 14.999 days
  

Problem conclusion

• The code was corrected so that the expiry for messages on the
  SCHQ matches the documented 150 days.
  
  ---------------------------------------------------------------
  The fix is targeted for delivery in the following PTFs:
  
  Version    Maintenance Level
  v9.1 LTS   9.1.0.9
  v9.2 LTS   9.2.0.3
  v9.x CD    9.2.3
  
  The latest available maintenance can be obtained from
  'WebSphere MQ Recommended Fixes'
  http://www-1.ibm.com/support/docview.wss?rs=171&uid=swg27006037
  
  If the maintenance level is not yet available information on
  its planned availability can be found in 'WebSphere MQ
  Planned Maintenance Release Dates'
  http://www-1.ibm.com/support/docview.wss?rs=171&uid=swg27006309
  ---------------------------------------------------------------
  

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:

Fix information

• Fixed component name

  IBM MQ BASE MP

• Fixed component ID

  5724H7271

Applicable component levels