IT41323: Partial repository queue manager prematurely reports AMQ9456 warning or erroneous MQRC_UNKNOWN_OBJECT (2085)

APAR status

• Closed as program error.

Error description

• A partial repository queue manager reports an AMQ9456 warning
  (update not received) for an object that is in active use, even
  though internal cluster status dumps indicate that an update is
  not yet due for this object.
  
  The same issue can result in erroneous MQRC 2085
  (MQRC_UNKNOWN_OBJECT) errors for an object that has already
  expired.
  

Local fix

Problem summary

• ****************************************************************
  USERS AFFECTED:
  Users of IBM MQ Queue Manager Clusters V9.2
  
  
  Platforms affected:
  MultiPlatform
  
  ****************************************************************
  PROBLEM DESCRIPTION:
  When a clustered queue is used on a partial repository, a
  subscription is created requesting that the full repository
  sends the queue definition when it is updated. Errors in
  calculating the expiry time of this subscription can result in
  the subscription expiring early (resulting in AMQ9456), or
  expiring after the object has expired (leading to erroneous MQRC
  2085 (MQRC_UNKNOWN_OBJECT) errors.
  

Problem conclusion

• The repository manager subscription maintenance routine, has
  been changed to calculate the expiry time of a subscription on a
  partial respository queue manager that has expired and entered
  its grace period correctly, and to correctly re-subscribe when
  an object with a subscription in the grace period is used again.
  
  ---------------------------------------------------------------
  The fix is targeted for delivery in the following PTFs:
  
  Version    Maintenance Level
  v9.2 LTS   9.2.0.20
  v9.3 LTS   9.3.0.10
  v9.x CD    9.3.1
  
  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

  MQ BASE V9.2

• Fixed component ID

  5724H7281

Applicable component levels