IV46543: DELAYED SHUTDOWN WHEN THE -P (PRE-EMPTIVE) FLAG IS USED WITH END MQM ON WEBSPHERE MQ VERSION 7

WebSphere MQ V7.5 Fix Pack 7.5.0.3
Fix Pack 7.1.0.5 for WebSphere MQ V7.1

APAR status

• Closed as program error.

Error description

• An extended delay with queue manager shutdown may be observed
  when using the pre-emptive (-p) option for the endmqm command.
  This is the result of WMQ internal monitoring.  WMQ will check
  for the restartable MQ processes and restart any not found to
  be active.  WMQ trace shows that during a pre-emptive end, the
  monitoring process doesn't take into account the current queue
  manager status (ending) and repeatedly restarts the missing
  WMQ processes.  This results in a delay reaching an ended state.
  

Local fix

Problem summary

• ****************************************************************
  USERS AFFECTED:
  You may be impacted by this problem if you are using the
  pre-emptive (-p) option for the endmqm command.
  
  Platforms affected:
  All Distributed (iSeries, all Unix and Windows)
  ****************************************************************
  PROBLEM SUMMARY:
  A restartable process such as the amqfqpub process may be
  repeatedly restarted by the queue manager during an endmqm -p
  shutdown. Each time, the restartable process ends because it
  detects that the qmgr is ending; and each time, the queue
  manager restarts it because it is missing. This cycle may repeat
  many times, until the queue manager has completed other shutdown
  work.
  

Problem conclusion

• The problem has been eliminated by not allowing restartable
  processes to be restarted during queue manager shutdown.
  
  ---------------------------------------------------------------
  The fix is targeted for delivery in the following PTFs:
  
                     v7.1
  Platform           Fix Pack 7.1.0.5
  --------           --------------------
  Windows            7.1.0.5
  AIX                7.1.0.5
  HP-UX (Itanium)    7.1.0.5
  Solaris (SPARC)    7.1.0.5
  Solaris (x86-64)   7.1.0.5
  iSeries            7.1.0.5
  Linux (x86)        7.1.0.5
  Linux (x86-64)     7.1.0.5
  Linux (zSeries)    7.1.0.5
  Linux (Power)      7.1.0.5
  
  Version    Maintenance Level
  v7.5       7.5.0.3
  
  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

  WMQ LIN X86 V7

• Fixed component ID

  5724H7224

Applicable component levels

• R710 PSY

     UP