IV20204: MQ 7.0.1 : ENDMQM -I TAKES SEVERAL MINUTES TO COMPLETE IF ALL THE CHANNELS HAVE BEEN STOPPED BEFORE THE COMMAND IS ISSUED

Fix Pack 7.1.0.2 for WebSphere MQ V7.1
WebSphere MQ V7.0 Fix Pack 7.0.1.10
WebSphere MQ V7.0.1 for i5/OS Fix Pack 7.0.1.10

APAR status

• Closed as program error.

Error description

• Customer is migrating from WebSphere MQ V6 to V701 . To stop a
  queue manager, a script is first executed which stops all the
  channels and then the queue manager is ended using endmqm -i.
  
  In WebSphere MQ V6 this process lasts a few seconds while in
  WebSphere MQ V701 it takes several minutes.
  
  From MQ trace it appears that MQ attempts several times to stop
  a channel which is already ended.
  

Local fix

• Do not stop the channels before ending the qmgr
  

Problem summary

• ****************************************************************
  USERS AFFECTED:
  Users who explicitly stop channels immediately before issuing
  endmqm may be affected by this problem.
  
  Platforms affected:
  All Distributed (iSeries, all Unix and Windows)
  ****************************************************************
  PROBLEM SUMMARY:
  The code executed during endmqm to stop all channels was not
  properly checking the liveness of channel processes. This led
  the code to keep checking liveness of processes that were no
  longer alive (had ended). That was causing endmqm to take longer
  than five minutes to complete.
  

Problem conclusion

• The stop all channels code within endmqm was revised to ensure
  it correctly checked the liveness of channel processes. The
  revision eliminates the repeated checking of channel process
  liveness for those channel processes that have ended. This
  eliminates the 5 minutes (or more) delay in the completion of
  endmqm.
  
  ---------------------------------------------------------------
  The fix is targeted for delivery in the following PTFs:
  
                     v7.0
  Platform           Fix Pack 7.0.1.10
  --------           --------------------
  Windows            7.0.1.10
  AIX                7.0.1.10
  HP-UX (PA-RISC)    7.0.1.10
  HP-UX (Itanium)    7.0.1.10
  Solaris (SPARC)    7.0.1.10
  Solaris (x86-64)   7.0.1.10
  iSeries            7.0.1.10
  Linux (x86)        7.0.1.10
  Linux (x86-64)     7.0.1.10
  Linux (zSeries)    7.0.1.10
  Linux (Power)      7.0.1.10
  
                     v7.1
  Platform           Fix Pack 7.1.0.2
  --------           --------------------
  Windows            7.1.0.2
  AIX                7.1.0.2
  HP-UX (Itanium)    7.1.0.2
  Solaris (SPARC)    7.1.0.2
  Solaris (x86-64)   7.1.0.2
  iSeries            7.1.0.2
  Linux (x86)        7.1.0.2
  Linux (x86-64)     7.1.0.2
  Linux (zSeries)    7.1.0.2
  Linux (Power)      7.1.0.2
  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 AIX V7

• Fixed component ID

  5724H7221

Applicable component levels

• R701 PSY

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