IT19227: dmpmqcfg times out waiting for responses from the command serverwhen the queue manager has many objects defined

APAR status

• Closed as program error.

Error description

• The queue manager has many objects, or is running on a slow
  machine.
  
  The dmpmqcfg command runs for approximately 30-60 seconds, then
  ends with a timeout error:
  
  "MQSC timed out waiting for a response from the command server."
  

Local fix

Problem summary

• ****************************************************************
  USERS AFFECTED:
  Users of dmpmqcfg attempting to dump definitions from a queue
  manager that is running slowly due to resource restrictions,
  and/or has many objects defined.
  
  
  Platforms affected:
  MultiPlatform
  
  ****************************************************************
  PROBLEM DESCRIPTION:
  dmpmqcfg works by sending "inquire" commands the command server,
  and receiving responses.  If the queue manager (or its command
  server, or the machine it is running on) is busy, then the
  responses can take a "long" time to come back.
  
  When it has sent the requests, the main routine of dmpmqcfg
  enters a loop waiting for all work to be complete on a separate
  thread.
  
  In this loop, every 30 seconds, a health check is done.  The
  health check looks at the number of commands processed, and if
  this number has not increased since the last time we checked
  (ie. 30 seconds ago) then dmpmqcfg assumes a failure has
  happened, and ends the program.
  
  But this condition also happens in the case documented here: the
  queue manager is slow in responding for reasons of resource
  shortage or large number of definitions.
  

Problem conclusion

• A command line switch -w has been added to dmpmqcfg.  Via this
  switch the user can supply an argument which is the acceptable
  timeout when waiting for a reply message from the command
  server.  The default is 60 seconds.
  
  So, for example, to use a value of 120 seconds:
  
  dmpmqcfg -m QMNAME -a -w 120
  
  ---------------------------------------------------------------
  The fix is targeted for delivery in the following PTFs:
  
  Version    Maintenance Level
  v7.5       7.5.0.9
  v8.0       8.0.0.8
  v9.0 CD    9.0.4
  v9.0 LTS   9.0.0.2
  
  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 BASE MULTIP

• Fixed component ID

  5724H7241

Applicable component levels