PM86255: ADMIN AGENT ABENDS WHEN PROCESSING A CHANGE RESPONSE FOR A BROKER WITH LOTS OF EXECUTION GROUPS AND MESSAGE FLOWS

APAR status

• Closed as program error.

Error description

• An abend of the Admin Agent process is observed when updating
  the
  deployment log after a change request is issued on a broker
  which has many execution groups and message flows.
  In this instance the customer issued the mqsichangeflowstats
  command to enable stats for all message flows in all
  execution groups. This generated over 2000 deployment log
  entries which were not handled correctly by the Admin Agent.
  An abend stack similar to this may be observed:
  
  ImbDeployManagerCache::addLogEntries(std::vector<ImbWstring,
  ImbDeployManagerCache::refresh(ImbQueueManager&)
  ImbDeployManagerCacheRefreshThread::refreshCache(ImbQueueMan
  ImbDeployManagerCacheRefreshThread::run(ImbOsThread*)
  ImbThreadPoolThreadFunction::run(ImbOsThread*)
  ImbOsThread::innerThreadBootStrapWrapper(void*)
  ImbOsThread::threadBootStrap(void*)
  threadBootStrapWrapper
  

Local fix

Problem summary

• ****************************************************************
  USERS AFFECTED:
  All users of WebSphere Message Broker V7.0 and V8.0 or IBM
  Integration Bus V9.0 who have a very large number of execution
  groups and message flows deployed to a single broker.
  
  
  Platforms affected:
  z/OS, MultiPlatform
  
  ****************************************************************
  PROBLEM SUMMARY:
  An abend of the admin agent process is observed when updating
  the administration log after a change request is issued on a
  broker which has many execution groups and message flows. In
  this instance the mqsichangeflowstats command was issued to
  enable stats for all message flows in all execution groups. This
  generated over 2000 deployment log entries which were not
  handled correctly by the admin agent. An abend stack similar
  to this may be observed:
  
  ImbDeployManagerCache::addLogEntries(std::vector<ImbWstring,
  ImbDeployManagerCache::refresh(ImbQueueManager&)
  ImbDeployManagerCacheRefreshThread::refreshCache(ImbQueueMan
  ImbDeployManagerCacheRefreshThread::run(ImbOsThread*)
  ImbThreadPoolThreadFunction::run(ImbOsThread*)
  ImbOsThread::innerThreadBootStrapWrapper(void*)
  ImbOsThread::threadBootStrap(void*)
  threadBootStrapWrapper
  

Problem conclusion

• The product now correctly handles the update of the
  administration log when it receives more results from one
  deployment action than the maximum capacity of the log.
  
  ---------------------------------------------------------------
  The fix is targeted for delivery in the following:
  
  Version            v9.0
  --------           --------------------
  Fix available in:  9.0.0.1
  
  Version            v7.0
  --------           --------------------
  Fix available in:  7.0.0.7
  
  Version            v8.0
  --------           --------------------
  Fix available in:  8.0.0.3
  
  The latest available maintenance can be obtained from
  'WebSphere Message Broker Recommended Fixes'
  http://www.ibm.com/support/docview.wss?rs=849&uid=swg27006041
  
  If the maintenance level is not yet available, information on
  its planned availability can be found in 'WebSphere Message
  Broker Planned Maintenance Release Dates'
  http://www-1.ibm.com/support/docview.wss?rs=849&uid=swg27006308
  ---------------------------------------------------------------
  

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

  WEB MB Z/OS

• Fixed component ID

  5655V6000

Applicable component levels

• R700 PSY

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