PI34159: ADMIN AGENT HANGS WHEN QUEUE MANAGER IS STOPPED BEFORE EXECUTION GROUP COMPLETES STARTUP

APAR status

• Closed as program error.

Error description

• A hang during shutdown and restart is observed in the admin
  agent if the queue manager is shutdown before any execution
  groups have received and processed their startup messages. This
  hang does not occur if the queue manager is cancelled/terminates
  abnormally or if the execution groups have already processed
  their startup messages.
  
  The admin agent should not hang but should restart and then wait
  for the queue manager to restart before restart any execution
  groups.
  
  
  Additional Symptom(s) Search Keyword(s):
  

Local fix

• N/A
  

Problem summary

• ****************************************************************
  USERS AFFECTED:
  All users of WebSphere Message Broker V7.0 & V8.0 and IBM
  Integration Bus V9.0 who experience Queue Manager failures.
  
  
  Platforms affected:
  z/OS, MultiPlatform
  
  ****************************************************************
  PROBLEM DESCRIPTION:
  A hang during shutdown and restart is observed in the admin
  agent if the queue manager is shutdown before any execution
  groups have received and processed their startup messages. This
  hang does not occur if the queue manager is cancelled/terminates
  abnormally or if the execution groups have already processed
  their startup messages. The hang occurs because the Admin Agent
  waits for the execution groups to end, but has never signalled
  them to terminate.
  
  
  
  There are a number of resource name changes between WebSphere
  Message Broker and IBM Integration Bus Version 9.0. For details
  visit
  http://pic.dhe.ibm.com/infocenter/wmbhelp/v9r0m0/topic/com.ibm.e
  tools.mft.doc/bb23814_.htm
  

Problem conclusion

• The product has been modified so that the Admin Agent will
  always send a signal to terminate the execution groups in this
  scenario and so can wait successfully for them to terminate
  before restarting.
  
  ---------------------------------------------------------------
  The fix is targeted for delivery in the following PTFs:
  
  Version    Maintenance Level
  v7.0       7.0.0.8
  v8.0       8.0.0.7
  v9.0       9.0.0.6
  
  The latest available maintenance can be obtained from:
  http://www-01.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 on:
  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:

  PI33359

• 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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