PM08136: SIB MEDIATION ON MQSERVER STOPS WORKING AFTER APPLICATION REINSTALL

Obtain the fix for this APAR.

APAR status

• Closed as program error.

Error description

• A mediation on a queue point defined on an MQServer stops
  working after an application is installed/uninstalled, or a
  BUS configuration reload occurs.  The following FFDC is logged:
  
  Exception = java.lang.ClassCastException
  Source =
  com.ibm.ws.sib.processor.impl.DynamicConfigManager.refreshDestin
  ations
  probeid = 1:134:1.25.1.1
  Stack Dump = java.lang.ClassCastException:
  com.ibm.ws.sib.processor.impl.RMQConsumerKey incompatible with
  com.ibm.ws.sib.processor.impl.JSConsumerKey
  at
  com.ibm.ws.sib.processor.impl.mediation.ActiveMediation.stop
  (ActiveMediation.java:380)
  at
  com.ibm.ws.sib.processor.impl.mediation.MediationStateMachine.
  tellMediationToStop(MediationStateMachine.java:1298)
  
  The messaging engine hosting the mediation needs to be
  restarted in order to resolve the issue.
  

Local fix

• Restarting the server , which will re-start the messaging engine
  will resolve the problem.
  

Problem summary

• ****************************************************************
  * USERS AFFECTED: All users of IBM WebSphere Application       *
  *                 Server's Service Integration Bus and         *
  *                 MQServers                                    *
  *                                                              *
  ****************************************************************
  * PROBLEM DESCRIPTION: A mediation on a queue point defined    *
  *                      on an MQServer stops working after an   *
  *                      application is installed/uninstalled.   *
  *                                                              *
  ****************************************************************
  * RECOMMENDATION:                                              *
  ****************************************************************
  The code controlling mediations did not expect the mediated
  destination to be on an MQServer.  As a result, when a BUS
  configuration reload occurs, and the mediation must be
  stopped, the ClassCastException occurs, and the mediation
  stops functioning.
  

Problem conclusion

• PK94588 resolves the problem and mediations on MQServer
  destinations can be stopped and started when a BUS
  configuration reload occurs.
  
  APAR PM08136 is currently targeted for inclusion in Service
  Level (Fix Pack) 7.0.0.9 of WebSphere Application Server V7.0.
  
  Please refer to URL:
  //www.ibm.com/support/docview.wss?rs=404&uid=swg27006970
  for Fix Pack availability.
  

Temporary fix

Comments

APAR Information

• APAR is sysrouted FROM one or more of the following:

  PK94588

• APAR is sysrouted TO one or more of the following:

Modules/Macros

• BBGUBINF BBOUBINF
  

Fix information

• Fixed component name

  WEBSPHERE FOR Z

• Fixed component ID

  5655I3500

Applicable component levels

• R700 PSY UK55155

     UP10/03/26 P F003

Fix is available

• Select the PTF appropriate for your component level. You will be required to sign in. Distribution on physical media is not available in all countries.