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PM14633: WEBSPHERE APPLICATION SERVER SERVICE INTEGRATION BUS MESSAGING ENGINE THROWS CWSIS1500E ERRORS AFTER DATABASE FAILOVER

Fixes are available

7.0.0.13: WebSphere Application Server V7.0 Fix Pack 13 for AIX
7.0.0.13: WebSphere Application Server V7.0 Fix Pack 13 for HP-UX
7.0.0.13: WebSphere Application Server V7.0 Fix Pack 13 for IBM i
7.0.0.13: WebSphere Application Server V7.0 Fix Pack 13 for Linux
7.0.0.13: WebSphere Application Server V7.0 Fix Pack 13 for Solaris
7.0.0.13: WebSphere Application Server V7.0 Fix Pack 13 for Windows
7.0.0.13: Java SDK 1.6 SR8FP1 Cumulative Fix for WebSphere Application Server
6.1.0.35: Java SDK 1.5 SR12 FP2 Cumulative Fix for WebSphere
7.0.0.15: WebSphere Application Server V7.0 Fix Pack 15 for AIX
7.0.0.15: Java SDK 1.6 SR9 Cumulative Fix for WebSphere Application Server
7.0.0.15: WebSphere Application Server V7.0 Fix Pack 15 for HP-UX
7.0.0.15: WebSphere Application Server V7.0 Fix Pack 15 for IBM i
7.0.0.15: WebSphere Application Server V7.0 Fix Pack 15 for Linux
7.0.0.15: WebSphere Application Server V7.0 Fix Pack 15 for Solaris
7.0.0.15: WebSphere Application Server V7.0 Fix Pack 15 for Windows
6.1.0.37: Java SDK 1.5 SR12 FP3 Cumulative Fix for WebSphere
7.0.0.17: WebSphere Application Server V7.0 Fix Pack 17
7.0.0.17: Java SDK 1.6 SR9 FP1 Cumulative Fix for WebSphere Application Server
7.0.0.19: WebSphere Application Server V7.0 Fix Pack 19
7.0.0.21: WebSphere Application Server V7.0 Fix Pack 21
7.0.0.23: WebSphere Application Server V7.0 Fix Pack 23
7.0.0.25: WebSphere Application Server V7.0 Fix Pack 25
7.0.0.27: WebSphere Application Server V7.0 Fix Pack 27
7.0.0.29: WebSphere Application Server V7.0 Fix Pack 29
6.1.0.47: WebSphere Application Server V6.1 Fix Pack 47
7.0.0.31: WebSphere Application Server V7.0 Fix Pack 31
7.0.0.27: Java SDK 1.6 SR13 FP2 Cumulative Fix for WebSphere Application Server
7.0.0.33: WebSphere Application Server V7.0 Fix Pack 33
7.0.0.35: WebSphere Application Server V7.0 Fix Pack 35
7.0.0.37: WebSphere Application Server V7.0 Fix Pack 37
7.0.0.39: WebSphere Application Server V7.0 Fix Pack 39
7.0.0.41: WebSphere Application Server V7.0 Fix Pack 41
7.0.0.43: WebSphere Application Server V7.0 Fix Pack 43
7.0.0.45: WebSphere Application Server V7.0 Fix Pack 45
6.1.0.39: Java SDK 1.5 SR12 FP4 Cumulative Fix for WebSphere Application Server
6.1.0.41: Java SDK 1.5 SR12 FP5 Cumulative Fix for WebSphere Application Server
6.1.0.43: Java SDK 1.5 SR13 Cumulative Fix for WebSphere Application Server
6.1.0.45: Java SDK 1.5 SR14 Cumulative Fix for WebSphere Application Server
6.1.0.47: Java SDK 1.5 SR16 Cumulative Fix for WebSphere Application Server
7.0.0.19: Java SDK 1.6 SR9 FP2 Cumulative Fix for WebSphere Application Server
7.0.0.21: Java SDK 1.6 SR9 FP2 Cumulative Fix for WebSphere
7.0.0.23: Java SDK 1.6 SR10 FP1 Cumulative Fix for WebSphere
7.0.0.25: Java SDK 1.6 SR11 Cumulative Fix for WebSphere Application Server
7.0.0.27: Java SDK 1.6 SR12 Cumulative Fix for WebSphere Application Server
7.0.0.29: Java SDK 1.6 SR13 FP2 Cumulative Fix for WebSphere Application Server
7.0.0.45: Java SDK 1.6 SR16 FP60 Cumulative Fix for WebSphere Application Server
7.0.0.31: Java SDK 1.6 SR15 Cumulative Fix for WebSphere Application Server
7.0.0.35: Java SDK 1.6 SR16 FP1 Cumulative Fix for WebSphere Application Server
7.0.0.37: Java SDK 1.6 SR16 FP3 Cumulative Fix for WebSphere Application Server
7.0.0.39: Java SDK 1.6 SR16 FP7 Cumulative Fix for WebSphere Application Server
7.0.0.41: Java SDK 1.6 SR16 FP20 Cumulative Fix for WebSphere Application Server
7.0.0.43: Java SDK 1.6 SR16 FP41 Cumulative Fix for WebSphere Application Server

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You can track all active APARs for this component.

APAR status

  • Closed as program error.

Error description

  • After database failover , WebSphere Application Server
    Service Integration Bus Messaging Engine successfully
    acquires lock on the messagestore but throws CWSIS1500E
    errors. The following errors are written to the SystemOut.log
    CWSIP0002E: An internal messaging error occurred in com.ibm.
    ws.sib.processor.impl.LockedMessageEnumerationImpl, 1:1534:1.
    154.2.6, com.ibm.ws.sib.msgstore.RollbackException:CWSIS1002E:
    An unexpected exception was caught during transaction
    completion. Exception: com.ibm.ws.sib.msgstore.Persistence
    Exception:CWSIS1500E: The dispatcher cannot accept work.
    
    FFDC shows the following:
    Exception = com.ibm.websphere.sib.exception.SIResourceException
    Source = com.ibm.ws.sib.comms.server.clientsupport.CATProxy
    Consumer.deleteSet
    probeid = 3-021-0001
    Stack Dump =
    com.ibm.websphere.sib.exception.SIResourceException:
    CWSIP0002E: An internal messaging error occurred in com.ibm.
    ws.sib.processor.impl.LockedMessageEnumerationImpl, 1:1534:1.
    154.2.6, com.ibm.ws.sib.msgstore.RollbackException:CWSIS1002E:
    An unexpected exception was caught during transaction
    completion. Exception: com.ibm.ws.sib.msgstore.Persistence
    Exception:CWSIS1500E: The dispatcher cannot accept work.
    at com.ibm.ws.sib.processor.impl.LockedMessageEnumeration
       Impl.processMsgSet(LockedMessageEnumerationImpl.java:1547)
    at com.ibm.ws.sib.processor.impl.JSLocalConsumerPoint.
       processMsgSet(JSLocalConsumerPoint.java:3485)
    at com.ibm.ws.sib.processor.impl.ConsumerSessionImpl.
       deleteSet(ConsumerSessionImpl.java:936)
    at com.ibm.ws.sib.comms.server.clientsupport.CATProxyConsumer.
       deleteSet(CATProxyConsumer.java:479)
    at com.ibm.ws.sib.comms.server.clientsupport.CATMainConsumer.
       deleteSet(CATMainConsumer.java:919)
    

Local fix

  • Stop JVM hosting the Messaging Engine. The Messaging Engine then
    successfully failsover to other JVM in the cluster Bus Member
    and establishes connection to the Database.
    

Problem summary

  • ****************************************************************
    * USERS AFFECTED:  Users of the default messaging provider for *
    *                  IBM WebSphere Application Server Version 7  *
    ****************************************************************
    * PROBLEM DESCRIPTION: CWSIS1500E exceptions still seen in     *
    *                      the log after connectivity to the       *
    *                      datastore has been restored             *
    ****************************************************************
    * RECOMMENDATION:                                              *
    ****************************************************************
    A loss of connection or an error with the datastore for the
    Messaging Engine can result in the following exception:
    
    CWSIS1500E: The dispatcher cannot accept work.
    
    CWSIS1500E errors are expected while the datastore is
    unavailable, as the messaging engine will not accept new work
    until the datastore is functioning correctly.
    
    However, CWSIS1500E errors might still occur for new work
    after database connectivity is restored, due to a problem
    within the dispatcher logic.
    

Problem conclusion

  • This APAR solves the problem within the dispatcher logic and
    allows the dispatcher to accept new work once the datastore is
    working. CWSIS1500E errors should only be logged while the
    database is unavailable, after the application of this APAR.
    
    The fix for this APAR is currently targeted for inclusion in
    fix pack 7.0.0.13.  Please refer to the Recommended Updates
    page for delivery information:
    http://www.ibm.com/support/docview.wss?rs=180&uid=swg27004980
    

Temporary fix

  • Restart the messaging engine to enable new work to be processed.
    

Comments

APAR Information

  • APAR number

    PM14633

  • Reported component name

    PLAT MSG COM

  • Reported component ID

    620600101

  • Reported release

    200

  • Status

    CLOSED PER

  • PE

    NoPE

  • HIPER

    NoHIPER

  • Special Attention

    NoSpecatt

  • Submitted date

    2010-05-17

  • Closed date

    2010-07-19

  • Last modified date

    2010-07-19

  • 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

    PLAT MSG COM

  • Fixed component ID

    620600101

Applicable component levels

  • R200 PSY

       UP



Document information

More support for: WebSphere Application Server
Service Integration Technology

Software version: 6.1

Reference #: PM14633

Modified date: 19 July 2010