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IC59871: WEBSPHERE MQ VERSION 7 JMS CLIENTS RECEIVING MESSAGES FROM A VERSION 6 QUEUE MANAGER FAIL TO GET MESSAGES, WITH NO ERRORS.

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APAR status

  • Closed as program error.

Error description

  • When using a WebSphere MQ Version 7 Java Message Service (JMS)
    client to receive messages from a Version 6 queue manager,
    some messages are not consumed, with no errors reported.
    
    A trace taken at the time of the issue shows that when getting
    a message, the waitForStart() method reports that the session
    has started, then the isStarted() method reports that it has
    stopped:
    
    c.i.m.c.w.v.jms.internal.MQMessageConsumer
    ----+  d  unspecified method receiveInternal
    - waiting for session start <null>
    c.i.m.c.w.v.jms.internal.MQXASession(MQSession)
    ----+  {  waitForStart(long) [250]
    c.i.m.c.w.v.jms.internal.MQXASession(MQSession)
    ----+  }  waitForStart(long) returns [250] Long
    c.i.m.c.w.v.jms.internal.MQMessageConsumer
    ----+  d  unspecified method receiveInternal
    - session started <null>
    c.i.m.c.w.v.jms.internal.MQSession
    ----+  d  isStarted() getter [false]
    c.i.m.c.w.v.jms.internal.MQXASession
    ----+  d  isStarted() getter [false]
    c.i.m.c.w.v.jms.internal.MQMessageConsumer
    ----+  d  unspecified method ProviderSession
    stopped or closed while getting transaction Lock.
    Returning null <null>
    
    Following this, the receive() method returns without getting a
    message.
    

Local fix

Problem summary

  • ****************************************************************
    USERS AFFECTED:
    This issue affects WebSphere MQ Version 7 Java Message Service
    (JMS) applications that get messages from a Version 6 queue
    manager.
    
    Platforms affected:
    All Distributed (iSeries, all Unix and Windows) +Java
    ****************************************************************
    PROBLEM SUMMARY:
    The internal flags in the WebSphere MQ Version 7 JMS Client
    recording the state of a session were not being updated
    correctly when sessions were started.
    

Problem conclusion

  • The internal flags recording the session state are now updated
    correctly, and messages are received by the JMS Client as
    expected.
    
    ---------------------------------------------------------------
    The fix is targeted for delivery in the following PTFs:
    
                       v7.0
    Platform           Fix Pack 7.0.0.2
    --------           --------------------
    Windows            U200302
    AIX                U822354
    HP-UX (PA-RISC)    U822349
    HP-UX (Itanium)    U822351
    Solaris (SPARC)    U822353
    Solaris (x86-64)   U822394
    iSeries            tbc_p700_0_0_2
    Linux (x86)        U822348
    Linux (x86-64)     U822393
    Linux (zSeries)    U822352
    Linux (Power)      U822350
    
    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 number

    IC59871

  • Reported component name

    WMQ WINDOWS V7

  • Reported component ID

    5724H7220

  • Reported release

    700

  • Status

    CLOSED PER

  • PE

    NoPE

  • HIPER

    NoHIPER

  • Special Attention

    NoSpecatt

  • Submitted date

    2009-02-04

  • Closed date

    2009-02-26

  • Last modified date

    2009-04-06

  • 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 WINDOWS V7

  • Fixed component ID

    5724H7220

Applicable component levels

  • R700 PSY

       UP

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Document Information

Modified date:
06 April 2009