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IC72660: XMS .NET APPLICATION HANGS WHEN XMSSession.Commit IS ISSUED WHILE ASYNCHRONOUS MESSAGE LISTENER IS PROCESSING MESSAGE

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APAR status

  • Closed as program error.

Error description

  • A WebSphere MQ XMS .NET V2.0 CLIENT application hangs when
    it issues XMSSession.Commit or XMSSession.Rollback from
    an asynchronous message consumer thread. This problem
    occurs when MANAGED mode is used by the client application
    for connecting to the queue manager.
    

Local fix

Problem summary

  • ****************************************************************
    USERS AFFECTED:
    All users of XMS .Net applications in managed mode. The problem
    only occurs when an Asynchronous consumer is used and the
    asynchronous message listener method issues XMSSession.Commit or
    XMSSession.Rollback.
    
    Platforms affected:
    Windows
    
    ****************************************************************
    PROBLEM SUMMARY:
    There was a locking issues in the asynchronous consumer which
    was causing the XMSSession.Commit or XMSSession.Rollback method
    calls to hang if called from a asynchronous message listener.
    

Problem conclusion

  • Proper locking mechanisms have been introduced so that the
    XMSSession.Commit or XMSSession.Rollback methods do not hang.
    
    ---------------------------------------------------------------
    The fix is targeted for delivery in the following PTFs:
    
                       v7.0
    Platform           Fix Pack 7.0.1.5
    --------           --------------------
    Windows            U200324
    
    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

    IC72660

  • Reported component name

    WMQ WINDOWS V7

  • Reported component ID

    5724H7220

  • Reported release

    701

  • Status

    CLOSED PER

  • PE

    NoPE

  • HIPER

    NoHIPER

  • Special Attention

    NoSpecatt

  • Submitted date

    2010-11-18

  • Closed date

    2010-11-26

  • Last modified date

    2010-11-26

  • 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

  • R701 PSY

       UP

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Document Information

Modified date:
26 November 2010