IBM Support

IC67136: MQ V7.0.1 MESSAGES GREATER THAN 64KB BECOMES CORRUPTED WHEN USING XMS .NET

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APAR status

  • Closed as program error.

Error description

  • XMS .NET C# application puts messages onto a queue.  The
    messages are greater than 64KB.  The messages are arriving onto
    the queue in segments and each segment contains the same data.
    The complete message never arrives on the queue, and there are
    no errors or FDCs generated.
    

Local fix

Problem summary

  • ****************************************************************
    USERS AFFECTED:
    This problem will be seen by XMS .NET applications while sending
    messages larger than 64KB when connected to Queue Manager in
    fully managed mode (XMSC.WMQ_CONNECTION_MODE=XMSC.WMQ_CM_CLIENT)
    
    Platforms affected:
    Windows
    
    ****************************************************************
    PROBLEM SUMMARY:
    The message data for large messages is segmented when the .NET
    client sends the data to the queue manager. This code contained
    a logic error resulting in incorrect data being sent.
    
    For messages larger than 64K the data of the first segment was
    repeated in subsequent segments, resulting in the a corrupt
    message being stored on the queue.
    

Problem conclusion

  • The segmentation logic in the .NET code was corrected.
    
    ---------------------------------------------------------------
    The fix is targeted for delivery in the following PTFs:
    
                       v7.0
    Platform           Fix Pack 7.0.1.3
    --------           --------------------
    Windows            U200320
    
    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

    IC67136

  • 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

    2010-03-12

  • Closed date

    2010-03-15

  • Last modified date

    2010-04-30

  • 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:
30 April 2010