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IC68558: MQRC_FUNCTION_NOT_SUPPORTED error (2298) when issuing certain API requests to V7 queue manager using unmanaged .NET client

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APAR status

  • Closed as program error.

Error description

  • An application issues a connection to a V6 queue manager.
    Subsequently connections are established to a V7 queue manager
    on the same or different threads of the application. Attempts
    to open/subscribe to queue objects fail with error
    MQRC_FUNCTION_NOT_SUPPORTED.
    

Local fix

  • DO NOT 2298 error when connecting to v6 followed immediately by
    connecting to a v7 queue manager via SPI and issuing an MQPUT
    

Problem summary

  • ****************************************************************
    USERS AFFECTED:
    Any users of WebSphere MQ using the unmanaged .NET client to
    interact with a V7 queue manager. Note the error only occurs if
    the application has also previously connected to a V6 queue
    manager on the same/different thread.
    
    Platforms affected:
    Windows
    
    ****************************************************************
    PROBLEM SUMMARY:
    
    The problem was caused by multiple connections to a queue
    manager sharing a single structure containing information
    regarding the supported functionality offered by the queue
    manager connection. As a result, if a client connection to a V6
    queue manager was established prior to a client connection to a
    V7 queue manager, this would result in the client incorrectly
    using the data associated with the V6 connection to determine
    which functions are supported by the V7 connection.
    

Problem conclusion

  • WebSphere MQ was modified to ensure that each individual
    connection to a queue manager receives its own copy of the data
    structure containing supported functions.
    
    ---------------------------------------------------------------
    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

    IC68558

  • 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

    2010-05-10

  • Closed date

    2010-05-12

  • Last modified date

    2010-05-12

  • 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:
12 May 2010