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IC69973: SENDING MESSAGE FROM WMQ V7 TO WMQ V7 USING A SERVER-REQUESTER CHANNEL RESULTS IN AMQ6047 AND PROBE ID ZT372000

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APAR status

  • Closed as program error.

Error description

  • Using a Server-Requester channel to send a message from one
    WebSphere MQ v7 queue manager to another v7 queue manager fails
    with the following error:
    AMQ6047: Conversion not supported.
    Explanation:
    WebSphere MQ is unable to convert string data tagged in
    CCSID 819 to data in CCSID 932.
    
    These are supported CCSID's according to the WebSphere MQ
    v7 Application Programming Reference Manual.
    
    The following FDC's are generated:
    Probe Id          :- JD514000
    Component         :- DmQueueManager.onError
    Process Name      :- D:\IBM\MQ\java\jre\bin\javaw.exe
    UserApp           :- TRUE
    Major Errorcode   :- MQRCCF_CCSID_ERROR
    .
    Probe Id          :- XC006001
    Component         :- xcsFreeMemFn
    Process Name      :- D:\IBM\MQ\java\jre\bin\javaw.exe
    UserApp           :- TRUE
    Major Errorcode   :- xecS_I_PRIVATE_MEMORY_ERROR
    Probe Description :- AMQ6091
    Arith1            :- 655711848 27155e68
    Comment1          :- invalid tail tag
    .
    Probe Id          :- ZT372000
    Component         :- zrfPrepareMsgForBackLevel
    Process Name      :- D:\IBM\MQ\bin\amqrmppa.exe
    UserApp           :- FALSE
    Major Errorcode   :- xecX_E_CONV_NOT_SUP
    Probe Type        :- MSGAMQ6047
    
    The third FDC, ZT372000 / zrfPrepareMsgForBackLevel, shows
    that WebSphere MQ is trying to prepare a message for sending to
    a pre-v7 queue manager. In this case however, both queue
    managers are v7.
    
    Additional keywords:
    CCSID codepage conversion
    

Local fix

  • Use a SENDER-REVEIVER channel to ensure the WMQ v7-v7
    communication is as efficient as possible.
    

Problem summary

  • ****************************************************************
    USERS AFFECTED:
    All users of Server-Requester channels talking from a V7.0.*
    queue manager to another V7.0.* queue manager.
    
    Platforms affected:
    All Distributed (iSeries, all Unix and Windows)
    ****************************************************************
    PROBLEM SUMMARY:
    During the initial negotiation of a channel, parameters are
    agreed by both ends on what attributes the channel will have.
    
    When the channel which initiated the connection did not also
    initiate the negotiation phase (which is the case in a server
    to receiver setup) then a particular attribute was not being
    set correctly. This attribute controls whether the channel
    supports the new V7 message properties, and because it did not
    get set then when the message tried to flow it is incorrectly
    converted into a format understandable by pre-MQ v7.0 releases.
    
    In the normal case, for example sender to receiver, then the
    initiator of the channel also initiates the negotiation and
    this problem does not occur.
    

Problem conclusion

  • WebSphere MQ has been modified to correctly negotiate the
    attribute in question, meaning a v7 server to v7 receiver setup
    no longer converts into pre-v7 format when transferring a
    message.
    
    Note this change also prevents the need for conversion to
    occur, however the conversion error itself is addressed under
    APAR IC64545.
    
    ---------------------------------------------------------------
    The fix is targeted for delivery in the following PTFs:
    
                       v7.0
    Platform           Fix Pack 7.0.1.4
    --------           --------------------
    Windows            U200323
    AIX                U835793
    HP-UX (PA-RISC)    U836458
    HP-UX (Itanium)    U836463
    Solaris (SPARC)    U836459
    Solaris (x86-64)   U836465
    iSeries            tbc_p700_0_1_4
    Linux (x86)        U836460
    Linux (x86-64)     U836464
    Linux (zSeries)    U836461
    Linux (Power)      U836462
    
    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

    IC69973

  • 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

    2010-07-15

  • Closed date

    2010-08-31

  • Last modified date

    2010-08-31

  • 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:
31 August 2010