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IC68262: EXTRANEOUS CALLBACK MESSAGE CREATED WHEN RESPONSE TIMEOUT REACHED ON JMS BINDINGS

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APAR status

  • Closed as program error.

Error description

  • This affects modules with a JMS import binding where the
    response timeout specified, on the SCA reference wired to the
    JMS import, has been reached before a response is received.
    The callback message is expired and processed but an extraneous
    callback message is sent to the callback destination.  The
    expiration time of the message is set to 0, which indicates the
    message will never expire.  This APAR prevents these
    unnecessary callback messages being sent when processing an
    expiry message.
    

Local fix

Problem summary

  • ****************************************************************
    * USERS AFFECTED: Users of WebSphere Enterprise Service Bus    *
    *                 and WebSphere Process Server v7 who use      *
    *                 JMS bindings.                                *
    ****************************************************************
    * PROBLEM DESCRIPTION: If the response timeout that is         *
    *                      specified on an SCA reference that      *
    *                      has a JMS Import wired to it            *
    *                      elapses before a response is            *
    *                      received, the callback message for      *
    *                      that response will be expired. This     *
    *                      will then be processed.                 *
    *                      An extraneous callback message is       *
    *                      then sent to the callback               *
    *                      destination, which is set to never      *
    *                      expire.                                 *
    ****************************************************************
    * RECOMMENDATION:                                              *
    ****************************************************************
    The response timeout in an SCA reference can be used to
    control the expiration time of JMS messages sent to a JMS
    Import wired to that reference. When a message is sent through
    that Import, a callback message is placed on a callback
    destination.
    If the expiration time elapses before a response
    is received, this callback message will be expired.
    Processing this expired callback message  caused a callback
    message with an expiration time of 0 (which means it does not
    expire) to be then sent to  the callback destination.
    This APAR prevents these unnecessary callback messages being
    sent when processing an expiry message.
    

Problem conclusion

  • The code was modified such that unnecessary, unexpiring
    callback messages are not sent to the callback
    destination when processing an expiry message
    
    There are no known side effects associated with this fix.
    There is no known alternative workaround should you encounter
    this problem.
    
    This code fix was targeted to be included in the following fix
    packs:
         7.0.0 Fix Pack 3 (v7.0.0.3)
    

Temporary fix

Comments

APAR Information

  • APAR number

    IC68262

  • Reported component name

    WEB ESB FOR WIN

  • Reported component ID

    5724I8200

  • Reported release

    700

  • Status

    CLOSED PER

  • PE

    NoPE

  • HIPER

    NoHIPER

  • Special Attention

    NoSpecatt

  • Submitted date

    2010-04-30

  • Closed date

    2010-05-28

  • Last modified date

    2010-05-28

  • 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

    WEB ESB FOR WIN

  • Fixed component ID

    5724I8200

Applicable component levels

  • R100 PSN

       UP

  • R200 PSN

       UP

  • R300 PSN

       UP

  • R612 PSN

       UP

  • R620 PSN

       UP

  • R700 PSY

       UP

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Document Information

Modified date:
30 March 2023