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IV52438: WMQ RESOURCE ADAPTER DOES NOT PAUSE ENDPOINT AFTER SEQUENTIAL MESSAGE FAILURE LIMIT HAS BEEN REACHED

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You can track all active APARs for this component.

 

APAR status

  • Closed as program error.

Error description

  • The WebSphere MQ Resource Adapter was configured to pause the
    endpoint after the specified 'sequential message failure' was
    reached, but the message endpoint did not pause as expected when
    concurrent messages failed.
    

Local fix

Problem summary

  • ****************************************************************
    USERS AFFECTED:
    Users of the WebSphere MQ Resource Adapter running within the
    WebSphere Application Server, that is making use of the "Stop
    endpoint if message delivery fails" function.
    
    
    Platforms affected:
    MultiPlatform
    
    ****************************************************************
    PROBLEM SUMMARY:
    When the "Stop endpoint if message delivery fails" function is
    enabled for a WebSphere MQ Activation Specification within
    WebSphere Application Server, the value of the corresponding:
    
      "Number of sequential delivery failures before suspending
    endpoint"
    
    is used to control the point at which the endpoint is suspended,
    following a series of failures to process messages.
    
    If multiple messages are being consumed concurrently for one
    message endpoint, for example where there are numerous
    messages available for processing on the source queue and the
    activation specification is configured to process multiple
    messages in parallel (the default configuration), then it was
    possible that the number of failing message deliveries could
    exceed the configured value.
    
    This resulted in the message endpoint not being suspended at the
    expected point.
    

Problem conclusion

  • The WebSphere MQ Resource Adapter has been updated to inform the
    WebSphere Application Server with the correct information
    about a delivery failure occurrence when running concurrent
    message deliveries.
    
    The result of this is that the WebSphere Application Server will
    now suspend the message endpoint when the "Number of
    sequential delivery failures before suspending endpoint" limit
    has been reached.
    
    ---------------------------------------------------------------
    The fix is targeted for delivery in the following PTFs:
    
    Version    Maintenance Level
    v7.0       7.0.1.12
    v7.1       7.1.0.5
    v7.5       7.5.0.4
    
    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

    IV52438

  • Reported component name

    WMQ AIX V7

  • Reported component ID

    5724H7221

  • Reported release

    701

  • Status

    CLOSED PER

  • PE

    NoPE

  • HIPER

    NoHIPER

  • Special Attention

    NoSpecatt

  • Submitted date

    2013-11-22

  • Closed date

    2013-12-31

  • Last modified date

    2014-01-13

  • APAR is sysrouted FROM one or more of the following:

    IV52330

  • APAR is sysrouted TO one or more of the following:

Fix information

  • Fixed component name

    WMQ AIX V7

  • Fixed component ID

    5724H7221

Applicable component levels

  • R701 PSY

       UP

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Document Information

Modified date:
13 January 2014