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IV55698: MEMORY USAGE GROWTH IN AMQRMPPA PROCESS IF THERE WAS A FAILURE SENDING AN API RESPONSE TO A CONNECTED CLIENT

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APAR status

  • Closed as program error.

Error description

  • An increase in memory usage occurs when there is a failure
    sending an API response to the client, in internal function
    rriMQIServerCall.
    
    rriMQIServerCall may allocate a new buffer for sending the API
    response, and this buffer does not get released if the send
    fails. This results in memory usage growth over time.
    

Local fix

  • n/a
    

Problem summary

  • ****************************************************************
    USERS AFFECTED:
    Users of WebSphere MQ clients on unstable networks
    
    
    Platforms affected:
    MultiPlatform
    
    ****************************************************************
    PROBLEM SUMMARY:
    The memory was being allocated from the operating system, but
    not freed after the communication failure.
    

Problem conclusion

  • The WebSphere MQ product code has been corrected to ensure the
    memory is freed after the communication failure.
    
    ---------------------------------------------------------------
    The fix is targeted for delivery in the following PTFs:
    
    Version    Maintenance Level
    v7.1       7.1.0.6
    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

    IV55698

  • Reported component name

    WMQ AIX V7

  • Reported component ID

    5724H7221

  • Reported release

    710

  • Status

    CLOSED PER

  • PE

    NoPE

  • HIPER

    NoHIPER

  • Special Attention

    NoSpecatt

  • Submitted date

    2014-02-20

  • Closed date

    2014-03-04

  • Last modified date

    2014-03-04

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

    PI06313

  • 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

  • R710 PSY

       UP

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Document Information

Modified date:
09 March 2021