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IZ11153: WebSphere MQ V6 may not always consider the MQMAXERRORLOGSIZE environment variable when writing error log messages

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You can track all active APARs for this component.

APAR status

  • Closed as program error.

Error description

  • Setting environment variable MQMAXERRORLOGSIZE for WebSphere MQ
    V6 does not always take effect, compared with its use for
    WebSphere MQ V5.3.
    

Local fix

Problem summary

  • ****************************************************************
    USERS AFFECTED:
    Users setting MQMAXERRORLOGSIZE and expecting it to apply for
    all error log writes.
    
    Platforms affected:
     All Distributed (iSeries, all Unix and Windows)
    ****************************************************************
    PROBLEM SUMMARY:
    In WebSphere MQ V6, the intention is that the new QMErrorLog
    stanza should be employed to specify the maximum size of a
    queue manager's error logs.
    
    There is an environment variable, MQMAXERRORLOGSIZE, which was
    available in WebSphere MQ V5.3, to allow you to specify the
    maximum error log size. WebSphere V6 was re-coded to only use
    this environment variable for the system error logs (the log
    files under /var/mqm/errors).
    
    However, this effectively and unnecessarily modifies the
    behaviour of V6 compared with V5.3.
    

Problem conclusion

  • Ensured that if the environment variable MQMAXERRORLOGSIZE is
    set then it will be considered with regard to the maximum size
    of all error log files.
    
    If a valid ErrorLogSize value is given within the QMErrorLog
    stanza, then this will override any MQMAXERRORLOGSIZE value,
    for the queue manager error logs.
    
    ---------------------------------------------------------------
    The fix is targeted for delivery in the following PTFs:
    
                       v6.0
    Platform           Fix Pack 6.0.2.4
    --------           --------------------
    Windows            U200290
    AIX                U814256
    HP-UX (PA-RISC)    U814152
    HP-UX (Itanium)    U814342
    Solaris (SPARC)    U814337
    Solaris (x86-64)   U814343
    iSeries            SI31813
    Linux (x86)        U814336
    Linux (x86-64)     U814341
    Linux (zSeries)    U814338
    Linux (Power)      U814339
    Linux (s390x)      U814340
    
    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

    IZ11153

  • Reported component name

    WMQ LIN X86 V6

  • Reported component ID

    5724H7204

  • Reported release

    600

  • Status

    CLOSED PER

  • PE

    NoPE

  • HIPER

    NoHIPER

  • Special Attention

    NoSpecatt

  • Submitted date

    2007-12-14

  • Closed date

    2007-12-20

  • Last modified date

    2009-02-24

  • 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 LIN X86 V6

  • Fixed component ID

    5724H7204

Applicable component levels

  • R600 PSY

       UP



Document information

More support for: WebSphere MQ
APAR

Software version: 6.0

Reference #: IZ11153

Modified date: 24 February 2009


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