IBM Support

IT16678: MQ Explorer has incorrect range in warning for queue manager extended property 'errorLogSize'

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APAR status

  • Closed as program error.

Error description

  • When using the IBM MQ Explorer and opening the "Extended" queue
    manager properties page of a local queue manager that does not
    have the ErrorLogSize property configured in its qm.ini file,
    the value of field "Error log size" displayed by the MQ Explorer
    contains the default value of 262144.  Removing the 262144
    value, a yellow warning icon appears beside the empty field.
    Moving the cursor upon the warning icon, a tooltip appears with
    the text:
      "Input out of range (0 - 2147483647)"
    The default value 262144 and value range (0 - 2147483647) are
    not correct.

Local fix

Problem summary

  • ****************************************************************
    This issue affects users of the:
      - IBM MQ V8 Explorer
      - IBM MQ V9 Explorer
    who are modifying a local queue manager's "Error log size"
    property in the "Extended" pane of the queue manager Properties
    window and that local queue manager did not contain an
    ErrorLogSize entry in its qm.ini file.
    Platforms affected:
    Windows, Linux on x86-64, Linux on x86
    From WebSphere MQ V7.1, the default size of the queue manager's
    error log files increased from 256KB to 2MB, however the IBM MQ
    Explorer was not updated to reflect the change in the default
    size for queue manager's at this version or higher.  The MQ
    Explorer displayed the default value as 262144 rather than
    Furthermore, when the user did not enter a value for the queue
    manager's "Error log size" property in the "Extended" pane of
    the queue manager "Properties" window, the small warning icon
    that appeared to the left of the box showed an incorrect range
    of values for this property when the cursor was placed over the
    icon.  The range was shown as accepting values from 0 to
    2147483647 but the correct range is 32768 to 2147483648, as per
    the documentation in the following Knowledge Center page:
    Note that the maximum value in the tool-tip was 1 less than the
    maximum defined in the Knowledge Center page, "Queue manager
    error logs".  This was due to a limitation with the Eclipse
    widget used to implement the GUI value "spinner" object
    representing the queue manager's error log size property as the
    maximum size permitted was the maximum of a Java int, primitive
    which is 2147483647.

Problem conclusion

  • The IBM MQ Explorer has been updated such that the correct
    default size for the queue manager error logs is shown in the
    "Extended" pane of the queue manager "Properties" window.
    A custom Eclipse widget has also been defined for the queue
    manager "Error log size" property that will permit the full
    range of valid values for the size of the queue manager error
    logs, which is 32768 to 2147483648.  This custom widget no
    longer displays a tool-tip when the value in the text field is
    invalid.  However, when a different queue manager extended
    property is selected, or the Apply or "OK" button is clicked,
    Explorer will change the value in the field to be either:
      - the maximum permitted value if the value that was entered is
    greater than 2147483648
      - the minimum permitted value if the value that was entered is
    less than 32768
    The fix is targeted for delivery in the following PTFs:
    Version    Maintenance Level
    v9.0 CD    9.0.2
    v9.0 LTS
    The latest available maintenance can be obtained from
    'WebSphere MQ Recommended Fixes'
    If the maintenance level is not yet available information on
    its planned availability can be found in 'WebSphere MQ
    Planned Maintenance Release Dates'

Temporary fix


APAR Information

  • APAR number


  • Reported component name


  • Reported component ID


  • Reported release


  • Status


  • PE




  • Special Attention

    NoSpecatt / Xsystem

  • Submitted date


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  • Last modified date


  • 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


  • Fixed component ID


Applicable component levels

  • R800 PSY


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Document Information

Modified date:
01 June 2017