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PH08277: TRIGGER MONITORING IS STOPPED INCORRECTLY.

A fix is available

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You can track all active APARs for this component.

APAR status

  • Closed as program error.

Error description

  • Trigger monitoring was stopped. This customer was using a shared
    application queue and shared initiation queue.
    There is an internal test of the open input count on the
    application queue that is performed twice by the putting
    application and between the two tests the value changes due to
    a small timing window - this change causes us to misinterpret
    that the initiation queue is not open and therefore we stop
    trigger monitoring.
    

Local fix

Problem summary

  • ****************************************************************
    * USERS AFFECTED: All users of IBM MQ for z/OS Version 9       *
    *                 Release 0 Modification 0 and Version 9       *
    *                 Release 1 Modification 0.                    *
    ****************************************************************
    * PROBLEM DESCRIPTION: Triggering gets incorrectly turned off  *
    *                      when the open input to the              *
    *                      application queue closes while a        *
    *                      MQOPEN or MQCLOSE is executing.         *
    ****************************************************************
    If the open input to the application queue closes while an
    MQOPEN or MQCLOSE is executing, CSQMTRGS may turn off triggering
    due to incorrectly assuming the initiation queue has no
    trigger monitor.
    

Problem conclusion

  • CSQMTRGS will not incorrectly disable triggering if the state of
    the application queues open input count changes during
    execution.
    

Temporary fix

Comments

APAR Information

  • APAR number

    PH08277

  • Reported component name

    IBM MQ Z/OS V9

  • Reported component ID

    5655MQ900

  • Reported release

    000

  • Status

    CLOSED PER

  • PE

    NoPE

  • HIPER

    NoHIPER

  • Special Attention

    NoSpecatt / Xsystem

  • Submitted date

    2019-02-07

  • Closed date

    2019-03-08

  • Last modified date

    2019-08-20

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

    PH05267

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

    UI61733 UI61734

Modules/Macros

  • CSQMTRGS
    

Fix information

  • Fixed component name

    IBM MQ Z/OS V9

  • Fixed component ID

    5655MQ900

Applicable component levels

  • R000 PSY UI61733

       UP19/04/11 P F904

  • R100 PSY UI61734

       UP19/04/11 P F904

Fix is available

  • Select the PTF appropriate for your component level. You will be required to sign in. Distribution on physical media is not available in all countries.



Document information

More support for: IBM MQ

Software version: 9.0

Reference #: PH08277

Modified date: 20 August 2019