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PH58298: MUST COMPLETE STATUS NOT DETECTED DURING END OF TASK 23/12/01 PTF PECHANGE

A fix is available

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APAR status

  • Closed as program error.

Error description

  • Must complete status isn't always detected during end of task
    (EOT). This can result in hangs in the QMGR. This problem was
    introduced by APAR PH50324, which was repackaged into APAR
    PH55841.
    

Local fix

Problem summary

  • ****************************************************************
    * USERS AFFECTED: All users of IBM MQ for z/OS Version 9       *
    *                 Release 1 Modification 0,                    *
    *                 Release 2 Modification 0 and                 *
    *                 Release 3 Modification 0.                    *
    ****************************************************************
    * PROBLEM DESCRIPTION: When a task connected to the QMGR,      *
    *                      including internal service tasks, goes  *
    *                      through end of task (EOT) processing,   *
    *                      it is possible for the queue manager    *
    *                      to hang as a result of must complete    *
    *                      status not always being correctly       *
    *                      detected.                               *
    ****************************************************************
    The code that handles must complete status checking during end
    of task processing incorrectly detected that the task was not
    in a must complete state. This resulted in the queue manager not
    being terminated as expected.
    

Problem conclusion

  • The code has been changed to correctly determine must complete
    status during end of task. As a result, the queue manager now
    terminates with reason 00F30429 as expected, thus preventing
    queue manager hangs.
    

Temporary fix

Comments

APAR Information

  • APAR number

    PH58298

  • Reported component name

    IBM MQ Z/OS V9

  • Reported component ID

    5655MQ900

  • Reported release

    100

  • Status

    CLOSED PER

  • PE

    YesPE

  • HIPER

    YesHIPER

  • Special Attention

    NoSpecatt / Xsystem

  • Submitted date

    2023-11-21

  • Closed date

    2024-01-12

  • Last modified date

    2024-02-01

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

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

    UI95205 UI95206 UI95207

Modules/Macros

  • CSQ3SSI1
    

Fix information

  • Fixed component name

    IBM MQ Z/OS V9

  • Fixed component ID

    5655MQ900

Applicable component levels

  • R100 PSY UI95206

       UP24/01/18 P F401 ­

  • R200 PSY UI95205

       UP24/01/18 P F401 ­

  • R300 PSY UI95207

       UP24/01/18 P F401 ­

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.

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Document Information

Modified date:
01 February 2024