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PH39275: IBM MQ Z/OS: INCORRECT VARIABLE LENGTH GTF TRACE ENTRIES

A fix is available

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APAR status

  • Closed as program error.

Error description

  • When formatting GTF trace for IBM MQ z/OS which includes
    variable length trace entries, the trace data points may be
    truncated.
    

Local fix

Problem summary

  • ****************************************************************
    * USERS AFFECTED: All users of IBM MQ for z/OS Version 9       *
    *                 Release 1 Modification 0 and Release 2       *
    *                 Modification 0.                              *
    ****************************************************************
    * PROBLEM DESCRIPTION: When writing trace to GTF, variable     *
    *                      length trace records will result in     *
    *                      subsequent trace record entries being   *
    *                      mis-aligned. This may appear as         *
    *                      residual data and truncation in the GTF *
    *                      trace record.                           *
    ****************************************************************
    The code which is responsible for writing GTF trace records
    incorrectly sets the length of variable length trace records.
    This results in the GTF formatter routines losing track of the
    position of subsequent trace records.
    

Problem conclusion

  • The code responsible for writing variable length GTF trace
    records has been corrected.
    

Temporary fix

Comments

APAR Information

  • APAR number

    PH39275

  • Reported component name

    IBM MQ Z/OS V9

  • Reported component ID

    5655MQ900

  • Reported release

    100

  • Status

    CLOSED PER

  • PE

    NoPE

  • HIPER

    NoHIPER

  • Special Attention

    NoSpecatt / Xsystem

  • Submitted date

    2021-07-26

  • Closed date

    2021-08-23

  • Last modified date

    2021-10-01

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

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

    UI76866 UI77174

Modules/Macros

  • CSQWVCOL
    

Fix information

  • Fixed component name

    IBM MQ Z/OS V9

  • Fixed component ID

    5655MQ900

Applicable component levels

  • R100 PSY UI77174

       UP21/09/29 P F109

  • R200 PSY UI76866

       UP21/09/29 P F109

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.

[{"Line of Business":{"code":"LOB45","label":"Automation"},"Business Unit":{"code":"BU053","label":"Cloud & Data Platform"},"Product":{"code":"SSYHRD","label":"IBM MQ"},"Platform":[{"code":"PF025","label":"Platform Independent"}],"Version":"100"}]

Document Information

Modified date:
02 October 2021