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PH46371: ADD QLLLID IDENTIFIER FIELD TO MAKE IS EASIER TO IDENTIFY THE LONGEST WAITER TYPE

A fix is available

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APAR status

  • Closed as new function.

Error description

  • Add a new field QLLLID the QLLL macro to make it easier to
    identity the suspension type that it being traced as the
    'longest waiter' .
    

Local fix

  • N/A
    

Problem summary

  • ****************************************************************
    * USERS AFFECTED:                                              *
    * Db2 13 for z/OS users of IFCID03.                            *
    ****************************************************************
    * PROBLEM DESCRIPTION:                                         *
    * When using IFCID 3 section 14 QLLL,                          *
    * QLLLR or Part 1 contains overloaded                          *
    * data.                                                        *
    ****************************************************************
    * RECOMMENDATION:                                              *
    * Apply corrective PTF when available                          *
    ****************************************************************
    In order to interpret the overloaded data in QLLLR, a new ID
    field or QLLLTYP is added which contains different types of
    longest wait times:
    QLLLAWLG CONSTANT(1);    LOG WRITE I/O
    QLLLAWTI CONSTANT(2);    Db2 - I/O
    QLLLAWTD CONSTANT(3);    SYNCH DB READS WITH DASD CACHE HIT
    QLLLAWTG CONSTANT(4);    SENDING OF IRLM NOTIFY MSG
    **************** GLOBAL CONTENTION FOR: ********************
    QLLLAWTN CONSTANT(5);    PAGESET/PARTITION P-LOCKS
    QLLLAWTO CONSTANT(6);    PAGE P-LOCKS
    QLLLAWTQ CONSTANT(7);    OTHER P-LOCKS
    QLLLAWTJ CONSTANT(8);    PARENT L-LOCKS
    QLLLAWTK CONSTANT(9);    CHILD L-LOCKS
    QLLLAWTM CONSTANT(10);   OTHER L-LOCKS
    **************** END OF GLOBAL CONTENTIONS *****************
    QLLLAWTL CONSTANT(11);   DB2 - LOCK
    QLLLAWLH CONSTANT(12);   DB2 - LATCH
    QLLLAWTR CONSTANT(13);   DB2-READ I/O UNDER THREAD
                             OTHER THAN THIS ONE
    QLLLAWTW CONSTANT(14);   DB2-WRITE I/O UNDER THREAD
                             OTHER THAN THIS ONE
    QLLLAWDR CONSTANT(15);   DRAIN LOCK
    

Problem conclusion

  • Db2 has been modified to include QLLLTYP so that QLLLR can be
    accurately interpreted when retrieving IFCID0003 accounting
    trace records.
    

Temporary fix

Comments

APAR Information

  • APAR number

    PH46371

  • Reported component name

    DB2 OS/390 & Z/

  • Reported component ID

    5740XYR00

  • Reported release

    D10

  • Status

    CLOSED PER

  • PE

    NoPE

  • HIPER

    NoHIPER

  • Special Attention

    NoSpecatt / Xsystem

  • Submitted date

    2022-05-12

  • Closed date

    2022-08-01

  • Last modified date

    2022-09-01

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

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

    UI81752

Modules/Macros

  • DSNDQLLL DSNWVSR1
    

Fix information

  • Fixed component name

    DB2 OS/390 & Z/

  • Fixed component ID

    5740XYR00

Applicable component levels

  • RD10 PSY UI81752

       UP22/08/10 P F208

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 September 2022