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PK27518: INCORRECT VALUES FOR L-LOCKS IN WORKSTATION CLIENT AND BATCH REPORTS

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APAR status

  • Closed as program error.

Error description

  • The SLLOCRAT field is a derived field, it's formula is the
    following:
    SLLOCRAT = ((QTGSLSLM - QTGSLPLK) / QTXALOCK) * 100.
    .
    We receive a value (29.4 or 40.8) when QTGSLSLM is greater than
    QTGSLPLK.
    But in some case, we have the opposite, this means that we
    receive a negative value, here the incorrect snapshot is:
    QTGSLSLM = 870
    

Local fix

  • QTGSLPLK = 1032
    QTXALOCK = 5230
    SLLOCRAT = ((870 - 1032) / 5230) * 100 = -3.09
    Before returning the value to the PEClient, a format is done by
    the
    server, and it does not handle correctly the negative values.
    That's why it returns '******'.
    

Problem summary

  • ****************************************************************
    * USERS AFFECTED: OMEGAMON XE for DB2 PE/DB2PM V310            *
    *                 users of component:                          *
    *                 _   OMEGAMON Server                          *
    *                 _   Performance Expert Client                *
    *                 _   Batch Reporting                          *
    ****************************************************************
    * PROBLEM DESCRIPTION: 1. "L-locks propagated to XES (%)"      *
    *                      field of the  Statistics  Details/Data  *
    *                      Sharing   Locking  window  of           *
    *                      Performance Expert client shows         *
    *                      '******' for  negative values.          *
    *                      2. The   same  issue  concerning        *
    *                      Omegamon Server on  host in Batch       *
    *                      Statistics   and   Accounting  report,  *
    *                      trace output.                           *
    ****************************************************************
    * RECOMMENDATION:                                              *
    ****************************************************************
    

Problem conclusion

  • The  ratios
    SLLOCRAT = (QTGSLSLM - QTGSLPLK) / QTXALOCK) * 100 and
    ALLOCRAT = (QTGALSLM - QTGALPLK) / QTXALOCK) * 100
    being  displayed on DB2 Performance Expert Workstation Client
    under the "L-locks propagated to XES (%)" label
    now correspondingly replaced by the ratios
    SLLOCRAT = (QTGSLSLM / (QTGSLPLK + QTXALOCK)  * 100 and
    ALLOCRAT = (QTGALSLM / (QTGALPLK + QTXALOCK)  * 100
    under the label "P/L-locks propagated to XES synchronously(%)".
    The new ratios are supposed to be more informative for DB2
    administrators.
    Values being calculated with the aid of the new formulas
    placed in Batch  Statistics report and trace output under the
    label 'P/L-LOCKS XES RATE (%)'
    

Temporary fix

Comments

APAR Information

  • APAR number

    PK27518

  • Reported component name

    OM XE DB2PE/PM

  • Reported component ID

    5655OPE00

  • Reported release

    310

  • Status

    CLOSED PER

  • PE

    NoPE

  • HIPER

    NoHIPER

  • Special Attention

    NoSpecatt

  • Submitted date

    2006-07-03

  • Closed date

    2006-10-10

  • Last modified date

    2006-11-06

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

    PK25850

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

    UK18633 PK33539

Modules/Macros

  •    DGOACALC DGOAEXIT DGOBARDD DGOBARLK DGOBARLO
    DGOBARPK DGOBARPO DGOBARPT DGOBARRI DGOBARRL DGOBARSH DGOBARSP
    DGOBARSQ DGOBARTE DGOBARTM DGOBATDD DGOBATLK DGOBATLO DGOBATPK
    DGOBATPO DGOBATPT DGOBATRI DGOBATRL DGOBATSH DGOBATSP DGOBATSQ
    DGOBATTM DGOBSRBN DGOBSRCM DGOBSRDD DGOBSRLG DGOBSRLK DGOBSRLO
    DGOBSROC DGOBSRPO DGOBSRQP DGOBSRRI DGOBSRSH DGOBSRSP DGOBSRSQ
    DGOBSRSS DGOBSRTM DGOBSTBN DGOBSTCM DGOBSTDD DGOBSTLG DGOBSTLK
    DGOBSTLO DGOBSTOC DGOBSTPO DGOBSTQP DGOBSTRI DGOBSTSH DGOBSTSP
    DGOBSTSQ DGOBSTSS DGOBSTTM DGOFUCAL DGOVSCT2
    

Publications Referenced
GC18964201    

Fix information

  • Fixed component name

    OM XE DB2PE/PM

  • Fixed component ID

    5655OPE00

Applicable component levels

  • R310 PSY UK18633

       UP06/10/12 P F610

Fix is available

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Document Information

Modified date:
06 November 2006