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PK50325: SCREEN ZLOCKC DOES NOT SHOW INORMATION ABOUT GLOBAL LOCKS

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

  • The locking conflicts screen (ZLOCKC - Option L.) does not show
    a conflict when the thread is waiting for a global lock.
    Thou global lock wait info is available on screen ZLOCKW.
    
    Screenshots while the locking conflict exists :
    
     ________________ ZALLT    VTM     O2       V410./C TB1B
    07/27/07
    8:33:53   2
    > Help PF1      Back PF3       Up PF7      Down PF8     Sort
    PF10    Zoom PF11
    >
    T.A
    
    
    >         THREAD ACTIVITY:  Enter a selection letter on the top
    line.
    
    
    
    > *-ALL         B-TSO      C-CICS      D-IMS     E-BACKGROUND
    F-
    DIST ALLIED
    > G-DIST DBAC   H-UTIL     I-INACT     J-FILTER  K-FUNCTIONS
    L-
    STORED PROC
    > M-TRIGGERS    N-SYSPLEX  O-ENCLAVES  P-
    WORKSTA
    ================================================================
    ====
    
    ===========
    >                       ALL THREADS CONNECTED TO
    DB2
    
    THDA
    
    
    
    *
    
    
      Elapsed      Planname  CPU    Status       GetPg  Update
    Commit
    CORRID
      ----------   --------  -----  ------------ ------ ------
    ------ --
    
    ----------
      00:01:36.1   KO2PLAN   00.0%  NOT-IN-DB2        0      0
    0
    O2CI
      00:00:12.8   DSNESPCS  00.5%  WAIT-GLBLOCK   2611      0
    0
    TDMWS1
    ================================================================
    ====
    
    ===========
     ________________ ZLOCKC   VTM     O2       V410./C TB1B
    07/27/07
    8:34:10   2
    >       Help PF1      Back PF3      Up PF7      Down PF8
    Zoom
    
    PF11
    >
    L.
    
    
    ================================================================
    ====
    
    ===========
    >                             LOCKING
    CONFLICTS
    
    
    
    
    XLOK
    
    
           No Locking Conflicts
    Detected
    ================================================================
    ====
    
    ===========
    
    
    
     ________________ ZLOCKW   VTM     O2       V410./C TB1B
    07/27/07
    8:34:27   2
    > Help PF1               Back PF3               Up
    PF7                Down PF8
    
    
    
    >       THREAD INFORMATION:  Enter a selection letter on the top
    line.
    
    
    
    > A-THREAD DETAIL B-LOCK COUNTS *-LOCK WAITS     D-LOCKS OWNED
    E-
    GLOBAL LOCKS
    > F-CURRENT SQL   G-SQL COUNTS  H-DISTRIBUTED    I-BUFFER POOL
    J-
    GROUP BP
    > K-PACKAGES      L-RES LIMIT   M-PARALLEL TASKS N-UTILITY
    O-
    OBJECTS
    > P-CANCEL THREAD Q-DB2 CONSOLE D-DSN ACTIVITY   S-APPL TRACE
    T-
    ENCLAVE
    > U-LONG
    NAMES
    
    
    ================================================================
    ====
    
    ===========
    >                    LOCKS/CLAIMS CAUSING A THREAD TO
    WAIT
    
    PLAN
    
    
      Thread:  Plan=DSNESPCS  Connid=TSO      Corrid=TDMWS1
    Authid=TDM
                                                         Original
    Authid=TDMWS1
      Attach:  TSO            Userid=TDMWS1
    Region asid= 16K
      Package: DSNESM68
    Collection=DSNESPCS
    
    wait
    
    
           Thread Is Currently Suspended Waiting To Obtain The
    Following Lock
           Type=TABL  Level=IS  Resource = DB=TESTDB01
    PS=TESTTS01
    
    
    
           Wait For Lock Time  =   45 Seconds     # to repeat lock
    timeout =    1
           IRLM Time Out Value =   60
    Seconds
    
    
    
           The Lock Being Waited On Is Not Owned By User On This
    DB2
    ================================================================
    ====
    
    ===========
    

Local fix

  • N/A
    

Problem summary

  • ****************************************************************
    * USERS AFFECTED: OMEGAMON XE for DB2 PE/DB2PM                 *
    *                 users of component:                          *
    *                 -   Classic Interface                        *
    ****************************************************************
    * PROBLEM DESCRIPTION: ZLOCKC Panel does not show Global Locks *
    *                      where the lock owner is on a different  *
    *                      member of a data sharing group.         *
    ****************************************************************
    * RECOMMENDATION: Apply this PTF.                              *
    ****************************************************************
    On Panel ZLOCKC if owner of lock was not found the waiter for
    lock was not shown. For Global Locks the owner can be on another
    member of the data sharing group.
    

Problem conclusion

  • Show lock waiters when lock owners are not found.
    
    KEYWORDS : ZLOCKC LOCK CONFLICT XLOK
    

Temporary fix

Comments

APAR Information

  • APAR number

    PK50325

  • Reported component name

    OM XE DB2PE/PM

  • Reported component ID

    5655OPE00

  • Reported release

    410

  • Status

    CLOSED PER

  • PE

    NoPE

  • HIPER

    NoHIPER

  • Special Attention

    NoSpecatt / Xsystem

  • Submitted date

    2007-08-02

  • Closed date

    2007-08-13

  • Last modified date

    2017-02-04

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

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

    UK28157

Modules/Macros

  •    KO2CIFIA KO2CIFIS KO2CIFI2 KO2CTHBA KO2CTHBS
    KO2CTHB2
    

Fix information

  • Fixed component name

    OM XE DB2PE/PM

  • Fixed component ID

    5655OPE00

Applicable component levels

  • R410 PSY UK28157

       UP07/08/15 P F708

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:
04 February 2017