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PK21754: GEN PERFORMANCE PROBLEM.

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APAR status

  • Closed as program error.

Error description

  • GEN performance issues when processing large sets of objects
and assoicated views.

Local fix

  • 



Problem summary


    

  • ****************************************************************
* USERS AFFECTED: Users of DB2 Administration Tool, who use    *
*                 GEN on DB2 V7, may be affected.              *
****************************************************************
* PROBLEM DESCRIPTION: Under   certain   circumstances,   the  *
*                      execution time for the ADB2GEN process  *
*                      can  be  unacceptably  long.  This  is  *
*                      particularly  true  not only for large  *
*                      workloads, but  when  the DB2 plan for  *
*                      the  "query UNION ALL query"  did  not  *
*                      have  the  joined  tables  in the best  *
*                      order.                                  *
****************************************************************
* RECOMMENDATION:                                              *
****************************************************************
See Problem Description.

    



Problem conclusion


    

  • Apply the fix.

    



Temporary fix


    

  • 



Comments


    

  • 



APAR Information




    

  • APAR number
    PK21754
    • 

  • Reported component name
    DB2 OBJECT COMP
    • 

  • Reported component ID
    5697G6400
    • 

  • Reported release
    710
    • 

  • Status
    CLOSED  PER
    • 

  • PE
    NoPE
    • 

  • HIPER
    NoHIPER
    • 

  • Special Attention
    NoSpecatt
    • 

  • Submitted date
    2006-03-17
    • 

  • Closed date
    2006-04-12
    • 

  • Last modified date
    2006-05-01
    • 





    

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

    • 

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

    • 



Modules/Macros


    

  •    ADBCX    ADB2REM  ADB2REP  ADB2RER  ADB2RES

    



Fix information


    

  • Fixed component name
    DB2 ADMIN TOOL
    • 

  • Fixed component ID
    568851500
    • 



Applicable component levels


    

  • R710  PSY  UK13525
       UP06/04/19  P  F604
    • 



Fix is available


    

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Document Information


            

            


                        

            Modified date:
            

            01 May 2006
            

            
                      

        


        

        


      

    

  



    

  

  
    
            

          
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