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PM80779: ACCESS DB PERFORMANCE IMPROVEMENT

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You can track all active APARs for this component.

 

APAR status

  • Closed as new function.

Error description

  • ACCESS DB PERFORMANCE IMPROVEMENT

Local fix

  • N/A

Problem summary

  • ****************************************************************
* USERS AFFECTED: All users of ACCESS DATABASE command on DB2  *
*                 DB2 10 for zOS.                              *
****************************************************************
* PROBLEM DESCRIPTION: -ACCESS DATABASE command processes      *
*                      work serially, causing long running     *
*                      times for this command.                 *
****************************************************************
* RECOMMENDATION:                                              *
****************************************************************
-ACCESS DATABASE is used to open datasets for use by DB2 and
to remove objects from group buffer pools. All this work is
performed serially, causing long running time for this command.
Running -ACCESS DATABASE work in parallel will improve the
running time of the command.

Problem conclusion

  • 



Temporary fix


    

  • 



Comments


    

  • DB2 will use internal threads to execute -ACCESS DATABASE
command in parallel.

    



APAR Information




    

  • APAR number
    PM80779
    • 

  • Reported component name
    DB2 OS/390 & Z/
    • 

  • Reported component ID
    5740XYR00
    • 

  • Reported release
    A10
    • 

  • Status
    CLOSED  UR1
    • 

  • PE
    NoPE
    • 

  • HIPER
    NoHIPER
    • 

  • Special Attention
    NoSpecatt
    • 

  • Submitted date
    2013-01-16
    • 

  • Closed date
    2013-06-24
    • 

  • Last modified date
    2013-07-17
    • 





    

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

    • 

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

    
UK95407
    

    • 



Modules/Macros


    

  • DSNIIEPL DSNILSTS DSNTSTRT

    



Fix information


    

  • Fixed component name
    DB2 OS/390 & Z/
    • 

  • Fixed component ID
    5740XYR00
    • 



Applicable component levels


    








      
              
                            

              

              [{"Business Unit":{"code":"BU059","label":"IBM Software w\/o TPS"},"Product":{"code":"SSEPEK","label":"Db2 for z\/OS"},"Component":"","ARM Category":[],"Platform":[{"code":"PF025","label":"Platform Independent"}],"Version":"10.1","Edition":"","Line of Business":{"code":"LOB10","label":"Data and AI"}},{"Business Unit":{"code":"BU054","label":"Systems w\/TPS"},"Product":{"code":"SG19M","label":"APARs - z\/OS environment"},"Component":"","ARM Category":[],"Platform":[{"code":"PF025","label":"Platform Independent"}],"Version":"10.1","Edition":"","Line of Business":{"code":"","label":""}}]
              

                          

          
 
        

      

    

      

        

          

            
Document Information


            

            


                        

            Modified date:
            

            17 July 2013
            

            
                      

        


        

        


      

    

  



    

  

  
    
            

          
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