IBM Support

MA46436 - OSP-PERFM QDBFSTCCOL GENERATING HIGH I/O TO DBPMSERVER TASKS

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 APAR (Authorized Program Analysis Report)

Abstract

OSP-PERFM QDBFSTCCOL GENERATING HIGH I/O TO DBPMSERVER TASKS

Error Description

QDBFSTCCOL generating high I/O to DbpmServer Tasks producing a  
system slowdown.                                                

Problem Summary

QDBFSTCCOL generating high I/O to DbpmServer Tasks producing a  
system slowdown.                                                

Problem Conclusion

Code is being added to change the behavior of the QDBFSTCCOL    
job, along with corresponding DbpmServer tasks, in regards to  
how they handle statistic collections over column with AUX data.
 These changes specifically target the number of threads / tasks
to be used and the IO page size being used for scanning the    
table.                                                          

Temporary Fix

Comments

Circumvention


PTFs Available

R710 MF63722 PTF Cover Letter   1000
R720 MF63723 PTF Cover Letter   7290
R730 MF63724 PTF Cover Letter   7283

Affected Modules

         
         

Affected Publications

Summary Information

Status............................................ CLOSED PER
HIPER........................................... No
Component.................................. 9400DG3DB
Failing Module.......................... RCHMGR
Reported Release................... R710
Duplicate Of..............................




System i Support

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Document Information

Modified date:
28 October 2017