IBM Support

MA46424 - 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 MF63718 PTF Cover Letter   1000
 R720 MF63827 PTF Cover Letter   8032
 R730 MF63933 PTF Cover Letter   8242

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:
14 September 2018

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