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MA39539 - LIC-DB-JRN-PERFM DSPJRN ON LARGE RECEIVER BY TIME

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 APAR (Authorized Program Analysis Report)

Abstract

LIC-DB-JRN-PERFM DSPJRN ON LARGE RECEIVER BY TIME

Error Description

DSPJRN ...                                                      
FROMTIME('10/05/20' 005100) TOTIME('10/05/20' 005200)          
returned 2 million entries in 2 minutes.                        
DSPJRN ...                                                      
FROMTIME('10/05/20' 005148) TOTIME('10/05/20' 005149)          
ran for over 40 minutes then was canceled by the user.          
The only difference between the two DSPJRN commands is the      
time. The slow retrieve was a 1 second range.                  
For the slow retrieve JobWatcher showed high disk page faults  
and module #jofinda.                                            
The journal receiver with entries matching the time was 400 gig.

Problem Summary

                                                               
A DSPJRN for a very large receiver took a long time when a      
starting date and time was specified on the command. Choosing a
slightly different starting time allowed the starting journal  
entry to be found quickly.                                      

Problem Conclusion

                                                               
A problem was identified where DSPJRN did not handle a specific
starting time correctly and the entire receiver was searched to
find the starting journal entry. With this fix, the starting    
journal entry will be found quickly.                            

Temporary Fix

Comments

A problem was identified where DSPJRN did not handle a specific
starting time correctly and the entire receiver was searched to
find the starting journal entry. With this fix, the starting    
journal entry will be found quickly.                            

Circumvention


PTFs Available

R540 MF50495 PTF Cover Letter   0292
R545 MF50496 PTF Cover Letter   0292
R610 MF50499 PTF Cover Letter   1102
R611 MF50500 PTF Cover Letter   1102
R710 MF50502 PTF Cover Letter   1116

Affected Modules

         
         

Affected Publications

Summary Information

Status............................................ CLOSED PER
HIPER........................................... No
Component.................................. 9400DG3DB
Failing Module.......................... RCHMGR
Reported Release................... R545
Duplicate Of..............................




System i Support

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Document Information

Modified date:
14 May 2011