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MA47049 - LIC-DB-OTHER-PERF COMPLEX OLAP QUERY CONSUMES EXCESSIVE SEGMENT
STORAGE TMPSTGLK

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 APAR (Authorized Program Analysis Report)

Abstract

LIC-DB-OTHER-PERF COMPLEX OLAP QUERY CONSUMES EXCESSIVE SEGMENT
STORAGE TMPSTGLK

Error Description

Code defect with getCoveragePredsInTree method resulting in    
non-optimal performance. Complex OLAP queries running          
concurrently can consume excessive amounts of segment storage,  
which can lead to storage problems on the system. TMPSTGLK      
It is also the case that this code path is not                  
interuptable, so the optimizing query can not be ended.        

Problem Summary

****************************************************************
* PROBLEM: (MA47049) Licensed Program = 5770999 for i 7.3      *
*           Crash Hang Requiring an IPL to Recover             *
*           Usability of a Products MAJOR Function             *
*            High Temp Storage Usage                           *
****************************************************************
* USERS AFFECTED: All IBM i operating system users.            *
****************************************************************
* RECOMMENDATION: Apply LIC PTF MF64926 for i 7.3.             *
****************************************************************
Please see the ERROR DESCRIPTION section.                      

Problem Conclusion

This PTF will ensure that this code path is interuptable. It    
also eliminates unnecessary storage allocations which should    
have a positive affect on the overall system storage.          

Temporary Fix

                       *********                                
                       * HIPER *                                
                       *********                                

Comments

Circumvention


PTFs Available

R720 MF65015 PTF Cover Letter   8249
R730 MF64926 PTF Cover Letter   8242

Affected Modules

         
         

Affected Publications

Summary Information

Status............................................ CLOSED PER
HIPER........................................... Yes
Component.................................. 9400DG3DB
Failing Module.......................... RCHMGR
Reported Release................... R730
Duplicate Of..............................




System i Support

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Document Information

Modified date:
14 September 2018