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MF65410 - LIC-DB-OTHER-PERFM Reduce system overhead when rapidly creat

PTF ( Program Temporary Fixes ) Cover letter


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Abstract

LIC-DB-OTHER-PERFM Reduce system overhead when rapidly creat


Pre/Co-Requisite PTF / Fix List

REQ  LICENSED           PTF/FIX  LEVEL

TYPE PROGRAM  RELEASE   NUMBER   MIN/MAX  OPTION
---- -------- --------- -------  -------  ------
CO   5770999  V7R3M0    MF65156   00/00    0000
CO   5770999  V7R3M0    MF64448   00/00    0000
CO   5770999  V7R3M0    MF64449   00/00    0000
CO   5770999  V7R3M0    MF64450   00/00    0000
CO   5770999  V7R3M0    MF63227   00/00    0000
CO   5770999  V7R3M0    MF63761   00/00    0000
CO   5770999  V7R3M0    MF63759   00/00    0000
CO   5770999  V7R3M0    MF63762   00/00    0000
CO   5770999  V7R3M0    MF63515   00/00    0000
CO   5770999  V7R3M0    MF63516   00/00    0000
CO   5770999  V7R3M0    MF63517   00/00    0000
CO   5770999  V7R3M0    MF62179   00/00    0000
CO   5770999  V7R3M0    MF62180   00/00    0000
CO   5770999  V7R3M0    MF61179   00/00    0000



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APAR Error Description / Circumvention

-----------------------------------------------
When a new table is created, database attempts to determine the
average read response time associated with it for use during
query optimization.  Part of this process can result in
temporary storage segments being created, extended and
truncated.  If tables are created and deleted rapidly, this
overhead can be significant.

CORRECTION FOR APAR MA47317 :
-----------------------------
Changes were made to use the average read response time of the
ASP that very small or empty tables reside on, reducing system
overhead.

CIRCUMVENTION FOR APAR MA47317 :
--------------------------------
None.


Activation Instructions


None.




Special Instructions


None.


Default Instructions

THIS PTF CAN BE APPLIED IMMEDIATE OR DELAYED.



Supersedes

PTF/FIX NO(S).  APAR TITLE LINE
--------------  ------------------------------------------------------------
   MF64242      LIC-DB-OTHER-UNPRED Internal Database Maintenance
   MF61707      LIC-DB-OTHER-PERFM DBPMSERVER TASK CAUSING CONTENTION DUE TO
   MF65384      SQL-RUN-THREADS-WAIT JOB WAS IN A STACK WAITING FOR A FIELD
   MF65157      OSP-DB-OTHER-MSGCPF32F9 WHEN VARYING ON IASP
   MF64901      LIC-DB-OTHER-PERFM Attempt to reduce segment extensions and
   MF64572      LIC-DB-OTHER-UNPRED Internal Database Maintenance
   MF64447      OSP-DB-OTHER-UNPRED SQE CHANGED TO HOLD JOBS WHEN QUERY RELA
   MF64408      LIC-DB-OTHER-UNPRED Internal Database Maintenance
   MF64273      LIC-DB-OTHER-UNPRED Internal Database Maintenance
   MF64031      LIC-DB-PERFM 3010 Database Monitor record in Refresh mode
   MF64021      LIC-DB-OTHER-PERFM Attempt to reduce segment extensions and
   MF63226      LIC-DB-OTHER-PERFM Attempt to reduce segment extensions and
   MF63758      LIC-DB-PERFM Database Monitor 3010 record
   MF63269      OSP-UNPRED VL0600BADA VL0600BADD VLOGS CAUSING CORRUPTION
   MF63730      LIC-DB-OTHER-PERFM Query optimization time improvements
   MF63704      LIC-DB-OTHER-F/DBPMTRAP-T/QDBPUT-RC0-MSGMCH3203 Insert/Write
   MF63514      OSP-DB-OTHER-MSGCPI0999 XMLAGG QUERIES MAY RESULT IN LARGE A
   MF63433      LIC-DB-OTHER-PERFM Estimated I/O cost may be computed as 0 r
   MF63022      LIC-DB-OTHER-PERFM Internal Database Maintenance
   MF62332      OSP-UNPRED THIS IS TO GET THE WORKLOAD THE DBPMSERVER TASKS
   MF62178      LIC-DB-OTHER-F/DBLISTHOME-T/QQQOOODBOP-MSGMCH0601 A COMPLEX
   MF61903      OSP-UNPRED THIS IS TO GET THE WORKLOAD THE DBPMSERVER TASKS
   MF61180      LIC-DB-OTHER Enable key range estimate operations to return
   MF62131      LIC-DB-OTHER-PERFM Normal vary on of independant ASP may tak
   MF62001      OSP-DB-OTHER-UNPRED TEMPORARY STORAGE MAY OCCASIONALLY BE OR
   MF60959      LIC-DB-OTHER-UNPRED Internal Database Maintenance

Summary Information

System.............................. i
Models..............................
Release............................. V7R3M0
Licensed Program............... 5770999
APAR Fixed.......................... View details for APAR MA47317
Superseded by:...................... View fix details for PTF MF66648
Recompile........................... N
Library............................. QSYS
MRI Feature ........................ NONE
Cum Level........................... C9116730


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Document information

More support for: i family

Software version: V7R3M0

Operating system(s): OS/400

Reference #: MF65410

Modified date: 02 November 2018