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DB2 - Problembeschreibung

Problem IC75236 Status: Geschlossen

OCCASIONAL STMM TUNING FAILURES DECREASING DATABASE MEMORY

Produkt:
DB2 FOR LUW / DB2FORLUW / 970 - DB2
Problembeschreibung:
Since 9.5 GA, STMM has been using database memory statistics 
from before the tuning cycle to adjust database memory overflow, 
if needed, at the end of the cycle.  This is incorrect, as 
Database Memory may have changed significantly during the cycle, 
including from STMM tuning itself. This occasionally results in 
internal failures logged to the db2diag.log. This is corrected 
in the next tuning cycle, and has no significant effect on 
database operations or STMM tuning. 
 
Sample db2diag.log messages: 
 
2010-08-04-17.39.26.305875+120 E14014A730  LEVEL: Warning 
 
PID : 503850  TID : 20304  PROC : db2sysc 0 
 
INSTANCE: db2inst1  NODE : 000  DB : SAMPLE 
 
APPHDL  : 0-54                 APPID: *N0.DB2.100729183327 
AUTHID  : db2inst1 
EDUID   : 20304                EDUNAME: db2stmm (SAMPLE) 0 
FUNCTION: DB2 UDB, Self tuning memory manager, 
stmmDecreaseDBMemOriginatedBySTMM, probe:1616 
MESSAGE : 
ZRC=0x02AE00A5=44957861=STMM_DBMEM_COULD_NOT_BE_DECREASED 
          "The DATABASE_MEMORY parameter could not be decreased" 
DATA #1 : String, 141 bytes 
Overflow memory decrease amount exceeds overflow size. 
DATABASE_MEMORY decrease failed. Decrease amount: 686325760, 
overflow size: 634912768 
 
2010-08-04-17.39.26.313915+120 I14745A564  LEVEL: Severe 
 
PID : 503850  TID : 20304  PROC : db2sysc 0 
 
INSTANCE: db2inst1  NODE : 000  DB : SAMPLE 
 
APPHDL  : 0-54                 APPID: *N0.DB2.100729183327 
AUTHID  : db2inst1 
EDUID   : 20304                EDUNAME: db2stmm (SAMPLE) 0 
FUNCTION: DB2 UDB, config/install, sqlfUpdateDbCfg, probe:5417 
MESSAGE : ZRC=0x00000553=1363 
DATA #1 : <preformatted> 
DB cfg update happened non-dyn resulting in 1363. 
action: 5
Problem-Zusammenfassung:
**************************************************************** 
* USERS AFFECTED:                                              * 
* Systems configured to have STMM tune overall database memory * 
* (Database_Memory = AUTOMATIC, SELF_TUNING_MEM = ON)          * 
**************************************************************** 
* PROBLEM DESCRIPTION:                                         * 
* See Error Description                                        * 
**************************************************************** 
* RECOMMENDATION:                                              * 
* Messages can be ignored as the problem has very limited      * 
* impact                                                       * 
****************************************************************
Local-Fix:
verfügbare FixPacks:
DB2 Version 9.7 Fix Pack 5 for Linux, UNIX, and Windows
DB2 Version 9.7 Fix Pack 6 for Linux, UNIX, and Windows
DB2 Version 9.7 Fix Pack 7 for Linux, UNIX, and Windows
DB2 Version 9.7 Fix Pack 8 for Linux, UNIX, and Windows
DB2 Version 9.7 Fix Pack 9 for Linux, UNIX, and Windows
DB2 Version 9.7 Fix Pack 9a for Linux, UNIX, and Windows
DB2 Version 9.7 Fix Pack 10 for Linux, UNIX, and Windows

Lösung
Problem first fixed in DB2 Version 9.7 Fix Pack 5
Workaround
keiner bekannt / siehe Local-Fix
Weitere Daten
Datum - Problem gemeldet    :
Datum - Problem geschlossen :
Datum - der letzten Änderung:
23.03.2011
02.02.2012
02.02.2012
Problem behoben ab folgender Versionen (IBM BugInfos)
9.7.FP5
Problem behoben lt. FixList in der Version
9.7.0.5 FixList