DB2 FOR LUW / DB2FORLUW / A10 - DB2

STMM may incorrectly calculate performance benefits for package 
cache when statements are invalidated.  For example, cached 
statements may be invalidated because of dependencies on dropped 
objects, and when those statements are executed again - 
necessitating recompilation, STMM may incorrectly calculate the 
compilation could be avoided with a larger package cache. 
 
The most obvious sign of this is that STMM increase the package 
cache configured size before it is reached.  This can be seen by 
comparing the logical usage high water mark in db2pd -db 
<database> -mempools against its configured size (current 
PCKCACHESZ setting, or the "configured size" from db2pd -db 
<database> -mempools on Version 10.1 and higher).

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* USERS AFFECTED:                                              * 
* systems using STMM to tune package cache                     * 
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* PROBLEM DESCRIPTION:                                         * 
* See Error Description                                        * 
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* RECOMMENDATION:                                              * 
* Upgrade to DB2 Version 10.1 Fix Pack 5                       * 
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use manual tuning of package cache

Problem first fixed in DB2 Version 10.1 Fix Pack 5

see Local Fix

Datum - Problem gemeldet    :
Datum - Problem geschlossen :
Datum - der letzten Änderung:

18.03.2014
14.07.2015
14.07.2015