DB2 - Problembeschreibung
| Problem IT02443 | Status: Geschlossen |
MON_GET_MEMORY_SET DISPLAYS WRONG MEMORY SET STATISTIC FOR MEMORY_SET_SIZE | |
| Produkt: | |
DB2 FOR LUW / DB2FORLUW / A10 - DB2 | |
| Problembeschreibung: | |
MON_GET_MEMORY_SET is not displaying the correct memory set
statistic for "MEMORY_SET_SIZE". It is intended to represent a
point-in-time maximum memory commitment limit (as controlled by
the instance_memory governance). Instead it represents an
internal virtual memory accounting amount, and in many cases
will significantly overstate the "maximum memory commitment
limit" (also known as instance memory usage/reservation)
As an example, after increasing and decreasing the database
memory configuration for the SAMPLE database, we have correct
values shown through the db2pd -dbptnmem and -memsets tools, but
MON_GET_MEMORY_SET overstates the memory set size/limit.
db2pd -dbptnmem:
Name Mem Used (KB) HWM Used (KB) Cached (KB)
========================================================
...
DB-SAMPLE 145152 1137152 24064
The 145152 KB amount is the correct size / instance memory used
statistic.
db2pd -db sample -memsets :
Memory Sets:
Name Address Id Size(Kb) ...
SAMPLE 0x0700000050000000 711983157 145216 ...
Size is 145216 KB (a slight difference due to metadata).
MON_GET_MEMORY_SET:
db2 select MEMORY_SET_TYPE,MEMORY_SET_SIZE from
table"(mon_get_memory_set('DATABASE',null,null))"
MEMORY_SET_TYPE MEMORY_SET_SIZE
-------------------------------- --------------------
DATABASE 1105068
1105068 KB is the overstated amount. | |
| Problem-Zusammenfassung: | |
**************************************************************** * USERS AFFECTED: * * All * **************************************************************** * PROBLEM DESCRIPTION: * * See Error Description * **************************************************************** * RECOMMENDATION: * * Upgrade to the latest fix pack. * **************************************************************** | |
| Local-Fix: | |
| Lösung | |
The problem is fixed in DB2 UDB Version 10.1 Fix Pack 5 | |
| Workaround | |
keiner bekannt / siehe Local-Fix | |
| Weitere Daten | |
Datum - Problem gemeldet : Datum - Problem geschlossen : Datum - der letzten Änderung: | 11.06.2014 13.07.2015 13.07.2015 |
| Problem behoben ab folgender Versionen (IBM BugInfos) | |
| Problem behoben lt. FixList in der Version | |
| 10.1.0.5 |
|