home clear 64x64
en blue 200x116 de orange 200x116 info letter User
suche 36x36
Neueste VersionenFixList
11.1.0.7 FixList
10.5.0.9 FixList
10.1.0.6 FixList
9.8.0.5 FixList
9.7.0.11 FixList
9.5.0.10 FixList
9.1.0.12 FixList
Haben Sie Probleme? - Kontaktieren Sie uns.
Kostenlos registrieren anmeldung-x26
Kontaktformular kontakt-x26

DB2 - Problembeschreibung

Problem IC80198 Status: Geschlossen

System controller EDU (DB2SYSC) held up due to contention for th e FCM
dynamic update latch causes apparent performance slowdown.

Produkt:
DB2 FOR LUW / DB2FORLUW / 910 - DB2
Problembeschreibung:
Multiple logical nodes on the same machine share the same FCM 
resource pools. The system controller EDU (db2sysc) on each 
logical node wakes up periodically to determine if FCM resource 
tuning is necessary. The system controller EDUs contend for the 
FCM dynamic update latch(m_dynUpdateLatch) in order to perform 
the tuning. The remaining system controller EDUs and agent EDUs 
can end up waiting for the latch until tuning completes and the 
latch is released. This can lead to performance slowdowns.
Problem-Zusammenfassung:
**************************************************************** 
* USERS AFFECTED:                                              * 
* DPF, MPP                                                     * 
**************************************************************** 
* PROBLEM DESCRIPTION:                                         * 
* Multiple logical nodes on the same machine share the same    * 
* FCM resource pools. The system controller EDU (db2sysc) on   * 
* each logical node wakes up periodically to determine if FCM  * 
* resource tuning is necessary. The system controller EDUs     * 
* contend for the FCM dynamic update latch(m_dynUpdateLatch)   * 
* in order to perform the tuning. The remaining system         * 
* controller EDUs and agent EDUs can end up waiting for the    * 
* latch until tuning completes and the latch is released. This * 
* can lead to performance slowdowns.                           * 
**************************************************************** 
* RECOMMENDATION:                                              * 
* Update to version 9.1 fixpack 12 or later fixpacks.          * 
****************************************************************
Local-Fix:
Lösung
This problem is first fixed in version 9.1 fixpack 12.
Workaround
keiner bekannt / siehe Local-Fix
Weitere Daten
Datum - Problem gemeldet    :
Datum - Problem geschlossen :
Datum - der letzten Änderung:
05.12.2011
17.07.2012
17.07.2012
Problem behoben ab folgender Versionen (IBM BugInfos)
9.1.FP12
Problem behoben lt. FixList in der Version