|
Problem IC72908
|
Status: Geschlossen |
LOGGER SCALABILITY (ROLLFORWARD AND CRASH RECOVERY) MAY CAUSE PROBLEMS ON DPF MLN ENVIRONMENTS |
| Produkt: |
DB2 FOR LUW / DB2FORLUW / 950 - DB2 |
| Problembeschreibung: |
Usually DB2 will create the same number of redo workers as the
number of cpu's on the machine. For example, if your machine
has 4 CPUs, DB2 will create 4 redo workers for rollforward or
crash recovery. This can cause a problem in a DPF MLN
environment. For example, if you have 3 nodes and do a
rollforward on all 3 nodes, you may end up with 12 redo workers
which could cause performance degradation. |
| Problem-Zusammenfassung: |
****************************************************************
* USERS AFFECTED: *
* DPF databases *
****************************************************************
* PROBLEM DESCRIPTION: *
* Usually DB2 will create the same number of redo workers as *
* the *
* number of cpu's on the machine. For example, if your *
* machine *
* has 4 CPUs, DB2 will create 4 redo workers for rollforward *
* or *
* crash recovery. This can cause a problem in a DPF MLN *
* *
* environment. For example, if you have 3 nodes and do a *
* *
* rollforward on all 3 nodes, you may end up with 12 redo *
* workers *
* which could cause performance degradation. *
****************************************************************
* RECOMMENDATION: *
* Apply Version 9.5 Fixpack 7 *
**************************************************************** |
| Local-Fix: |
|
| verfügbare FixPacks: |
DB2 Version 9.5 Fix Pack 7 for Linux, UNIX, and Windows
DB2 Version 9.5 Fix Pack 8 for Linux, UNIX, and Windows
DB2 Version 9.5 Fix Pack 9 for Linux, UNIX, and Windows
DB2 Version 9.5 Fix Pack 10 for Linux, UNIX, and Windows
|
| Lösung |
Apply Version 9.5 Fixpack 7 |
| Workaround |
keiner bekannt / siehe Local-Fix |
| Weitere Daten |
Datum - Problem gemeldet :
Datum - Problem geschlossen :
Datum - der letzten Änderung:
| 30.11.2010
31.01.2011
31.01.2011 |
| Problem behoben ab folgender Versionen (IBM BugInfos) |
9.5.FP7
|
| Problem behoben lt. FixList in der Version |
| 9.1.0.7
|
 |
| 9.5.0.7
|
|
