|
Problem IC87449
|
Status: Geschlossen |
POTENTIAL SLOW LOAD PERFORMANCE WITH MDC/RP TABLE AND GPFS DUE TO MISALIGNED MEMORY BUFFER |
| Produkt: |
DB2 FOR LUW / DB2FORLUW / A10 - DB2 |
| Problembeschreibung: |
When running DB2 LOAD operations into MDC and/or Range
Partitioned tables that reside on GPFS file system, we might see
slow performance together with high GPFS CPU usage. This is
caused by some LOAD code using "non-aligned memory buffer" to do
GPFS Direct I/O.
(Similar code problem potentially exists for regular (non-MDC
and non-RP) tables, but to a much smaller extent; in practice
there should be negligible performance issue with regular
tables.) |
| Problem-Zusammenfassung: |
****************************************************************
* USERS AFFECTED: *
* LOAD + GPFS users *
****************************************************************
* PROBLEM DESCRIPTION: *
* See Error Description *
****************************************************************
* RECOMMENDATION: *
* Upgrade to DB2 Version 10.1 Fix Pack 2. *
**************************************************************** |
| Local-Fix: |
|
| verfügbare FixPacks: |
DB2 Version 10.1 Fix Pack 2 for Linux, UNIX, and Windows
DB2 Version 10.1 Fix Pack 3 for Linux, UNIX, and Windows
DB2 Version 10.1 Fix Pack 4 for Linux, UNIX, and Windows
DB2 Version 10.1 Fix Pack 3a for Linux, UNIX, and Windows
DB2 Version 10.1 Fix Pack 6 for Linux, UNIX, and Windows
|
| Lösung |
Problem was first fixed in DB2 Version 10.1 Fix Pack 2. |
| Workaround |
keiner bekannt / siehe Local-Fix |
| Bug-Verfolgung |
Vorgänger : APAR is sysrouted TO one or more of the following: IC88218
Nachfolger : |
| Weitere Daten |
Datum - Problem gemeldet :
Datum - Problem geschlossen :
Datum - der letzten Änderung:
| 23.10.2012
31.12.2012
31.12.2012 |
| Problem behoben ab folgender Versionen (IBM BugInfos) |
|
| Problem behoben lt. FixList in der Version |
| 10.1.0.2
|
 |
| 10.5.0.2
|
|
