DB2 - Problembeschreibung
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 | |
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 |