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DB2 - Problembeschreibung

Problem IC62752 Status: Geschlossen

PERFORMANCE ISSUE OF CLOSE FOR UR/CS CURSORS WHEN 'WITH
RELEASE' IS SPECIFIED

Produkt:
DB2 FOR LUW / DB2FORLUW / 970 - DB2
Problembeschreibung:
If "WITH RELEASE" is specified on a CLOSE of a cursor opened 
with isolation UR or CS (or equivalently if 
SQL_ATTR_CLOSE_BEHAVIOR is set to SQL_CC_RELEASE for a UR or CS 
isolation cursor), the close cursor processing may be delayed if 
the transaction holds many locks. 
 
With the change introduced in this APAR, the performance of such 
a close (with RELEASE) will improve and will not be sensitive to 
the number of locks held by the transaction.
Problem-Zusammenfassung:
**************************************************************** 
* USERS AFFECTED:                                              * 
* applications using UR cursors and closing 'with release'     * 
**************************************************************** 
* PROBLEM DESCRIPTION:                                         * 
* close cursor performs slowly if WITH RELEASE is specified    * 
**************************************************************** 
* RECOMMENDATION:                                              * 
* move to DB2 for LUW V97fp1                                   * 
****************************************************************
Local-Fix:
Do not specify RELEASE behaviour for CLOSE of CS or UR cursors
verfügbare FixPacks:
DB2 Version 9.7 Fix Pack 1 for Linux, UNIX, and Windows
DB2 Version 9.7 Fix Pack 2 for Linux, UNIX, and Windows
DB2 Version 9.7 Fix Pack 3 for Linux, UNIX, and Windows
DB2 Version 9.7 Fix Pack 3a for Linux, UNIX, and Windows
DB2 Version 9.7 Fix Pack 4 for Linux, UNIX, and Windows
DB2 Version 9.7 Fix Pack 5 for Linux, UNIX, and Windows
DB2 Version 9.7 Fix Pack 7 for Linux, UNIX, and Windows
DB2 Version 9.7 Fix Pack 9a for Linux, UNIX, and Windows
DB2 Version 9.7 Fix Pack 6 for Linux, UNIX, and Windows
DB2 Version 9.7 Fix Pack 8 for Linux, UNIX, and Windows
DB2 Version 9.7 Fix Pack 9 for Linux, UNIX, and Windows
DB2 Version 9.7 Fix Pack 10 for Linux, UNIX, and Windows

Lösung
Fixed in DB2 for LUW V97 fp1
Workaround
keiner bekannt / siehe Local-Fix
Weitere Daten
Datum - Problem gemeldet    :
Datum - Problem geschlossen :
Datum - der letzten Änderung:
26.08.2009
17.02.2010
17.02.2010
Problem behoben ab folgender Versionen (IBM BugInfos)
9.7.FP1
Problem behoben lt. FixList in der Version
9.7.0.1 FixList