|
Problem IC62752
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Status: Closed |
PERFORMANCE ISSUE OF CLOSE FOR UR/CS CURSORS WHEN 'WITH RELEASE' IS SPECIFIED |
| product: |
DB2 FOR LUW / DB2FORLUW / 970 - DB2 |
| Problem description: |
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 Summary: |
****************************************************************
* 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 |
| available fix packs: |
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
|
| Solution |
Fixed in DB2 for LUW V97 fp1 |
| Workaround |
not known / see Local fix |
| Timestamps |
Date - problem reported :
Date - problem closed :
Date - last modified :
| 26.08.2009
17.02.2010
17.02.2010 |
| Problem solved at the following versions (IBM BugInfos) |
9.7.FP1
|
| Problem solved according to the fixlist(s) of the following version(s) |
| 9.7.0.1
|
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