|
Problem IC68778
|
Status: Closed |
DATABASE CONNECT AND SNAPSHOT TIMES DEGRADE DUE TO TIMESTAMP GENERATION WHEN DATABASE IS SERIALIZED |
| product: |
DB2 FOR LUW / DB2FORLUW / 970 - DB2 |
| Problem description: |
On some platforms, the generation of a timestamp can be a
relatively expensive operation to perform. Some timestamps are
generated while the database is serialized when new connections
are arriving or when a database snapshot is being performed. The
timestamp generation can cause these serialization periods to
last longer and lead to contention that can cause database
applications to be delayed. |
| Problem Summary: |
****************************************************************
* USERS AFFECTED: *
* ALL *
****************************************************************
* PROBLEM DESCRIPTION: *
* On some platforms, the generation of a timestamp can be a *
* relatively expensive operation to perform. Some timestamps *
* are *
* generated while the database is serialized when new *
* connections *
* are arriving or when a database snapshot is being performed. *
* The *
* timestamp generation can cause these serialization periods *
* to *
* last longer and lead to contention that can cause database *
* applications to be delayed. *
****************************************************************
* RECOMMENDATION: *
* Upgrade to DB2 Version 9.7 Fix Pack 4 *
**************************************************************** |
| Local Fix: |
n/a |
| available fix packs: |
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 6 for Linux, UNIX, and Windows
DB2 Version 9.7 Fix Pack 7 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 9a for Linux, UNIX, and Windows
DB2 Version 9.7 Fix Pack 10 for Linux, UNIX, and Windows
|
| Solution |
Problem was first fixed in Version 9.7 Fix Pack 4 |
| Workaround |
not known / see Local fix |
| Timestamps |
Date - problem reported :
Date - problem closed :
Date - last modified :
| 20.05.2010
03.05.2011
03.05.2011 |
| Problem solved at the following versions (IBM BugInfos) |
9.7.FP4
|
| Problem solved according to the fixlist(s) of the following version(s) |
| 9.7.0.4
|
 |
