|
Problem IC66531
|
Status: Closed |
DB2 EXPORT CREATES EXCESSIVE LOCKING ON CATALOG TABLES. |
| product: |
DB2 FOR LUW / DB2FORLUW / 970 - DB2 |
| Problem description: |
Multiple locks on SYSDEPENDECIES and SYSSEQUENCES for rows that
are not related to the table that is being exported. The problem
occurs only when the select part of the statemt uses the wild
card *:
db2 export to <FILE> of ixf messages <MSG FILE> select * from
<source schema>.<source_table>
The query that is executed againtst the catalog tables with the
isolation level that the package has been bound. In this case
RS.
The problem can be avoided if it is exported to DEL or ASC. Also
if the list of columns is provided in the export statament. |
| Problem Summary: |
****************************************************************
* USERS AFFECTED: *
* All *
****************************************************************
* PROBLEM DESCRIPTION: *
* Excessive locking while running db2 export. It will *
* locktimeout other applications generally waiting on *
* SYSDEPENCIEStable *
****************************************************************
* RECOMMENDATION: *
* Migrate to v97fp2 oravoid using "select * " in the export *
* command. Instead usethe list of columns *
**************************************************************** |
| Local Fix: |
1. Use export to DEL or ASC
2. List the name of the columns for export. Avoid using *. |
| available fix packs: |
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 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 9a 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 |
Problem fixed in v97fp2 |
| Workaround |
not known / see Local fix |
| Timestamps |
Date - problem reported :
Date - problem closed :
Date - last modified :
| 22.02.2010
25.05.2010
25.05.2010 |
| Problem solved at the following versions (IBM BugInfos) |
9.7.FP2
|
| Problem solved according to the fixlist(s) of the following version(s) |
| 9.7.0.2
|
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