|
Problem IC80424
|
Status: Closed |
DB2 may encounter 'deadlock' on system catalog SYSIBM.SYSCOLAUTH when performing two DROP TABLE statements simultaneously. |
| product: |
DB2 FOR LUW / DB2FORLUW / 970 - DB2 |
| Problem description: |
Deadlocks on system catalog may occur when concurrently perform
two DROP TABLE statements on two different tables.
To identify the problem, you need to use DB2 event monitor to
collect detailed information for deadlocks.
When the deadlock error occurs, in the event monitor output you
will see the following entries:
=============================================
Table of lock waited on : SYSPLANDEP
Schema of lock waited on : SYSIBM
Type of lock: Row
Mode of lock: X - Exclusive
Mode application requested on lock: S - Share
Text : drop table NEWTON.T1
Table of lock waited on : SYSCOLAUTH
Schema of lock waited on : SYSIBM
Type of lock: Row
Mode of lock: U - Update
Mode application requested on lock: U - Update
Text : drop table NEWTON.T2
============================================= |
| Problem Summary: |
****************************************************************
* USERS AFFECTED: *
* All users of version 9.7 on Linux, Unix and Windows *
* platforms. *
****************************************************************
* PROBLEM DESCRIPTION: *
* See Error Description *
****************************************************************
* RECOMMENDATION: *
* Upgrade to DB2 LUW Version 9.7 FixPak 6 or higher levels. *
**************************************************************** |
| Local Fix: |
Perform the two DROP TABLE statements sequentially. |
| available fix packs: |
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 |
First fixed in DB2 LUW Version 9.7 FixPak 6. |
| Workaround |
Perform the two DROP TABLE statements sequentially. |
| Timestamps |
Date - problem reported :
Date - problem closed :
Date - last modified :
| 14.12.2011
11.06.2012
11.06.2012 |
| Problem solved at the following versions (IBM BugInfos) |
9.7.
|
| Problem solved according to the fixlist(s) of the following version(s) |
| 9.7.0.6
|
 |
