|
Problem IC79625
|
Status: Closed |
INSTANCE CAN CRASH WHEN STATEMENT MONITOR IS TURN ON |
| product: |
DB2 FOR LUW / DB2FORLUW / 970 - DB2 |
| Problem description: |
Instance can crash with the following stack when the Statement
Monitor switch is turned ON
0 ossDumpStackTraceEx
1 OSSTrapFile::dumpEx
2 sqlo_trce
3 sqloEDUCodeTrapHandler
4 __pthread_mutex_cond_lock
5 sqm_add_ss_counters
6 sqm_take_stmt_snap
7 sqm_snap_appl
8 sqlmonssagnt
9 sqlmonssbackend
10 sqlesrvr
11 sqleMappingFnServer |
| Problem Summary: |
****************************************************************
* USERS AFFECTED: *
* ALL *
****************************************************************
* PROBLEM DESCRIPTION: *
* Instance can crash with the following stack when the *
* Statement *
* Monitor switch is turned ON *
* *
* 0 ossDumpStackTraceEx *
* 1 OSSTrapFile::dumpEx *
* 2 sqlo_trce *
* 3 sqloEDUCodeTrapHandler *
* 4 __pthread_mutex_cond_lock *
* 5 sqm_add_ss_counters *
* 6 sqm_take_stmt_snap *
* 7 sqm_snap_appl *
* 8 sqlmonssagnt *
* 9 sqlmonssbackend *
* 10 sqlesrvr *
* 11 sqleMappingFnServer *
****************************************************************
* RECOMMENDATION: *
* Upgrade to DB2 Version 9.7 Fix Pack 6. *
**************************************************************** |
| Local Fix: |
Set statement monitor switch to OFF (DFT_MON_STMT) and make sure
that the statement monitor switch is not turned on for the
sessions (db2 get monitor switches).
Note that db2top -s Statement option has Statement Monitor
switch turned on by default so using db2top to monitor
statements will make the system vulnerable to this APAR. |
| 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 |
Upgrade to DB2 Version 9.7 Fix Pack 6. |
| Workaround |
Set statement monitor switch to OFF (DFT_MON_STMT) and make sure
that the statement monitor switch is not turned on for the
sessions (db2 get monitor switches). |
| Timestamps |
Date - problem reported :
Date - problem closed :
Date - last modified :
| 04.11.2011
21.07.2014
21.07.2014 |
| Problem solved at the following versions (IBM BugInfos) |
9.7.FP6
|
| Problem solved according to the fixlist(s) of the following version(s) |
| 9.7.0.6
|
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