|
Problem IC72099
|
Status: Closed |
IN RARE TIMING SCENARIOS WHEN INTRA_PARALLEL ENABLED, A SORT OPERATION THAT SPILLS MAY FAIL WITH SQLSMERGEREC, PROBE:2050. |
| product: |
DB2 FOR LUW / DB2FORLUW / 980 - DB2 |
| Problem description: |
When the intra_parallel db config parameter is enabled, in some
rare race-condition timing scenarios a sort operation that
spills to a temp table may fail with the following db2diag.log
entry:
2009-11-11-11.01.15.322651+480 I84870761A521 LEVEL: Severe
PID : 2478472 TID : 1 PROC :
db2agntp (FJDWDB) 32
INSTANCE: fjdwinst NODE : 032
APPHDL : 1-456 APPID: O68150A7.M30A.027703061026
AUTHID : MK
FUNCTION: DB2 UDB, sort/list services, sqlsmergerec, probe:2050
MESSAGE : Creating Temporary Table for sort spill, but one
already exists.
Aborting sort operation. Contact IBM Support.
slestatus = 870c40,
poolID = 1, objectID = 26 |
| Problem Summary: |
****************************************************************
* USERS AFFECTED: *
* All users of version 9.8 on Linux, Unix and *
* Windowsplatforms. *
****************************************************************
* PROBLEM DESCRIPTION: *
* When the intra_parallel db config parameter is enabled, *
* insome rare race-condition timing scenarios a sort *
* operationthat spills to a temp table may fail with the *
* followingdb2diag.log entry:2009-11-11-11.01.15.322651+480 *
* I84870761A521 LEVEL:SeverePID : 2478472 *
* TID : 1 PROC :db2agntp (FJDWDB) 32INSTANCE: *
* fjdwinst NODE : 032APPHDL : 1-456 *
* APPID:O68150A7.M30A.027703061026AUTHID : MKFUNCTION: DB2 *
* UDB, sort/list services, sqlsmergerec,probe:2050MESSAGE : *
* Creating Temporary Table for sort spill, but onealready *
* exists.Aborting sort operation. Contact IBM *
* Support.slestatus = 870c40,poolID = 1, objectID = 26 *
****************************************************************
* RECOMMENDATION: *
* Upgrade to DB2 UDB Version 9.8 FixPak 3 or higher levels. *
**************************************************************** |
| Local Fix: |
disable intra_parallel db config parameter (which will have
performance implications). |
| available fix packs: |
DB2 Version 9.8 Fix Pack 3 for Linux, UNIX, and Windows
DB2 Version 9.8 Fix Pack 4 for AIX and Linux
DB2 Version 9.8 Fix Pack 5 for AIX and Linux
|
| Solution |
First fixed in DB2 UDB Version 9.8 FixPak 3. |
| Workaround |
disable intra_parallel db config parameter (which will have
performance implications). |
| Timestamps |
Date - problem reported :
Date - problem closed :
Date - last modified :
| 21.10.2010
10.01.2011
10.01.2011 |
| Problem solved at the following versions (IBM BugInfos) |
9.8.
|
| Problem solved according to the fixlist(s) of the following version(s) |
| 9.8.0.3
|
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