|
Problem IC81715
|
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 / 970 - 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:
2012-02-10-10.52.57.057464+540 I1600A594 LEVEL: Severe
PID : 15925410 TID : 12737 PROC : db2sysc
0
INSTANCE: db2pd1 NODE : 000 DB : TRX_DB
APPHDL : 0-3042 APPID:
172.16.1.42.53440.120209145057
AUTHID : DB2PD1
EDUID : 12737 EDUNAME: db2agntp (TRX_DB) 0
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 = 10c10,
poolID = 1, objectID = 3
The associated trap file has a stack trace as below
...
sqlswrit
@103@sqlsBuildRow
sqlsinsr
sqlsinsr
sqlrsinsr
sqlrisr2
@147@sqliScanLeaf2NoLocking
sqlifnxt
.sqlirdk.fdpr.clone.1651
.sqldIndexFetch.fdpr.clone.73
sqldRowFetch
sqlritaSimplePerm
sqlriSectInvoke
sqlrr_smp_router
sqlrr_subagent_router
sqleSubRequestRouter
sqleProcessSubRequest
RunEDU
EDUDriver
sqlzRunEDU
sqloEDUEntry
... |
| Problem Summary: |
****************************************************************
* USERS AFFECTED: *
* DB2 UDB Version 9.7 *
****************************************************************
* PROBLEM DESCRIPTION: *
* See Error Description *
****************************************************************
* RECOMMENDATION: *
* Upgrade to Version 9.7 FixPack 6. *
**************************************************************** |
| Local Fix: |
disable intra_parallel db config parameter (which will have
performance implications). |
| 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 |
Problem was first fixed in DB2 UDB Version 9.7 FixPack 6. |
| Workaround |
not known / see Local fix |
| BUG-Tracking |
forerunner : APAR is sysrouted TO one or more of the following: IC84495
follow-up : |
| Timestamps |
Date - problem reported :
Date - problem closed :
Date - last modified :
| 29.02.2012
06.06.2012
06.06.2012 |
| 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
|
 |
