DB2 - Problembeschreibung
Problem IC81715 | Status: Geschlossen |
IN RARE TIMING SCENARIOS WHEN INTRA_PARALLEL ENABLED, A SORT OPERATION THAT SPILLS MAY FAIL WITH SQLSMERGEREC, PROBE:2050. | |
Produkt: | |
DB2 FOR LUW / DB2FORLUW / 970 - DB2 | |
Problembeschreibung: | |
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-Zusammenfassung: | |
**************************************************************** * 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). | |
verfügbare FixPacks: | |
DB2 Version 9.7 Fix Pack 6 for Linux, UNIX, and Windows | |
Lösung | |
Problem was first fixed in DB2 UDB Version 9.7 FixPack 6. | |
Workaround | |
keiner bekannt / siehe Local-Fix | |
Bug-Verfolgung | |
Vorgänger : APAR is sysrouted TO one or more of the following: IC84495 Nachfolger : | |
Weitere Daten | |
Datum - Problem gemeldet : Datum - Problem geschlossen : Datum - der letzten Änderung: | 29.02.2012 06.06.2012 06.06.2012 |
Problem behoben ab folgender Versionen (IBM BugInfos) | |
9.7.FP6 | |
Problem behoben lt. FixList in der Version | |
9.7.0.6 |