DB2 - Problembeschreibung
Problem IC77128 | Status: Geschlossen |
DB2 INSTANCE CRASHED WITH SIGSEGV | |
Produkt: | |
DB2 FOR LUW / DB2FORLUW / 910 - DB2 | |
Problembeschreibung: | |
This problem occurs when a reorg recommended operation alter column is performed on a partitioned table which has outstanding asynchronized Index Cleaning (AIC) jobs. DB2 instance crashed with the following in db2diag.log: 2011-05-09-00.15.50.106430-300 E8796E1368 LEVEL: Severe PID : 21982 TID : 47712760678304PROC : db2taskp (TWHPR1) 0 INSTANCE: twhpr00 NODE : 000 DB : TWHPR1 APPHDL : 0-20 APPID: *LOCAL.DB2.110509051557 AUTHID : TWHPR00 FUNCTION: DB2 UDB, SQO Memory Management, sqloDiagnoseFreeBlockFailure, probe:999 MESSAGE : Memory validation failure, diagnostic file dumped. DATA #1 : String, 28 bytes Corrupt pool free tree node. DATA #2 : File name, 24 bytes p21982t0_diagnostics.mem CALLSTCK: [0] 0x00002B64F715C0DF _ZN8SMemPool32diagnoseMemoryCorruptionAndCrashEmPKc + 0x1EF [1] 0x00002B64F8466AE3 _ZN8SMemPool10MemTreeGetEmmPPvPP17SqloChunkSubgroupPP12SMemLostN ode + 0x57B [2] 0x00002B64F84672E6 _ZN8SMemPool19allocateMemoryBlockEmmmjmPPvPP17SqloChunkSubgroupP P12SMemLostNodeP12SMemLogEvent + 0xCE [3] 0x00002B64F84653BE sqlogmblkEx + 0x3DE [4] 0x00002B64F6B9B6DA _Z18sqliGetKeyWorkAreaP17SQLI_KEY_WORKAREAP10SQLI_IDXCBm + 0x10A [5] 0x00002B64F7E2B7B3 _Z20sqliReorgCleanupKeysP7SQLI_CB + 0x2C3 [6] 0x00002B64F7E833E7 _Z21sqliAsyncIndexCleanupP20sqle_agent_privatecbP6AIC_CBm + 0x1B7 [7] 0x00002B64F826E971 aicTaskProcessor + 0x1B9 [8] 0x00002B64F8262A6D _ZN8ABPAgent19taskProcessorDriverEP17ABPTaskProContext + 0x1ED [9] 0x00002B64F8262EA9 _ZN8ABPAgent4mainEP17ABPTaskProContext + 0xC9 | |
Problem-Zusammenfassung: | |
Users Effected: All users Problem Description: DB2 INSTANCE CRASHED WITH SIGSEGV Problem Summary: This problem occurs when a reorg recommended operation alter column is performed on a partitioned table which has outstanding asynchronized Index Cleaning (AIC) jobs. DB2 instance crashed with the following in db2diag.log: 2011-05-09-00.15.50.106430-300 E8796E1368 LEVEL: Severe PID : 21982 TID : 47712760678304PROC : db2taskp (TWHPR1) 0 INSTANCE: twhpr00 NODE : 000 DB : TWHPR1 APPHDL : 0-20 APPID: *LOCAL.DB2.110509051557 AUTHID : TWHPR00 FUNCTION: DB2 UDB, SQO Memory Management, sqloDiagnoseFreeBlockFailure, probe:999 MESSAGE : Memory validation failure, diagnostic file dumped. DATA #1 : String, 28 bytes Corrupt pool free tree node. DATA #2 : File name, 24 bytes p21982t0_diagnostics.mem CALLSTCK: [0] 0x00002B64F715C0DF _ZN8SMemPool32diagnoseMemoryCorruptionAndCrashEmPKc + 0x1EF [1] 0x00002B64F8466AE3 _ZN8SMemPool10MemTreeGetEmmPPvPP17SqloChunkSubgroupPP12SMemLostN ode + 0x57B [2] 0x00002B64F84672E6 _ZN8SMemPool19allocateMemoryBlockEmmmjmPPvPP17SqloChunkSubgroupP P12SMemLostNodeP12SMemLogEvent + 0xCE [3] 0x00002B64F84653BE sqlogmblkEx + 0x3DE [4] 0x00002B64F6B9B6DA _Z18sqliGetKeyWorkAreaP17SQLI_KEY_WORKAREAP10SQLI_IDXCBm + 0x10A [5] 0x00002B64F7E2B7B3 _Z20sqliReorgCleanupKeysP7SQLI_CB + 0x2C3 [6] 0x00002B64F7E833E7 _Z21sqliAsyncIndexCleanupP20sqle_agent_privatecbP6AIC_CBm + 0x1B7 [7] 0x00002B64F826E971 aicTaskProcessor + 0x1B9 [8] 0x00002B64F8262A6D _ZN8ABPAgent19taskProcessorDriverEP17ABPTaskProContext + 0x1ED [9] 0x00002B64F8262EA9 _ZN8ABPAgent4mainEP17ABPTaskProContext + 0xC9 | |
Local-Fix: | |
When encountering the problem, after crash, use the following to by pass AIC in crash recovery: 1) set DB2_DISABLE_ABP=yes 2) drop index and recreate the index 3) unset DB2_DISABLE_ABP Use the following to avoid the problem: Check if there are outstanding index cleanup jobs from SYSTASKS before ALTER a column. | |
verfügbare FixPacks: | |
DB2 Version 9.1 Fix Pack 11 for Linux, UNIX and Windows | |
Lösung | |
defect wsdbu00844839 CSD First fixed in DB2 UDB Version 9, FixPak 11 module engn_sqx | |
Workaround | |
Upgrade to DB2 Version 9, Fix Pack 11 | |
Bug-Verfolgung | |
Vorgänger : APAR is sysrouted TO one or more of the following: IC78409 IC78410 Nachfolger : | |
Weitere Daten | |
Datum - Problem gemeldet : Datum - Problem geschlossen : Datum - der letzten Änderung: | 23.06.2011 07.12.2011 07.12.2011 |
Problem behoben ab folgender Versionen (IBM BugInfos) | |
9.0. | |
Problem behoben lt. FixList in der Version | |
9.1.0.11 |