DB2 - Problembeschreibung
Problem IC84016 | Status: Geschlossen |
INCORRECT ERROR HANDLING CAUSES INCONSISTENT DPF STMM CONFIGURATIONS | |
Produkt: | |
DB2 FOR LUW / DB2FORLUW / 970 - DB2 | |
Problembeschreibung: | |
When an STMM configuration update fails in DPF - other than a bufferpool change - it may leave the configuration in an inconsistent state across the partitions being tuned. For example, an update to SHEAPTHRES_SHR, PCKCACHESZ, or LOCKLIST may be successful on some partitions and be rolled back on others. This can cause problems with subsequent STMM tuning since the planning of tuning changes assumes all tuned partitions are similar to the tuning partition. For example, subsequent STMM tuning changes may consistently fail, preventing STMM from adjusting to workload demands. There are many db2diag.log entries when an STMM tuning failure occurs in DPF, but the specific entry to look for is the following, with an incorrect listing of "nodes that failed" (these are the nodes where the tuning change actually succeeds): 2011-07-07-01.07.40.143255+120 I5749387A914 LEVEL: Error PID : 5763200 TID : 3343 PROC : db2sysc 2 INSTANCE: udb500 NODE : 002 DB : SAMPLE APPHDL : 2-51 APPID: *N2.DB2.110706225945 AUTHID : db2inst1 EDUID : 3343 EDUNAME: db2stmm (SAMPLE) 2 FUNCTION: DB2 UDB, config/install, sqlfPdbUpdDbCfgReq, probe:1260 DATA #1 : SQLCA, PD_DB2_TYPE_SQLCA, 136 bytes sqlcaid : sqlcabc: 0 sqlcode: -5124 sqlerrml: 1 sqlerrmc: 1 sqlerrp : sqlerrd : (1) 0x00000000 (2) 0x00000000 (3) 0x00000000 (4) 0x00000000 (5) 0x00000000 (6) 0x00000001 sqlwarn : (1) (2) (3) (4) (5) (6) (7) (8) (9) (10) (11) sqlstate: DATA #2 : String, 73 bytes Number of failed nodes: 10 Nodes that failed: 3, 4, 5, 6, 7, and others. The configuration on the tuned partitions can also be checked to see whether the PCKCACHESZ, LOCKLIST, and SHEAPTHRES_SHR settings are consistent. | |
Problem-Zusammenfassung: | |
**************************************************************** * USERS AFFECTED: * * DPF systems configured to use STMM tuning * **************************************************************** * PROBLEM DESCRIPTION: * * See Error Description * **************************************************************** * RECOMMENDATION: * * Upgrade to DB2 Version 9.7 Fix Pack 7 * **************************************************************** | |
Local-Fix: | |
manually adjust the configuration to correct any inconsistency | |
verfügbare FixPacks: | |
DB2 Version 9.7 Fix Pack 7 for Linux, UNIX, and Windows | |
Lösung | |
First fixed in DB2 Version 9.7 Fix Pack 7 | |
Workaround | |
see Local Fix | |
Bug-Verfolgung | |
Vorgänger : APAR is sysrouted TO one or more of the following: IC84097 Nachfolger : | |
Weitere Daten | |
Datum - Problem gemeldet : Datum - Problem geschlossen : Datum - der letzten Änderung: | 07.06.2012 06.11.2012 06.11.2012 |
Problem behoben ab folgender Versionen (IBM BugInfos) | |
9.7.FP7 | |
Problem behoben lt. FixList in der Version | |
9.7.0.7 |