DB2 - Problembeschreibung
Problem IT27775 | Status: Geschlossen |
SLOW DATABASE ROLLFORWARD OR HADR REPLAY OF "REDUCE MAX" OPERATION | |
Produkt: | |
DB2 FOR LUW / DB2FORLUW / B10 - DB2 | |
Problembeschreibung: | |
Database rollforward or HADR replay of REDUCE MAX operation will progress with a lower rate than it is required to ensure data consistency. Whilst a record of this type is replayed, in the backtrace of all engine threads one will see all redo workers (db2redow EDUs) but one waiting in: sqlprWaitDuringPRec sqlprFindQueue sqlpPRecProcLog sqlpParallelRecovery sqleSubCoordProcessRequest and a single EDU with sqlbMoveOneExtent or sqlbRedoFreeExtents function on the stack, e.g.: sqlbMoveOneExtent sqlbRedoUpdateEMP sqlbRedo sqldmrdo sqlpRecDbRedo sqlpPRecProcLog sqlpParallelRecovery This is caused by a too high level of synchronization for log records of this type. This APAR will relax the restriction and allow for a faster processing of log records, that affect other tablespaces, whilst "REDUCE MAX" is running. | |
Problem-Zusammenfassung: | |
**************************************************************** * USERS AFFECTED: * * ALL * **************************************************************** * PROBLEM DESCRIPTION: * * See Error Description * **************************************************************** * RECOMMENDATION: * * Upgrade to Db2 11.1 Mod 4 Fixpack 5 or higher * **************************************************************** | |
Local-Fix: | |
Lösung | |
Workaround | |
keiner bekannt / siehe Local-Fix | |
Bug-Verfolgung | |
Vorgänger : IT27769 Nachfolger : | |
Weitere Daten | |
Datum - Problem gemeldet : Datum - Problem geschlossen : Datum - der letzten Änderung: | 15.01.2019 16.01.2020 16.01.2020 |
Problem behoben ab folgender Versionen (IBM BugInfos) | |
Problem behoben lt. FixList in der Version |