DB2 - Problem description
Problem IC82635 | Status: Closed |
INSTANCE HANG POSSIBLE AFTER APPLICATION HEAP MEMORY ERROR IN FUNCTION SQLRWFILTEREDAPPLICATIONITERATOR::EXECUTE | |
product: | |
DB2 FOR LUW / DB2FORLUW / 970 - DB2 | |
Problem description: | |
When an Application Heap memory error is observed in function SQLRWFILTEREDAPPLICATIONITERATOR::Execute the error handling code may leave a resource ( latch ) locked that may eventually lead to an instance hang. The db2diag.log will show the following sequence of messages : FUNCTION: DB2 UDB, WLM, sqlrwExpandableBuffer::getNextElement, probe:10 CALLED : DB2 UDB, WLM, sqlrwExpandableBuffer::getNextElement RETCODE : ZRC=0x8B0F0001=-1961951231=SQLO_NOMEM_APPH "No memory available in 'Application Heap'" DIA8301C No memory available in the application heap. FUNCTION: DB2 UDB, WLM, sqlrwApplicationMetricsBuilder::execute, probe:10 RETCODE : ZRC=0x8B0F0001=-1961951231=SQLO_NOMEM_APPH "No memory available in 'Application Heap'" DIA8301C No memory available in the application heap. FUNCTION: DB2 UDB, WLM, sqlrwFilteredApplicationIterator::execut, probe:20 CALLED : DB2 UDB, WLM, sqlrwFilteredApplicationIterator::execut RETCODE : ZRC=0x8B0F0001=-1961951231=SQLO_NOMEM_APPH "No memory available in 'Application Heap'" DIA8301C No memory available in the application heap. FUNCTION: DB2 UDB, WLM, sqlrwGetConnectionMetrics, probe:20 RETCODE : ZRC=0x8B0F0001=-1961951231=SQLO_NOMEM_APPH "No memory available in 'Application Heap'" DIA8301C No memory available in the application heap. Stack traces collected e.g. via db2fodc -hang will eventually lead to this latch : "SQLO_LT_sqeApplication__masterAppLatch" as the problematic latch. | |
Problem Summary: | |
**************************************************************** * USERS AFFECTED: * * all * **************************************************************** * PROBLEM DESCRIPTION: * * See Error Description * **************************************************************** * RECOMMENDATION: * * Upgrade the DB2 server to V9.7 Fix Pack 7 or above * **************************************************************** | |
Local Fix: | |
Increase the applheapsz parameter or set it to AUTOMATIC to avoid the problem. | |
available fix packs: | |
DB2 Version 9.7 Fix Pack 7 for Linux, UNIX, and Windows | |
Solution | |
This problem has first been fixed in DB2 V9.7 Fix Pack 7 | |
Workaround | |
not known / see Local fix | |
BUG-Tracking | |
forerunner : APAR is sysrouted TO one or more of the following: IC88305 follow-up : | |
Timestamps | |
Date - problem reported : Date - problem closed : Date - last modified : | 12.04.2012 30.10.2012 30.10.2012 |
Problem solved at the following versions (IBM BugInfos) | |
9.7.FP7 | |
Problem solved according to the fixlist(s) of the following version(s) | |
9.7.0.7 |