DB2 - Problem description
Problem IC69288 | Status: Closed |
HANG in SMP when performing HASH JOIN. Query Can not be forced off. | |
product: | |
DB2 FOR LUW / DB2FORLUW / 970 - DB2 | |
Problem description: | |
Application can not be forced off because there is deadlatch between its subagent processes which are performing hash join. The deadlatch can be like the following: process id: 7024680 Waiting on latch type: (SQLO_LT_sqlriSectInit_C__dynamic_latch) - Address: (7800011455a0e80) , Line: 11023, File: sqlri_hsjn_util.C Holding Latch type: (SQLO_LT_sqlri_hsjnLatch__ioLatch) - Address: (780000cb6ae1348) , Line: 9817, File: sqlri_hsjn_util.C process id: 7594048 Waiting on latch type: (SQLO_LT_sqlri_hsjnLatch__ioLatch) - Address: (780000cb6ae10c8) , Line: 9817, File: sqlri_hsjn_util.C Holding Latch type: (SQLO_LT_sqlriSectInit_C__dynamic_latch) - Address: (7800011455a0e00) , Line: 9603, File: sqlri_hsjn_util.C Holding Latch type: (SQLO_LT_sqlri_hsjnLatch__partLatch) - Address: (780000cb6ae10c0) , Line: 9804, File: sqlri_hsjn_util.C process id: 2601118 Waiting on latch type: (SQLO_LT_sqlriSectInit_C__dynamic_latch) - Address: (7800011455a0e80) , Line: 11023, File: sqlri_hsjn_util.C Holding Latch type: (SQLO_LT_sqlri_hsjnLatch__ioLatch) - Address: (780000cb6ae10c8) , Line: 9817, File: sqlri_hsjn_util.C Process id 7594048 is holding the SQLO_LT_sqlriSectInit_C__dynamic_latch, that process 7024680 is waiting for, but this info is not properly dumped in trap file. The stack of these processes are like: Stack for process id: 7594048: sqloXlatchConflict sqloXlatchAIX sqloXlatchConflict sqloXlatchAIX sqlri_hsjnGetTupleBlock sqlri_hsjnPartitionFull sqlri_hsjnNewTuple sqlrihsjn sqlriSectInvoke Stack for process id: 7024680: sqloXlatchConflict sqloXlatchAIX sqlri_hsjnFreeTupleBlockList sqlri_hsjnFlushBlocks sqlri_hsjnPartitionFull sqlri_hsjnNewTuple sqlrihsjn sqlriSectInvoke | |
Problem Summary: | |
**************************************************************** * USERS AFFECTED: * * DB2 LUW on all supported platforms * **************************************************************** * PROBLEM DESCRIPTION: * * HANG in SMP when performing HASH JOIN. Query Can not * * beforced off. * **************************************************************** * RECOMMENDATION: * * Upgrade to DB2 LUW Version 9.7 Fix Pack 3 * **************************************************************** | |
Local Fix: | |
available fix packs: | |
DB2 Version 9.7 Fix Pack 3 for Linux, UNIX, and Windows | |
Solution | |
Problem was first fixed in Version 9.7 Fix Pack 3 | |
Workaround | |
not known / see Local fix | |
Timestamps | |
Date - problem reported : Date - problem closed : Date - last modified : | 16.06.2010 27.09.2010 27.09.2010 |
Problem solved at the following versions (IBM BugInfos) | |
9.7.FP3 | |
Problem solved according to the fixlist(s) of the following version(s) | |
9.7.0.3 | |
9.7.0.3 |