DB2 - Problem description
Problem IC91538 | Status: Closed |
INSTANCE CRASH WHEN DATABASE MANAGER HAS INTRA_PARALLEL SET TO "ON" AND MAX_QUERY_DEGREE IS GREATER THEN 1 OR IS "ANY" | |
product: | |
DB2 FOR LUW / DB2FORLUW / 970 - DB2 | |
Problem description: | |
Instance abnormal termination might occur with following stack: Failing instruction at 000000000245F2DA offset: 0000000000000048 in <?sqlno_order_normalize@@YAHPEAUsqlno_globals@@PEAUsqlno_order_c lass@@PEAUsqlno_plan_properties@@PEAUsqlno_apcb@@PEAPEAU2@W4SQLN N_BOOLEAN@@PEATsqlno_set@@@Z> <NotFound:-1> ------RBP--------------RIP--------------ARGS-------------------- ------------------------------------- 0000000010A13DA0 000000000245F2DA 0000000010A13F68 0000000000000000 0000000010A13C38 000007FE6443CDA0 offset: 0000000000000048 in <?sqlno_order_normalize@@YAHPEAUsqlno_globals@@PEAUsqlno_order_c lass@@PEAUsqlno_plan_properties@@PEAUsqlno_apcb@@PEAPEAU2@W4SQLN N_BOOLEAN@@PEATsqlno_set@@@Z> <NotFound:-1> 0000000010A13E90 000000000247BAF8 0000000000000000 000007FE508803F0 0000000000000000 00000000026AAC20 offset: 000000000000007E in <?sqlno_post_order_near_normalize@@YAHPEAUsqlno_globals@@PEAUsql no_plan_properties@@PEAUsqlno_order_class@@PEAPEAU3@@Z> <NotFound:-1> 0000000010A13E98 0000000039800F0D 000007FE508803F0 0000000000000000 00000000026AAC20 000007FE6443CDA0 offset: 000000000000D037 in <sqlnoSmpPostPassMain> <NotFound:-1> This situation might happen under one of the following circumstances: - database manager has INTRA_PARALLEL ON and MAX_QUERY_DEGREE is greater then 1 or is ANY. - The CURRENT QUERY DEGREE special register is greater then 1 or is ANY - the query involves an OLAP function with a partition by clause fully covering the unique key columns of a table or the unique keys of several table which are joined together to preserve all the keys - all the key columns referenced in the partition by of the OLAP function are bound to local predicates. | |
Problem Summary: | |
**************************************************************** * USERS AFFECTED: * * All users * **************************************************************** * PROBLEM DESCRIPTION: * * See Error Description * **************************************************************** * RECOMMENDATION: * * Upgrade to DB2 UDB Version 9.7 FixPack 9 * **************************************************************** | |
Local Fix: | |
Turn off intra_partition parallelism: db2 update dbm cfg using INTRA_PARALLEL NO and restart the instance. OR set CURRENT QUERY DEGREE 1 for the affected queries | |
available fix packs: | |
DB2 Version 9.7 Fix Pack 9 for Linux, UNIX, and Windows | |
Solution | |
Problem was first fixed in DB2 UDB Version 9.7 FixPack 9 | |
Workaround | |
Turn off intra_partition parallelism: db2 update dbm cfg using INTRA_PARALLEL NO and restart the instance. OR set CURRENT QUERY DEGREE 1 for the affected queries | |
BUG-Tracking | |
forerunner : APAR is sysrouted TO one or more of the following: IC91848 IC95246 IT06759 follow-up : | |
Timestamps | |
Date - problem reported : Date - problem closed : Date - last modified : | 14.04.2013 17.12.2013 17.12.2013 |
Problem solved at the following versions (IBM BugInfos) | |
9.7.FP9 | |
Problem solved according to the fixlist(s) of the following version(s) | |
9.7.0.9 | |
9.7.0.9 |