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DB2 - Problem description
| Problem IC70404 | Status: Closed |
DB2 MAY ABEND DUE TO MEMORY CORRUPTION WHILE ESTIMATING STATISTICS. | |
| product: | |
DB2 FOR LUW / DB2FORLUW / 950 - DB2 | |
| Problem description: | |
DB2 may terminate abnormally upon detecting memory corruption. This can happen if the query is complex with numerous tables and local range predicates. The problem does not happen if there is no local range predicate in the query. The stack trace might look as follows: [0] 0x00002AEB54D36B9B pdLog + 0xD7 [1] 0x00002AEB563C061D /opt/IBM/dwe/db2/V9.5/lib64/libdb2e.so.1 + 0x275661D [2] 0x00002AEB56F63EB5 sqlofmblkEx + 0x8B9 [3] 0x00002AEB54D208AC _Z9sqlofmblkPv + 0x6 [4] 0x00002AEB562354D1 _Z23sqlnr_estimate_sel_cardP9sqlnq_oprP17sqlnq_qtbElemListP17sql nq_prdElemListiiRfS5_RiP3loc + 0x152B [5] 0x00002AEB5623D3E3 _Z23sqlnr_estimate_box_cardP9sqlnq_qtbP17sqlnq_qtbElemListP17sql nq_prdElemListiiRfS5_RiP3loc + 0x2EB [6] 0x00002AEB5623C80D _Z19sqlnr_estimate_cardP9sqlnq_qtbP17sqlnq_qtbElemListP17sqlnq_p rdElemListiiP18sqlnr_qtbStatsListRiP3loc + 0x79D [7] 0x00002AEB5618563F /opt/IBM/dwe/db2/V9.5/lib64/libdb2e.so.1 + 0x251B63F [8] 0x00002AEB56188FCE _Z26sqlnr_joinppd_magic_detailP10sqlnr_qrwaPiP14sqlnr_progress + 0x1038 [9] 0x00002AEB5618BFF7 _Z20sqlnr_joinppd_actionP10sqlnr_qrwaPiP14sqlnr_progress + 0x49 Workaround: None | |
| Problem Summary: | |
**************************************************************** * USERS AFFECTED: * * db2_v95fp5 * **************************************************************** * PROBLEM DESCRIPTION: * * DB2 may terminate abnormally upon detecting memory * * corruption. * * This can happen if the query is complex with numerous tables * * and * * local range predicates. The problem does not happen if there * * is * * no local range predicate in the query. * * * * The stack trace might look as follows: * * * * * * * * [0] 0x00002AEB54D36B9B pdLog + 0xD7 * * * * [1] 0x00002AEB563C061D * * * * /opt/IBM/dwe/db2/V9.5/lib64/libdb2e.so.1 + 0x275661D * * * * [2] 0x00002AEB56F63EB5 sqlofmblkEx + 0x8B9 * * * * [3] 0x00002AEB54D208AC _Z9sqlofmblkPv + 0x6 * * * * [4] 0x00002AEB562354D1 * * * * _Z23sqlnr_estimate_sel_cardP9sqlnq_oprP17sqlnq_qtbElemListP17s * nq_prdElemListiiRfS5_RiP3loc * * * * + 0x152B * * * * [5] 0x00002AEB5623D3E3 * * * * _Z23sqlnr_estimate_box_cardP9sqlnq_qtbP17sqlnq_qtbElemListP17s * nq_prdElemListiiRfS5_RiP3loc * * * * + 0x2EB * * * * [6] 0x00002AEB5623C80D * * * * _Z19sqlnr_estimate_cardP9sqlnq_qtbP17sqlnq_qtbElemListP17sqlnq * rdElemListiiP18sqlnr_qtbStatsListRiP3loc * * * * + 0x79D * * * * [7] 0x00002AEB5618563F * * * * /opt/IBM/dwe/db2/V9.5/lib64/libdb2e.so.1 + 0x251B63F * * * * [8] 0x00002AEB56188FCE * * * * _Z26sqlnr_joinppd_magic_detailP10sqlnr_qrwaPiP14sqlnr_progress * + * * 0x1038 * * * * [9] 0x00002AEB5618BFF7 * * * * _Z20sqlnr_joinppd_actionP10sqlnr_qrwaPiP14sqlnr_progress + * * 0x49 * **************************************************************** * RECOMMENDATION: * * db2_v95fp7 * **************************************************************** | |
| Local Fix: | |
| available fix packs: | |
DB2 Version 9.5 Fix Pack 7 for Linux, UNIX, and Windows | |
| Solution | |
| Workaround | |
not known / see Local fix | |
| BUG-Tracking | |
forerunner : APAR is sysrouted TO one or more of the following: IC70474 IC70475 follow-up : | |
| Timestamps | |
Date - problem reported : Date - problem closed : Date - last modified : | 04.08.2010 30.12.2010 30.12.2010 |
| Problem solved at the following versions (IBM BugInfos) | |
| Problem solved according to the fixlist(s) of the following version(s) | |
| 9.1.0.7 |
|
| 9.5.0.7 |
|
