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标题: 告警日志中报错ORA-07445 kkqstcrf [打印本页]
作者: jiawang 时间: 2024-8-19 13:34
标题: 告警日志中报错ORA-07445 kkqstcrf
本帖最后由 jiawang 于 2024-8-19 13:34 编辑
问题描述:数据库例行巡检时发现告警日志中报错ORA-07445 kkqstcrf,如下所示:
数据库:oracle 11.2.0.1
告警日志:
Mon Aug 05 22:00:22 2024
Exception [type: SIGSEGV, Address not mapped to object] [ADDR:0x71] [PC:0x1CBAD19, kkqstcrf()+1355] [flags: 0x0, count: 1]
Errors in file /u01/app/oracle/diag/rdbms/jhemrdb/jhemr/trace/jhemr_j004_16801.trc (incident=73575):
ORA-07445: exception encountered: core dump [kkqstcrf()+1355] [SIGSEGV] [ADDR:0x71] [PC:0x1CBAD19] [Address not mapped to object] []
Incident details in: /u01/app/oracle/diag/rdbms/jhemrdb/jhemr/incident/incdir_73575/jhemr_j004_16801_i73575.trc
异常分析:
ora-07445告警频率:每隔4小时报警一次,每天早上6点直到22点;根据MOS [ID 977299.1]文档,此异常与BUG 9050716匹配.
从incident文件可以找到触发该告警的sql语句.
解决方案:
--以下列出两个解决方案:
a、禁用隐藏参数”_optimizer_join_elimination_enabled”,语句如下:
alter system set “_optimizer_join_elimination_enabled”=false scope=both;
如下语句查询该隐含参数值:
select a.ksppinm name, b.ksppstvl value, a.ksppdesc description复制
from x$ksppi a,x$ksppcv b
where a.indx=b.indx
and a.ksppinm='_optimizer_join_elimination_enabled';
b、将数据库从11.2.0.1升级到11.2.0.4
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