基本环境
数据库:oracle 12.2 RAC
操作系统:unix&solaris 11.3
报错现像
今天处理别的问题查看告警日志偶然发现大量的报错,无法扩展SYSAUX表空间
于是登录系统,查看系统表空间使用情况,发现SYSAUX表空间用满了
查看SYSAUX表空间情况
使用SQL检查一下占用,
SELECT occupant_name"Item",round(space_usage_kbytes/1024/1024,3)"Space Used (GB)",schema_name "Schema",move_procedure "MoveProcedure" FROM v$sysaux_occupants ORDER BY 2 Desc;
返回如下:
再检查segment_names查看
select * from ( select segment_name,sum(bytes)/1024/1024 total_mb,tablespace_name from dba_segments where tablespace_name in ('SYSTEM','SYSAUX') group by segment_name,tablespace_name order by 2 desc) where rownum
返回如下:
释放表空间AUD$UNIFIED
需要用到Dbms包来处理
BEGIN DBMS_AUDIT_MGMT.CLEAN_AUDIT_TRAIL( audit_trail_type => DBMS_AUDIT_MGMT.AUDIT_TRAIL_UNIFIED, container => DBMS_AUDIT_MGMT.CONTAINER_CURRENT, use_last_arch_timestamp => FALSE); END; /
use_last_arch_timestamp这个地方有两个选项:
-
USE_LAST_ARCH_TIMESTAMP
: Enter either of the following settings:-
TRUE
: Deletes audit records created before the last archive timestamp. To set the archive timestamp, see Step 3: Optionally, Set an Archive Timestamp for Audit Records. The default (and recommended) value is . Oracle recommends that you set to .TRUE
USE_LAST_ARCH_TIMESTAMP
TRUE
-
FALSE
: Deletes all audit records without considering last archive timestamp. Be careful about using this setting, in case you inadvertently delete audit records that should not have been deleted.
-
处理完再次查看
清理之后会留下清理记录,可通过SQL查看
select * from UNIFIED_AUDIT_TRAIL where OBJECT_NAME='DBMS_AUDIT_MGMT' and OBJECT_SCHEMA='SYS' AND SQL_TEXT LIKE '%DBMS_AUDIT_MGMT.CLEAN_AUDIT_TRAIL%';
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