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标签归档:SYSAUX
WRI$_ADV_OBJECTS表过大,导致SYSAUX表空间不足
12.2的sysaux表空间使用过大
SQL> select * from v$version; BANNER CON_ID -------------------------------------------------------------------------------- ---------- Oracle Database 12c Enterprise Edition Release 12.2.0.1.0 - 64bit Production 0 PL/SQL Release 12.2.0.1.0 - Production 0 CORE 12.2.0.1.0 Production 0 TNS for Linux: Version 12.2.0.1.0 - Production 0 NLSRTL Version 12.2.0.1.0 - Production 0 SQL> @tbs Name TS Type All Size(MB) Max Size(MB) Free Size(MB) Max Free Pct. Free Max Free% --------- ---------- -------------- -------------- -------------- --------- --------- --------- SYSAUX PERMANENT 32,760 32,768 26 34 0 0 USERS PERMANENT 1,784 32,768 85 31,069 5 95 SYSTEM PERMANENT 860 32,768 10 31,917 1 97 R_INDEX PERMANENT 5,900 229,376 927 224,403 16 98 RICHMAN PERMANENT 3,000 196,608 1,895 195,503 63 99 UNDOTBS1 UNDO 1,600 32,768 1,560 32,728 97 100 6 rows selected.
awrinfo查看
******************************************************** (1b) SYSAUX occupants space usage (v$sysaux_occupants) ******************************************************** | | Occupant Name Schema Name Space Usage | -------------------- -------------------- ---------------- | SM/ADVISOR SYS 30,422.9 MB | SM/OPTSTAT SYS 1,222.7 MB | SM/AWR SYS 588.2 MB | SM/OTHER SYS 152.4 MB ********************************** (4) Space usage by non-AWR components (> 500K) ********************************** COMPONENT MB SEGMENT_NAME SEGMENT_TYPE --------- --------- ------------------------------------------------- ------------- NON_AWR 15,675.0 SYS.WRI$_ADV_OBJECTS TABLE NON_AWR 8,764.0 SYS.WRI$_ADV_OBJECTS_IDX_01 INDEX NON_AWR 5,959.0 SYS.WRI$_ADV_OBJECTS_PK INDEX NON_AWR 488.0 SYS.I_WRI$_OPTSTAT_H_OBJ#_ICOL#_ST INDEX NON_AWR 249.0 SYS.I_WRI$_OPTSTAT_H_ST INDEX
这里为ADVISOR功能模块导致,而且主要是WRI$_ADV_OBJECTS表及其索引
分析主要对象
SQL> COL SEGMENT_NAME FORMAT A30 SQL> COL OWNER FORMAT A10 SQL> COL TABLESPACE_NAME FORMAT A10 SQL> COL SEGMENT_TYPE FORMAT A15 SQL> SELECT * FROM (SELECT SEGMENT_NAME,OWNER,TABLESPACE_NAME,BYTES/1024/1024 2 "SIZE(MB)",SEGMENT_TYPE FROM DBA_SEGMENTS WHERE 3 TABLESPACE_NAME='SYSAUX' ORDER BY BYTES DESC) WHERE ROWNUM<=10; SEGMENT_NAME OWNER Name SIZE(MB) SEGMENT_TYPE ------------------------------ ---------- ---------- ---------- --------------- WRI$_ADV_OBJECTS SYS SYSAUX 15675 TABLE WRI$_ADV_OBJECTS_IDX_01 SYS SYSAUX 8764 INDEX WRI$_ADV_OBJECTS_PK SYS SYSAUX 5959 INDEX I_WRI$_OPTSTAT_H_OBJ#_ICOL#_ST SYS SYSAUX 488 INDEX I_WRI$_OPTSTAT_H_ST SYS SYSAUX 249 INDEX SYS_LOB0000007350C00005$$ SYS SYSAUX 133.1875 LOBSEGMENT SYS_LOB0000010641C00038$$ SYS SYSAUX 110.1875 LOBSEGMENT WRH$_SQL_PLAN SYS SYSAUX 64 TABLE I_WRI$_OPTSTAT_HH_OBJ_ICOL_ST SYS SYSAUX 51 INDEX SYS_LOB0000067470C00006$$ MDSYS SYSAUX 50.1875 LOBSEGMENT 10 rows selected.
这里也比较明显主要是由于WRI$_ADV_OBJECTS表及其index占用空间较多导致.WRI$_ADV_OBJECTS表主要是12.2新特性Optimizer Statistics Advisor功能使用到的表,用来存储相关数据
清理WRI$_ADV_OBJECTS相关数据
DECLARE v_tname VARCHAR2(32767); BEGIN v_tname := 'AUTO_STATS_ADVISOR_TASK'; DBMS_STATS.DROP_ADVISOR_TASK(v_tname); END; / EXEC DBMS_STATS.INIT_PACKAGE(); ALTER TABLE WRI$_ADV_OBJECTS MOVE; ALTER INDEX WRI$_ADV_OBJECTS_IDX_01 REBUILD; ALTER INDEX WRI$_ADV_OBJECTS_PK REBUILD;
禁用Optimizer Statistics Advisor Task
DECLARE filter1 CLOB; BEGIN filter1 := DBMS_STATS.CONFIGURE_ADVISOR_RULE_FILTER('AUTO_STATS_ADVISOR_TASK','EXECUTE',NULL,'DISABLE'); END; /
参考文档:SYSAUX Tablespace Grows Rapidly After Upgrading Database to 12.2.0.1 Due To Statistics Advisor (Doc ID 2305512.1)