监控Oracle数据库的常用shell脚本

分析表和索引（以得到更好的性能）

　　以下我将展示如果传送参数到一个脚本中：

#################################################################### ## analyze_table.sh ## #################################################################### #!/bin/ksh # input parameter: 1: password # 2: SID if (($#<1)) then echo "Please enter 'oracle' user password as the first parameter !" exit 0 fi if (($#<2)) then echo "Please enter instance name as the second parameter!" exit 0 fi

　　要传入参数以执行该脚本，输入：

$ analyze_table.sh manager oradb1

　　脚本的第一部分产生了一个analyze.sql文件，里面包含了分析表用的语句。脚本的第二部分分析全部的表：

##################################################################### ## analyze_table.sh ## ##################################################################### sqlplus -s < oracle/$1@$2 set heading off set feed off set pagesize 200 set linesize 100 spool analyze_table.sql select 'ANALYZE TABLE ' || owner || '.' || segment_name || ' ESTIMATE STATISTICS SAMPLE 10 PERCENT;' from dba_segments where segment_type = 'TABLE' and owner not in ('SYS', 'SYSTEM'); spool off exit ! sqlplus -s < oracle/$1@$2 @./analyze_table.sql exit !

　　以下是analyze.sql的一个例子：

$ cat analyze.sql ANALYZE TABLE HIRWIN.JANUSAGE_SUMMARY ESTIMATE STATISTICS SAMPLE 10 PERCENT; ANALYZE TABLE HIRWIN.JANUSER_PROFILE ESTIMATE STATISTICS SAMPLE 10 PERCENT; ANALYZE TABLE APPSSYS.HIST_SYSTEM_ACTIVITY ESTIMATE STATISTICS SAMPLE 10 PERCENT; ANALYZE TABLE HTOMEH.QUEST_IM_VERSION ESTIMATE STATISTICS SAMPLE 10 PERCENT; ANALYZE TABLE JSTENZEL.HIST_SYS_ACT_0615 ESTIMATE STATISTICS SAMPLE 10 PERCENT; ANALYZE TABLE JSTENZEL.HISTORY_SYSTEM_0614 ESTIMATE STATISTICS SAMPLE 10 PERCENT; ANALYZE TABLE JSTENZEL.CALC_SUMMARY3 ESTIMATE STATISTICS SAMPLE 10 PERCENT; ANALYZE TABLE IMON.QUEST_IM_LOCK_TREE ESTIMATE STATISTICS SAMPLE 10 PERCENT; ANALYZE TABLE APPSSYS.HIST_USAGE_SUMMARY ESTIMATE STATISTICS SAMPLE 10 PERCENT; ANALYZE TABLE PATROL.P$LOCKCONFLICTTX ESTIMATE STATISTICS SAMPLE 10 PERCENT;

　　检查表空间的使用

　　以下的脚本检测表空间的使用。如果表空间只剩下10%，它将会发送一个警告email。

##################################################################### ## ck_tbsp.sh ## ##################################################################### #!/bin/ksh sqlplus -s < oracle/$1@$2 set feed off set linesize 100 set pagesize 200 spool tablespace.alert SELECT F.TABLESPACE_NAME, TO_CHAR ((T.TOTAL_SPACE - F.FREE_SPACE),'999,999') "USED (MB)", TO_CHAR (F.FREE_SPACE, '999,999') "FREE (MB)", TO_CHAR (T.TOTAL_SPACE, '999,999') "TOTAL (MB)", TO_CHAR ((ROUND ((F.FREE_SPACE/T.TOTAL_SPACE)*100)),'999')||' %' PER_FREE FROM ( SELECT TABLESPACE_NAME, ROUND (SUM (BLOCKS*(SELECT VALUE/1024 FROM V\$PARAMETER WHERE NAME = 'db_block_size')/1024) ) FREE_SPACE FROM DBA_FREE_SPACE GROUP BY TABLESPACE_NAME ) F, ( SELECT TABLESPACE_NAME, ROUND (SUM (BYTES/1048576)) TOTAL_SPACE FROM DBA_DATA_FILES GROUP BY TABLESPACE_NAME ) T WHERE F.TABLESPACE_NAME = T.TABLESPACE_NAME AND (ROUND ((F.FREE_SPACE/T.TOTAL_SPACE)*100)) < 10; spool off exit ! if [ `cat tablespace.alert|wc -l` -gt 0 ] then cat tablespace.alert -l tablespace.alert > tablespace.tmp mailx -s "TABLESPACE ALERT for ${2}" $DBALIST < tablespace.tmp fi

　　警告email输出的例子如下：

TABLESPACE_NAME USED (MB) FREE (MB) TOTAL (MB) PER_FREE ------------------- --------- ----------- ------------------- ------------------ SYSTEM 2,047 203 2,250 9 % STBS01 302 25 327 8 % STBS02 241 11 252 4 % STBS03 233 19 252 8 %

　　查找出无效的数据库对象

　　以下查找出无效的数据库对象：

##################################################################### ## invalid_object_alert.sh ## ##################################################################### #!/bin/ksh . /etc/oracle.profile sqlplus -s < oracle/$1@$2 set feed off set heading off column object_name format a30 spool invalid_object.alert SELECT OWNER, OBJECT_NAME, OBJECT_TYPE, STATUS FROM DBA_OBJECTS WHERE STATUS = 'INVALID' ORDER BY OWNER, OBJECT_TYPE, OBJECT_NAME; spool off exit ! if [ `cat invalid_object.alert|wc -l` -gt 0 ] then mailx -s "INVALID OBJECTS for ${2}" $DBALIST < invalid_object.alert fi$ cat invalid_object.alert OWNER OBJECT_NAME OBJECT_TYPE STATUS ---------------------------------------------------------------------- HTOMEH DBMS_SHARED_POOL PACKAGE BODY INVALID HTOMEH X_$KCBFWAIT VIEW INVALID IMON IW_MON PACKAGE INVALID IMON IW_MON PACKAGE BODY INVALID IMON IW_ARCHIVED_LOG VIEW INVALID IMON IW_FILESTAT VIEW INVALID IMON IW_SQL_FULL_TEXT VIEW INVALID IMON IW_SYSTEM_EVENT1 VIEW INVALID IMON IW_SYSTEM_EVENT_CAT VIEW INVALIDLBAILEY CHECK_TABLESPACE_USAGE PROCEDURE INVALID PATROL P$AUTO_EXTEND_TBSP VIEW INVALID SYS DBMS_CRYPTO_TOOLKIT PACKAGE INVALID SYS DBMS_CRYPTO_TOOLKIT PACKAGE BODY INVALID SYS UPGRADE_SYSTEM_TYPES_TO_816 PROCEDURE INVALID SYS AQ$_DEQUEUE_HISTORY_T TYPE INVALID SYS HS_CLASS_CAPS VIEW INVALID SYS HS_CLASS_DD VIEW INVALID

　　监视用户和事务（死锁等）

　　以下的脚本在死锁发生的时候发送一个警告e-mail：

################################################################### ## deadlock_alert.sh ## ################################################################### #!/bin/ksh .. /etc/oracle.profile sqlplus -s < oracle/$1@$2 set feed off set heading off spool deadlock.alert SELECT SID, DECODE(BLOCK, 0, 'NO', 'YES' ) BLOCKER, DECODE(REQUEST, 0, 'NO','YES' ) WAITER FROM V$LOCK WHERE REQUEST > 0 OR BLOCK > 0 ORDER BY block DESC; spool off exit ! if [ `cat deadlock.alert|wc -l` -gt 0 ] then mailx -s "DEADLOCK ALERT for ${2}" $DBALIST < deadlock.alert fi

　　结论

0,20,40 7-17 * * 1-5 /dba/scripts/ckinstance.sh > /dev/null 2>&1 0,20,40 7-17 * * 1-5 /dba/scripts/cklsnr.sh > /dev/null 2>&1 0,20,40 7-17 * * 1-5 /dba/scripts/ckalertlog.sh > /dev/null 2>&1 30 * * * 0-6 /dba/scripts/clean_arch.sh > /dev/null 2>&1 * 5 * * 1,3 /dba/scripts/analyze_table.sh > /dev/null 2>&1 * 5 * * 0-6 /dba/scripts/ck_tbsp.sh > /dev/null 2>&1 * 5 * * 0-6 /dba/scripts/invalid_object_alert.sh > /dev/null 2>&1 0,20,40 7-17 * * 1-5 /dba/scripts/deadlock_alert.sh > /dev/null 2>&1

　　通过以上的脚本，可大大减轻你的工作。你可以使用这些是来做更重要的工作，例如性能调整。

查看本文来源