观察Oracle数据库性能,Oracle自带的awr 功能为我们提供了一个近乎完美的解决方案,通过awr特性我们可以随时从数据库提取awr报告。不过awrrpt.sql脚本执行时需要我们提供一些交互信息,因此可以将其整合到shell脚本中来实现自动产生指定时段的awr报告并发送给相关人员。本文即是描述linux shell脚本来实现此功能。
1、shell脚本
- robin@SZDB:~/dba_scripts/custom/awr> more autoawr.sh
- #!/bin/bash
- # --------------------------------------------------------------------------+
- # CHECK ALERT LOG FILE |
- # Filename: autoawr.sh |
- # Desc: |
- # The script use to generate AWR report and send mail automatic. |
- # The sql script autoawr.sql call by this shell script. |
- # Default, the whole day AWR report will be gathered. |
- # Deploy it to crontab at 00:30 |
- # If you want to change the snap interval,please change autoawr.sql |
- # and crontab configuration |
- # Usage: |
- # ./autoawr.sh $ORACLE_SID |
- # |
- # Author : Robinson |
- # Blog : http://blog.csdn.net/robinson_0612 |
- # --------------------------------------------------------------------------+
- #
- # --------------------------
- # Check SID
- # --------------------------
- if [ -z "${1}" ];then
- echo "Usage: "
- echo " `basename $0` ORACLE_SID"
- exit 1
- fi
- # -------------------------------
- # Set environment here
- # ------------------------------
- if [ -f ~/.bash_profile ]; then
- . ~/.bash_profile
- fi
- export ORACLE_SID=$1
- export MACHINE=`hostname`
- export MAIL_DIR=/users/robin/dba_scripts/sendEmail-v1.56
- export MAIL_LIST='Robinson.cheng@12306.com'
- export AWR_CMD=/users/robin/dba_scripts/custom/awr
- export AWR_DIR=/users/robin/dba_scripts/custom/awr/report
- export MAIL_FM='oracle@szdb.com'
- RETENTION=31
- # ----------------------------------------------
- # check if the database is running, if not exit
- # ----------------------------------------------
- db_stat=`ps -ef | grep pmon_$ORACLE_SID | grep -v grep| cut -f3 -d_`
- if [ -z "$db_stat" ]; then
- #date >/tmp/db_${ORACLE_SID}_stauts.log
- echo " $ORACLE_SID is not available on ${MACHINE} !!!" # >>/tmp/db_${ORACLE_SID}_stauts.log
- MAIL_SUB=" $ORACLE_SID is not available on ${MACHINE} !!!"
- MAIL_BODY=" $ORACLE_SID is not available on ${MACHINE} at `date` when try to generate AWR."
- $MAIL_DIR/sendEmail -u $MAIL_SUB -f $MAIL_FM -t $MAIL_LIST -m $MAIL_BODY
- exit 1
- fi;
- # ----------------------------------------------
- # Generate awr report
- # ----------------------------------------------
- $ORACLE_HOME/bin/sqlplus /nolog<<EOF
- connect / as sysdba;
- @${AWR_CMD}/autoawr.sql;
- exit;
- EOF
- status=$?
- if [ $status != 0 ];then
- echo " $ORACLE_SID is not available on ${MACHINE} !!!" # >>/tmp/db_${ORACLE_SID}_stauts.log
- MAIL_SUB=" Occurred error while generate AWR for ${ORACLE_SID} !!!"
- MAIL_BODY=" Some exceptions encountered during generate AWR report for $ORACLE_SID on `hostname`."
- $MAIL_DIR/sendEmail -u $MAIL_SUB -f $MAIL_FM -t $MAIL_LIST -m $MAIL_BODY
- exit
- fi
- # ------------------------------------------------
- # Send email with AWR report
- # ------------------------------------------------
- dt=`date -d yesterday +%Y%m%d`
- filename=`ls ${AWR_DIR}/${ORACLE_SID}_awrrpt_?_${dt}*`
- if [ -e "${filename}" ];then
- MAIL_SUB="AWR report from ${ORACLE_SID} on `hostname`."
- MAIL_BODY="This is an AWR report from ${ORACLE_SID} on `hostname`."
- $MAIL_DIR/sendEmail -u $MAIL_SUB -f $MAIL_FM -t $MAIL_LIST -m $MAIL_BODY -a ${filename}
- echo ${filename}
- fi
- # ------------------------------------------------
- # Removing files older than $RETENTION parameter
- # ------------------------------------------------
- find ${AWR_DIR} -name "*awrrpt*" -mtime +$RETENTION -exec rm {} \;
- exit
2、产生awr report 的sql脚本
- robin@SZDB:~/dba_scripts/custom/awr> more autoawr.sql
- SET ECHO OFF;
- SET VERI OFF;
- SET FEEDBACK OFF;
- SET TERMOUT ON;
- SET HEADING OFF;
- VARIABLE rpt_options NUMBER;
- DEFINE no_options = 0;
- define ENABLE_ADDM = 8;
- REM according to your needs, the value can be 'text' or 'html'
- DEFINE report_type='html';
- BEGIN
- :rpt_options := &no_options;
- END;
- /
- VARIABLE dbid NUMBER;
- VARIABLE inst_num NUMBER;
- VARIABLE bid NUMBER;
- VARIABLE eid NUMBER;
- BEGIN
- SELECT MIN (snap_id) INTO :bid
- FROM dba_hist_snapshot
- WHERE TO_CHAR (end_interval_time, 'yyyymmdd') = TO_CHAR (SYSDATE-1, 'yyyymmdd');
- SELECT MAX (snap_id) INTO :eid FROM dba_hist_snapshot WHERE TO_CHAR (begin_interval_time,'yyyymmdd') = TO_CHAR (SYSDATE-1, 'yyyymmdd');
- SELECT dbid INTO :dbid FROM v$database;
- SELECT instance_number INTO :inst_num FROM v$instance;
- END;
- /
- COLUMN ext NEW_VALUE ext NOPRINT
- COLUMN fn_name NEW_VALUE fn_name NOPRINT;
- COLUMN lnsz NEW_VALUE lnsz NOPRINT;
- SELECT 'txt' ext
- FROM DUAL
- WHERE LOWER ('&report_type') = 'text';
- SELECT 'html' ext
- FROM DUAL
- WHERE LOWER ('&report_type') = 'html';
- SELECT 'awr_report_text' fn_name
- FROM DUAL
- WHERE LOWER ('&report_type') = 'text';
- SELECT 'awr_report_html' fn_name
- FROM DUAL
- WHERE LOWER ('&report_type') = 'html';
- SELECT '80' lnsz
- FROM DUAL
- WHERE LOWER ('&report_type') = 'text';
- SELECT '1500' lnsz
- FROM DUAL
- WHERE LOWER ('&report_type') = 'html';
- set linesize &lnsz;
- COLUMN report_name NEW_VALUE report_name NOPRINT;
- SELECT instance_name || '_awrrpt_' || instance_number || '_' || b.timestamp || '.' || '&ext'
- report_name
- FROM v$instance a,
- (SELECT TO_CHAR (begin_interval_time, 'yyyymmdd') timestamp
- FROM dba_hist_snapshot
- WHERE snap_id = :eid) b;
- SET TERMOUT OFF;
- SPOOL $AWR_DIR/&report_name;
- SELECT output
- FROM TABLE (DBMS_WORKLOAD_REPOSITORY.&fn_name (:dbid,
- :inst_num,
- :bid,
- :eid,
- :rpt_options));
- SPOOL OFF;
- SET TERMOUT ON;
- CLEAR COLUMNS SQL;
- TTITLE OFF;
- BTITLE OFF;
- REPFOOTER OFF;
- UNDEFINE report_name
- UNDEFINE report_type
- UNDEFINE fn_name
- UNDEFINE lnsz
- UNDEFINE no_options
3、补充说明
a、shell脚本中首先判断指定的实例是否处于available,如果不可用则退出
b、接下来调用autoawr.sql脚本来产生awr report
c、产生awr report后,如果文件存在则自动发送邮件
d、autoawr.sql脚本中是产生awr report的主要部分,主要是调用了DBMS_WORKLOAD_REPOSITORY.&fn_name过程
e、该脚本是生成一整天awr report,即从当天的零点至第二天零点
f、sql脚本的几个参数需要确定的是dbid,实例号,以及snap的开始与结束id,rpt_options用于确定报告是否带addm项
g、可以根据需要定制所需的snap的起止id,需修改SQL来获取正确的snap id,来生成所需的报告
h、根据需要修改fn_name定制生成awr报告为txt或html类型,report_name则是确定最终文件名
i、AWR 报告的两个snap 之间不能有重启DB的操作,否则有可能错误(未测试过)
j、该脚本支持Oracle 10g/11g,有关详细的产生awr report脚本说明请参考oracle自带的awrrpt.sql,awrrpti.sql
转:http://blog.csdn.net/leshami/article/details/8655991