利用shell脚本自动获取awr报表

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。通过报告可以了解一个系统的整个运行情况，生成的报告包括多个部分。

如何获取awr报告？

通过awrrpt.sql脚本执行
通过调用ORALCE的包dbms_workload_repository.awr_report_html/dbms_workload_repository.awr_report_text

获取awr报告通常是采用html形式；打开页面比较友好；也方便查看。

通过方法1 awrrpt.sql脚本执行需要我们提供一些交互信息。操作也比较简单。本文通过shell脚本中来实现自动产生指定时段的awr报告。采用方法2。

1.  产生awr report 的sql脚本 autoawr.sql

SET ECHO OFF;

SET VERI OFF;

SET FEEDBACK OFF;

SET TERMOUT ON;

SET HEADING OFF;  

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;

/  

set pagesize 0;

set linesize 121;

COLUMN report_name NEW_VALUE report_name NOPRINT;

SELECT instance_name || '_awrrpt_' || instance_number || '_' || b.timestamp || '.' || 'html'

          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.awr_report_html(:dbid,

                                                 :inst_num,

                                                 :bid,

                                                 :eid));

SPOOL OFF;

SET TERMOUT ON;

CLEAR COLUMNS SQL;

TTITLE OFF;

BTITLE OFF;

REPFOOTER OFF;  

UNDEFINE report_name

2. 产生awr report 的shell脚本autoawr.sh

#!/bin/bash

if [ -f ~/.bash_profile ]; then

    source ~/.bash_profile

fi 

export AWR_CMD=/home/oracle/awr

export AWR_DIR=/home/oracle/awr/report

RETENTION=31 

# ----------------------------------------------

# Generate awr report

# ----------------------------------------------

$ORACLE_HOME/bin/sqlplus / as sysdba<<EOF

@${AWR_CMD}/autoawr.sql;

exit;

EOF

# ------------------------------------------------

# Removing files older than $RETENTION parameter

# ------------------------------------------------  

find ${AWR_DIR} -name "*awrrpt*" -mtime +$RETENTION -exec rm {} \;

exit

利用shell脚本自动获取awr报表的相关教程结束。