经验丰富的老员工希望能够每天为数据库生成1个AWR报告,以便于后期分析数据库的性能变化,手动生成太麻烦,查了一下资料,发现可以自动生成,过程如下。
数据库环境:11gR2 RAC(双节点)
AWR报告:由于是RAC数据库,希望生成每个节点的报告及全局报告,时间段为:第一天的0点~第二天的0点。
(1)在oracle服务器上创建路径
server2$[/home/oracle]mkdir awrreport
(2)创建directory并授权(使用sys账户执行)
create or replace directory DIR_AWRREPORT as ‘/home/oracle/awrreport‘; grant read,write on directory DIR_AWRREPORT to mydba; -- mydba为具有dba权限的用户 grant select on v_$database to mydba; grant select on dba_hist_snapshot to mydba; grant execute on sys.dbms_workload_repository to mydba;
(3)编写脚本(使用监控账户mydba执行)
CREATE OR REPLACE PROCEDURE auto_awrreport AS /* 用途 :自动生成AWR报告 创建人 :gegeman 创建日期:2017-12-08 */ start_snap number; end_snap number; rpt_interval number := 24; --报告间隔(小时) start_time varchar2(14); end_time varchar2(14); awr_file utl_file.file_type; v_dbid number; v_dbname varchar2(20); begin --确定数据库名称与id select dbid,name into v_dbid,v_dbname from v$database; ---查询起始的快照id select max(snap_id) into end_snap from dba_hist_snapshot; start_snap := end_snap-rpt_interval; ---格式化快照时间 select to_char(end_interval_time-rpt_interval/24, ‘yyyymmddhh24‘),to_char(end_interval_time, ‘yyyymmddhh24‘) into start_time,end_time from dba_hist_snapshot where snap_id = end_snap and instance_number = 1; --实例1报告 awr_file := utl_file.fopen(‘DIR_AWRREPORT‘,lower(v_dbname)||‘_1_‘||start_time||‘_‘||end_time||‘.html‘, ‘a‘,32767); for awr_info in (select output from table(dbms_workload_repository.awr_report_html(v_dbid,1,start_snap,end_snap,0))) loop UTL_FILE.put_line(awr_file,awr_info.output); end loop; utl_file.fclose(awr_file); --实例2报告 awr_file := utl_file.fopen(‘DIR_AWRREPORT‘,lower(v_dbname)||‘_2_‘||start_time||‘_‘||end_time||‘.html‘, ‘a‘,32767); for awr_info in (select output from table(dbms_workload_repository.awr_report_html(v_dbid,2,start_snap,end_snap,0))) loop UTL_FILE.put_line(awr_file,awr_info.output); end loop; utl_file.fclose(awr_file); --全局报告 awr_file := utl_file.fopen(‘DIR_AWRREPORT‘,lower(v_dbname)||‘_global_‘||start_time||‘_‘||end_time||‘.html‘, ‘a‘,32767); for awr_info in (select output from table(dbms_workload_repository.awr_global_report_html(l_dbid => v_dbid,l_inst_num => ‘‘,l_bid => start_snap,l_eid => end_snap,l_options => 0))) loop UTL_FILE.put_line(awr_file,awr_info.output); end loop; utl_file.fclose(awr_file); end auto_awrreport;
(4)授予监控用户执行procedure权限(使用sys账户)
grant execute on mydba.auto_awrreport to mydba;
(5)创建job,每天晚上12:30执行(监控账户)
declare job1 number; begin sys.dbms_job.submit(job => job1, what => ‘auto_awrreport;‘, next_date => sysdate, interval => ‘TRUNC(SYSDATE+1) + 30/(24*60)‘, instance => 2 ); end;
时间: 2024-10-12 12:04:32