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禁用Oracle 11gR2 DataGuard默认审计功能

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Release: 2016-06-07 17:25:44
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audit_trail string DB大家好!最近公司服务器system表空间越来越大,segments logical reads,segments physical reads 越来越高

NAME TYPE VALUE
--------------------------------- ----------- ------------------------------
audit_trail string DB大家好!最近公司服务器system表空间越来越大,segments logical reads,segments physical reads 越来越高,,awr报告里体现的对象是AUD$,很明显可以定位是开启审计功能导致。下面我来给大家介绍如何停止DataGuard架构的审计功能:

1.检查应用连接停止状态

SQL> select USERNAME,STATUS from v$session where username is not null;

USERNAME                      STATUS
------------------------------        --------------
SYS                                    ACTIVE

 

2.停止主库传输进程

alter system set LOG_ARCHIVE_DEST_STATE_2=defer scope=both;

 

3.停止备库实时应用

alter database recover managed standby database cancel;

 

4.查看当前审计状态

SQL> show parameter audit_trail;

NAME                              TYPE        VALUE
--------------------------------- ----------- ------------------------------
audit_trail                          string      DB

 

5.修改主库审计参数

alter system set audit_trail=none scope=spfile;

 

6.查询主库审计表数据量

SQL> select count(*) from SYS.AUD$;

  COUNT(*)
----------------
  21545536

 

7.停止主库数据库

shutdown immediate;

 

8.启动主库数据库

startup;

 

9.清理审计表数据

truncate table SYS.AUD$;

 

10.检查审计参数设置是否正确

SQL> show parameter audit_trail;

NAME                              TYPE        VALUE
------------------------------- ----------- ------------------------------
audit_trail                          string      NONE

 

11.查看备库审计参数

SQL> show parameter audit_trail;

NAME                              TYPE        VALUE
-------------------------------- ----------- ------------------------------
audit_trail                          string      OS

linux

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