如何禁用Oracle AWR自动采样功能

Posted 2023-03-13

参考技术A 在Oracle 10g中，AWR采样缺省部署于数据库中，那么如何禁用这个功能呢？
在Metalink Note： 436386.1中，Oracle提供了一个增强脚本，称为： dbmsnoawr.plb 通过这个脚本可以启用和禁用AWR采样功能，从原则上，为未购买该部分功能授权的用户提供了一个退出途径。
在Oracle Database 11g中，可以通过参数CONTROL_MANAGEMENT_PACK_ACCESS 控制组件包的访问。
该脚本的内容如下：
Rem Rem dbmsnoawr.sql Rem Rem Copyright (c) 2006, Oracle. All rights reserved. Rem Rem NAME Rem dbmsnoawr.sql - Declaration of the DBMS_AWR package Rem Rem DESCRIPTION Rem Utilities for disabling and getting status of AWR Rem Rem NOTES Rem Rem MODIFIED (MM/DD/YY) Rem gwood 04/13/07 - created Rem create or replace package dbms_awr as -- PACKAGE dbms_awr -- This package allows users to disable AWR functionality in a Oracle 10g+ database. -- The use of this package is not resticted by licencing of the Diagnostic Pack. -- Additionally this package contains two functions that can be used to determine -- if AWR is currently enabled. -- -- PROCEDURE dbms_awr.disable_awr -- PURPOSE: turns off collections into Automatic Workload Repository -- PARAMETERS: none procedure disable_awr; -- PROCEDURE dbms_awr.enable_awr -- PURPOSE: turns on collections into Automatic Workload Repository. The capture interval -- is set to the default of 60 minutes. -- PARAMETERS: none procedure enable_awr; -- FUNCTION dbms_awr.awr_enabled -- PURPOSE: Returns TRUE if Automatic Workload Repository is performing periodic capture. -- Returns FALSE if Automatic Workload Repository periodic capture is disabled. -- PARAMETERS: none function awr_enabled return boolean; -- FUNCTION dbms_awr.awr_status -- PURPOSE: Returns 'ENABLED' if Automatic Workload Repository is performing periodic capture. -- Returns 'DISABLED' if Automatic Workload Repository periodic capture is disabled. -- PARAMETERS: none function awr_status return varchar2; end dbms_awr; / create or replace package body dbms_awr wrapped a000000 b2 abcd abcd abcd abcd abcd abcd abcd abcd abcd abcd abcd abcd abcd abcd abcd b 27b 1de XeDco+SpVfG9KEZ2ikXc00yhW88wg2P3AK7bfHRAWE7VX0b1S25KKJCp5VrehjNR9oaXoWT1 GGfYVnyl/lLyux308Fmhfp1y9pjrQyux50RY8xmHmiSG2bFbFs2Upn6MLYcfsqsW+joOTKYe 4TyFpXVqzVWS+Tjt8bcmSiai64IVcdOB3Q7Y6kQ8PGwqXqAiy9sFQKD0X6RC/ePGAQzUKwvS 3L8/hKgjdK9Fgw8bb7v1HTq22OJlAv+R/DYCSK57rPmAkyx/XLuXcPo3hcYs8fvUUAO33szW gy5zNau9U7xiyAOExBz9Vh0U7EaMRl6rLr6UXpk/0tk3BW0W/GVo3XfdSzUpGN5aKa1xF2Yh trcMV3KuK/FfIpy0bNDxSQ3LFuOsB8i5xzhj/dCqMxT4dO2awc0hnP3XeLhxWDvcEuqdkR9O u+Z6US/LtRISXt2I8zFq6/aDSuOXTor9KQ1jYA== /
该脚本包含两个过程和两个函数，通过disable_awr / enable_awr 就可以禁用或者启用AWR采样功能：
SQL> @D:dbmsnoawr.plb
Package created.
Package body created.
SQL> desc dbms_awr
FUNCTION AWR_ENABLED RETURNS BOOLEAN
FUNCTION AWR_STATUS RETURNS VARCHAR2
PROCEDURE DISABLE_AWR
PROCEDURE ENABLE_AWR
SQL> exec dbms_awr.disable_awr
PL/SQL procedure successfully completed.
SQL> select dbms_awr.awr_status from dual;
AWR_STATUS
------------------------------------------------------- DISABLED
SQL> exec dbms_awr.enable_awr
PL/SQL procedure successfully completed.
SQL> select dbms_awr.awr_status from dual;
AWR_STATUS
------------------------------------------------------- ENABLED
这个脚本本质上非常简单，就是通过将快照采样价格设置为0和60来控制禁用和启用的。
PROCEDURE DISABLE_AWR
IS
BEGIN DBMS_WORKLOAD_REPOSITORY.MODIFY_SNAPSHOT_SETTINGS(INTERVAL => 0);
END;
PROCEDURE ENABLE_AWR IS
BEGIN DBMS_WORKLOAD_REPOSITORY.MODIFY_SNAPSHOT_SETTINGS(INTERVAL => 60);
END;
记录供参考。本回答被提问者采纳