10gocm-)session5-)数据库管理实验-)GC资源管理器资源消耗组演示
《GC资源管理器》 官方文档：administrator’s Guide-24 Using the Database Resource Manager 使用率：在实际生产环境中使用的比较少 作用：限制数据库资源的使用，CPU 内存 undo表空间 IO session 场合：当有多个应用使用一个数据库并且资源紧张时可用“资
《GC资源管理器》官方文档：administrator’s Guide->24 Using the Database Resource Manager
使用率：在实际生产环境中使用的比较少
作用：限制数据库资源的使用，CPU 内存 undo表空间 IO session
场合：当有多个应用使用一个数据库并且资源紧张时可用“资源管理器”调节
实现：可用GC完成也可用EM完成，还可以使用程序包完成
UI方式：简单，快捷，不容易出错
commend方式：设置复杂，命令很长，失败率高，DBMS_RESOURCE_MANAGER_PRIVS包处理
要求：
1.定义2个资源消耗组（OLTP事务处理资源消耗组和DSS数据仓库资源消耗组）
2.创建一个日程计划schedule
3.对于OLTP资源消耗组，我们最多不能有超过50个活动会话数，如果超过了50个活动会话那么就应该中止120秒后再请求
4.对于DSS资源消耗组，我们最多不能超过10个活动会话数，如果超过了10个活动会话那么就应该中止300秒后再请求
5.设置OLTP DSS OTHER_GROUPS 3个组CPU命中率分别为 50% 30% 20%
6.DSS 资源消耗组最大并行度为20
7.对OLTP会话查询一条DML语句的时间不能超过100秒
8.指定实例默认计划“schedule日程计划”激活
实验
声明：OLTP 事务处理资源消耗组
DSS 数据仓库资源消耗组
OTHER_GROUPS 其他资源消耗组
不同资源消耗组策略不同
登录GC 输入sysman 密码oracle1216
ocm01->Administration->consumer group-> 输入sys密码sys登陆
Create->OLTP 资源消耗组，点击Add添加ocm01用户将复选框选中，点击OK即可
Create->DSS 资源消耗组，点击Add添加ocm0102用户将复选框选中，点击OK即可
Database Instance: ocmdb > Object Type：Resource Plan->create->起一个计划名字schedule_plan
点击Modify添加Consumer Groups （OLTP和DSS）
LEO1->Administration->Plans 创建日程计划
Session Pool 10 300
50 120
在General选项中level 30 50 20
Parallelism选项中设置DSS并行度20
在Idle Time选项中设置“Max Idle Time”设置限制OLTP会话查询一条DML语句的时间不能超过100秒
General中选中“activate this plan”，应用激活即可，点击OK创建完成
总结自ocm实验选讲
【登录gc】
【点击targets】
【点击Databases->ocmdb】
【点击administration->Resource Manager->Consumer Groups】
【输入SYS用户名密码】
【点击Create添加资源用户组】
【添加DSS,和OLTP资源用户组】
【为资源用户组添加用户】
【打勾之后点击Select】
【点击OK】喎?http://www.2cto.com/kf/ware/vc/" target="_blank" class="keylink">vcD4KPHA+PGltZyBzcmM9"http://www.2cto.com/uploadfile/Collfiles/20140603/2014060310081570.jpg" alt="\">
【点击Resource Manager->Plans添加计划 】
【点击Create添加计划】
【添加计划】
--==
无截图
plan:SCHEDULE_PLAN
description:SCHEDULE_PLAN
第二个选项打勾
--==
【为计划选择资源用户组】
【设置OLTP DSS OTHER_GROUPS 3个组CPU命中率分别为 50% 30% 20%】
【点击编辑】
【DSS 资源消耗组最大并行度为20】
【对OLTP会话查询一条DML语句的时间不能超过100秒】
【点击General->Activate this plan激活计划】
【点击apply】
【完成 】
Hot AI Tools
Undresser.AI Undress
AI-powered app for creating realistic nude photos
AI Clothes Remover
Online AI tool for removing clothes from photos.
Undress AI Tool
Undress images for free
Clothoff.io
AI clothes remover
AI Hentai Generator
Generate AI Hentai for free.
Hot Article
Hot Tools
Notepad++7.3.1
Easy-to-use and free code editor
SublimeText3 Chinese version
Chinese version, very easy to use
Zend Studio 13.0.1
Powerful PHP integrated development environment
Dreamweaver CS6
Visual web development tools
SublimeText3 Mac version
God-level code editing software (SublimeText3)
Hot Topics
How does Go language implement the addition, deletion, modification and query operations of the database?
Mar 27, 2024 pm 09:39 PM
Go language is an efficient, concise and easy-to-learn programming language. It is favored by developers because of its advantages in concurrent programming and network programming. In actual development, database operations are an indispensable part. This article will introduce how to use Go language to implement database addition, deletion, modification and query operations. In Go language, we usually use third-party libraries to operate databases, such as commonly used sql packages, gorm, etc. Here we take the sql package as an example to introduce how to implement the addition, deletion, modification and query operations of the database. Assume we are using a MySQL database.
Detailed tutorial on establishing a database connection using MySQLi in PHP
Jun 04, 2024 pm 01:42 PM
How to use MySQLi to establish a database connection in PHP: Include MySQLi extension (require_once) Create connection function (functionconnect_to_db) Call connection function ($conn=connect_to_db()) Execute query ($result=$conn->query()) Close connection ( $conn->close())
How does Hibernate implement polymorphic mapping?
Apr 17, 2024 pm 12:09 PM
Hibernate polymorphic mapping can map inherited classes to the database and provides the following mapping types: joined-subclass: Create a separate table for the subclass, including all columns of the parent class. table-per-class: Create a separate table for subclasses, containing only subclass-specific columns. union-subclass: similar to joined-subclass, but the parent class table unions all subclass columns.
iOS 18 adds a new 'Recovered' album function to retrieve lost or damaged photos
Jul 18, 2024 am 05:48 AM
Apple's latest releases of iOS18, iPadOS18 and macOS Sequoia systems have added an important feature to the Photos application, designed to help users easily recover photos and videos lost or damaged due to various reasons. The new feature introduces an album called "Recovered" in the Tools section of the Photos app that will automatically appear when a user has pictures or videos on their device that are not part of their photo library. The emergence of the "Recovered" album provides a solution for photos and videos lost due to database corruption, the camera application not saving to the photo library correctly, or a third-party application managing the photo library. Users only need a few simple steps
An in-depth analysis of how HTML reads the database
Apr 09, 2024 pm 12:36 PM
HTML cannot read the database directly, but it can be achieved through JavaScript and AJAX. The steps include establishing a database connection, sending a query, processing the response, and updating the page. This article provides a practical example of using JavaScript, AJAX and PHP to read data from a MySQL database, showing how to dynamically display query results in an HTML page. This example uses XMLHttpRequest to establish a database connection, send a query and process the response, thereby filling data into page elements and realizing the function of HTML reading the database.
Analysis of the basic principles of MySQL database management system
Mar 25, 2024 pm 12:42 PM
Analysis of the basic principles of the MySQL database management system MySQL is a commonly used relational database management system that uses structured query language (SQL) for data storage and management. This article will introduce the basic principles of the MySQL database management system, including database creation, data table design, data addition, deletion, modification, and other operations, and provide specific code examples. 1. Database Creation In MySQL, you first need to create a database instance to store data. The following code can create a file named "my
Tips and practices for handling Chinese garbled characters in databases with PHP
Mar 27, 2024 pm 05:21 PM
PHP is a back-end programming language widely used in website development. It has powerful database operation functions and is often used to interact with databases such as MySQL. However, due to the complexity of Chinese character encoding, problems often arise when dealing with Chinese garbled characters in the database. This article will introduce the skills and practices of PHP in handling Chinese garbled characters in databases, including common causes of garbled characters, solutions and specific code examples. Common reasons for garbled characters are incorrect database character set settings: the correct character set needs to be selected when creating the database, such as utf8 or u
How does Go WebSocket integrate with databases?
Jun 05, 2024 pm 03:18 PM
How to integrate GoWebSocket with a database: Set up a database connection: Use the database/sql package to connect to the database. Store WebSocket messages to the database: Use the INSERT statement to insert the message into the database. Retrieve WebSocket messages from the database: Use the SELECT statement to retrieve messages from the database.
