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 】
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