Oracle Resource Manager

Oracle Resource Manager
Kamus@ACOUG

About ACOUG
ACOUG: All China Oracle User Group
http://acoug.org

About Me
张乐奕 Kamus
http://www.dbform.com
Oracle -> 恩墨科技 (http://www.enmou.com)
Oracle & World of Warcraft

Resource Management
USERS
DBA_USERS.
INITIAL_RSRC_CONSUMER_GROUP

Simple Plan Example

Sub Plan Example

Consumer Group Mappings
Specific Value
Consumer Group A
SYS,SYSTEM …
Consumer Group B
Priorities
DEFAULT_CONSUMER_GROUP
Specific Value

Resource Allocation Methods
DBA_RSRC_PLAN_DIRECTIVES

Notes
The currently active resource plan does not enforce allocation limits until CPU usage is at 100%.
When limits are enforced, unused allocation by any consumer group can be used by other consumer groups
It is possible for a subplan or consumer group to have more than one parent.
No more than 31 resource consumer groups in any active plan
At most, a plan can have 31children
Plans and resource consumer groups cannot have the same name.

How to Manage
Use DBMS_RESOURCE_MANAGER
Use EM GUI

Resource Manager in EM
Plans: Plan and Plan Directives

Resource Manager by CLI

Create Simple Plan
BEGIN DBMS_RESOURCE_MANAGER.CREATE_SIMPLE_PLAN (
SIMPLE_PLAN => 'SIMPLE_PLAN1', CONSUMER_GROUP1 => 'MYGROUP1', GROUP1_PERCENT => 80,
CONSUMER_GROUP2 => 'MYGROUP2', GROUP2_PERCENT => 20);
END; /

Create Complex Plan

Complex Plan
via Oracle® Database Administrator's Guide
11g Release 2 (11.2)

Complex Plan

Privileges
BEGIN DBMS_RESOURCE_MANAGER_PRIVS.GRANT_SWITCH_CONSUMER_GROUP (
GRANTEE_NAME => 'KAMUS',
CONSUMER_GROUP => 'SYS_GROUP',
GRANT_OPTION => TRUE);
END;
/
BEGIN DBMS_RESOURCE_MANAGER_PRIVS.REVOKE_SWITCH_CONSUMER_GROUP (
REVOKEE_NAME => 'KAMUS',
CONSUMER_GROUP => 'SYS_GROUP');
END;
/

How to Enable/Disiable
Manually
By default the Resource Manager is not enabled
ALTER SYSTEM SET RESOURCE_MANAGER_PLAN = 'mydb_plan';
DBMS_RESOURCE_MANAGER.SWITCH_PLAN
By using Scheduler Windows
Enable: By Oracle Scheduler
Disable: ALTER SYSTEM SET RESOURCE_MANAGER_PLAN = 'FORCE:mydb_plan';

Switch Consumer Group

Views about RSRC
DBA_RSRC_CONSUMER_GROUP_PRIVS
DBA_RSRC_PLANS
V$RSRC_PLAN
V$RSRC_CONSUMER_GROUP
V$SESSION. RESOURCE_CONSUMER_GROUP
V$RSRC_SESSION_INFO
DBA_HIST_RSRC_*

Oracle Schedule
Kamus@ACOUG

Automated Maintenance Tasks
Scheduler Windows
DBMS_SCHEDULER.CREATE_WINDOW
Resource Plan
DEFAULT_MAINTENANCE_PLAN

http://www.dbform.com	590
http://cache.baidu.com	9
http://xianguo.com	7
http://www.freedba.net	5
http://translate.googleusercontent.com	4
http://static.slidesharecdn.com	3
http://www.zhuaxia.com	2
http://webcache.googleusercontent.com	1

Oracle Resource Manager

by Leyi Zhang on Aug 31, 2010

Accessibility

Categories

Tags

Upload Details

Usage Rights

8 Embeds 621

Statistics

Oracle Resource Manager — Presentation Transcript