Oracle Resource Manager Training PPT

1. Oracle Resource Manager Kamus@ACOUG

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

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

4. Resource Management USERS DBA_USERS. INITIAL_RSRC_CONSUMER_GROUP

5. Simple Plan Example

6. Sub Plan Example

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

8. Resource Allocation Methods DBA_RSRC_PLAN_DIRECTIVES

9. 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.

10. How to Manage Use DBMS_RESOURCE_MANAGER Use EM GUI

11. Resource Manager in EM Plans: Plan and Plan Directives

12. Resource Manager by CLI

13. 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; /

14. Create Complex Plan

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

16. Complex Plan

17. 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; /

18. 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';

19. Switch Consumer Group

20. 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_*

21. Oracle Schedule Kamus@ACOUG

22. Automated Maintenance Tasks Scheduler Windows DBMS_SCHEDULER.CREATE_WINDOW Resource Plan DEFAULT_MAINTENANCE_PLAN