1. Oracle 11g Architecture and Internals by Suresh Karnati
April 19, 2017
Oracle 11g Architecture and Internals by Suresh Karnati

2. Agenda Overview of OBIEE 11gR1 Key Features Basic Architecture
System and Java Components
Oracle Process Manager and Notification Server
Oracle Enterprise Manager Fusion Middleware Control
Weblogic Domain
Oracle instances
11g vs 10g
Q & A

3. Overview of OBIEE 11gR1
Derived from Siebel Analytics, second major Oracle release.
11gR1 new features focused on manageability and Middleware integration.

4. Key Features
Oracle Business Intelligence is now more integrated with the Oracle Fusion Middleware
Oracle WebLogic Server replaces Oracle Application Server and Oracle Containers for Java (OC4J)
Oracle Business Intelligence 11g Installer replaces the installer that was used in previous versions

5. Key Features..continued
Following administration command-line utilities available
Oracle WebLogic Server scripting tool (WLST) for managing the Oracle WebLogic Server domain
OPMN and the opmnctl commands for the Oracle Process Manager and Notification Server
A database repository must be created before installation of the components with the Repository Creation Utility (RCU) tool
Enhancements to the Oracle BI repository
Log centralization via the web log viewer
OBIEE is now deployed in a clustered configuration by default. Because of this, the default ODBC DSN for the Oracle BI Server points to the Cluster Controller by default, rather than to the Oracle BI Server.

6. Basic Architecture

7. System and Java Components
April 19, 2017
System and Java Components
OBIEE Components divided into System and Java Components.
System components are still C/C++ executable and are controlled by OPMN and managed by Fusion Middleware Control
Java Components are J2EE applications and are usually installed in the managed server and controlled by Fusion Middleware Control.

8. Oracle Process Manger and Notification Server
OPMN (Oracle Process Manager and Notification Server )
You may have first come across this in Oracle Application Server 10g, where it was used to start up the various Application Server components (OC4J_BI_Forms, OC4J_Portal etc).
Its since been adopted across the technology stack to start, stop and monitor processes across distributed servers, and it’s used in OBIEE 11g to do the same for the system components (BI Server, BI Presentation Server, BI Scheduler and BI Cluster Controller).
You can either access OPMN through the command line (opmnctl), or Oracle’s recommended approach is to use a graphical interface within Fusion Middleware Control.
OPMN is also used in the 11g stack to control Essbase, Discoverer and other BI components, so it’s a tool that’s worth learning

9. Oracle Enterprise Manager Fusion Middleware Control
Manage System Components (BI Server, BI Presentation Server etc)
Start, Stop and Restart all System Components and Managed Servers
Configure Preferences and Defaults
Scale out System Components
Performance Monitoring and Diagnostics

10. WebLogic Domain
Each OBIEE 11g Oracle BI Domain contains a single Weblogic Domain.
Contains one Admin Server and at the Start, One Managed Server
WebLogic Domain administered through Admin Console and WLST(WebLogic Scripting).
Managed Servers can be started manually or through Node Manager.

11. Oracle Instances Collection of system components on a single host.
April 19, 2017
Oracle Instances
Collection of system components on a single host.
Managed using OPMN.
Starts with one of each system component.
An Oracle BI Domain can contain multiple instances, one per host.

12. 11g vs 10g
OBIEE11g has had a major architectural overhaul adopting Fusion Middleware 11g technologies
Core servers stay the same, but new middleware “wrapper”. Main difference is wrapping components in WLS platform and EM management
Uses WebLogic Application Server for J2EE application hosting, security and integration
Major security enhancements and changes
Enterprise Manager used for systems management
Individual servers, components are still the same (BI Server, Presentation Server,BI Publisher J2EE application etc)
Some reworking has taken place in 11gR1 (unified logging, management of config files using EM etc)
Basic concepts, plus clustering (OBIEE), scheduling etc are the same as in 10g

13. 11g vs 10g..continued
OBIEE 11g still works in fundamentally the same way as OBIEE 10g.
Users queries via the Presentation Server
The Oracle BI Server converts these queries to physical SQL/MDX, via the Oracle BI Repository
Queries are passed to the underlying physical databases and OLAP cubes
Data returned to users in the form of dashboards and reports

14. Thanks for your attention!
April 19, 2017
Q & A
Thanks for your attention!
Sigmora Technologies
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