This document provides an overview of basic Oracle WebLogic Server concepts such as domains, servers, clusters, and node managers. It describes how a domain contains servers and clusters, and how there is one administrative server that controls start/stop of managed servers. The administrative server manages deployment and resources, while managed servers are independent instances that synchronize configuration with the administrative server. A node manager is used to start/stop managed servers on physical machines. Clusters provide scalability through load balancing and high availability through failover. The document also notes WebLogic compatibility with Java EE specifications like EJB and JPA.

1. Oracle WebLogic
Server
Configuration & Administration
from ADF and Java EE Development Perspective

2. Basic Concepts
•
Domains
•
Server / Admin Server
•
Managed Server
•
Cluster
•
Node Manager
•
Machine

3. WebLogic Topology Diagram

4. Domain
•
Logical grouping of WebLogic Instances
•
Consists of
•
Server
•
Cluster

5. Server
•
Server is where we :
•
Deploy Enterprise Applications or Web
Applications.
•
Create JDBC Resources.
•
Create JMS Resources.

6. Types of Server
•
Administration Sever
•
Managed Server

7. What is Admin Server
•
Only ONE per domain.
•
Controls start and stop of other servers in the Domain.
•
Manages the creation of JDBC, JMS and other
resources.
•
Manages the deployment to servers in the domain.
•
In development we use Admin Server for Deployment
and Testing. This is usually done via the Integrated
WebLogic instance installed within JDeveloper.

8. What is a Managed Server
•
Managed Server is an instance of WebLogic Server
Managed by an Admin Server.
•
Managed Servers in a Domain are Independent
of each other, in every aspect.
•
Applications Deployed in a Managed Server do not
share any resources, including JDBC and JMS
Connections and Connection Factories.

9. Admin & Managed Server
•
On Startup, the Managed Server synchronizes the
configuration with
•
Configuration changes are send over to the
Managed Server from the Admin Server.

10. WebLogic
Managed
Server

11. WebLogic Topology

12. Node Manager
•
Process to Start/Stop Managed Server instance on
a Physical Machine.
•
Connect to Admin Server and starts/stops
WebLogic instance based
•
Independent of Domain

13. WebLogic Node Manager

14. Questions ?

15. WebLogic Cluster

16. Benefits of WebLogic Cluster
•
Scalability
•
•
Even distribution of jobs
•
•
Load Balance
Multiple copies of an object that can do a particular job must be
available
High-Availability
•
Failover
•
When a object processing a job becomes unavailable, a copy of
the object elsewhere takes over and finishes the job

17. WebLogic Cluster

18. WebLogic & Java EE
Compatibility

19. •
WebLogic 11g - JEE 5 Certified
•
WebLogic 12c - JEE 6 Certified
•
Java EE 6
•
JSP 2.1, JSF 2.0
•
EJB 3.1, JPA 2.0
•
Context and Dependency Injection
•
Restful Web Services

20. The End
Questions ?