J2EE Web Servers Load Balancing

J2EE Web Servers Load Balancing

Server Architecture Diagram example showing load balancing for J2EE web servers, distributing traffic across application servers.

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J2EE Web Servers Load Balancing

This server architecture diagram example illustrates a load balancing setup for J2EE web servers. The architecture employs a jetNEXUS ALB-X load balancer to distribute HTTP requests from client devices across multiple J2EE application servers running Websphere2. The objective is to ensure high availability, balanced workloads, and efficient data flow between the client, application servers, and database. This setup is typical for enterprise applications that require scalable, distributed environments to handle high traffic and maintain stable performance.


This is a server architecture diagram focused on showing the structural components and data flow in a load-balanced J2EE environment. Unlike deployment diagrams, which depict the exact placement of software on hardware, architecture diagrams emphasize the relationships between components, detailing how systems are configured to achieve specific goals (like load balancing and high availability). This type of diagram is essential for network and system architects who design and maintain resilient web architectures.


Diagram Design and Components


In this architecture, client requests originate from a PC with a web browser, connecting via HTTP to the jetNEXUS ALB-X load balancer. The load balancer distributes these HTTP requests to multiple J2EE application servers on Sun Fire X4150 machines running Websphere2, ensuring even traffic distribution and preventing overload. These application servers, hosted on SUSE Linux Ent 10, process the requests and interact with an Oracle 11g RAC database on a Sun SPARC Server via TCP/IP. The Oracle database setup supports high availability, with load balancing extending across both application and data layers to maintain robust performance.


Key Principles for Designing Server Architecture Diagrams


When creating a server architecture diagram for load-balanced environments, consider these principles:

  1. Clear Role Definition: Identify each component’s role (client, load balancer, application server, database server) to make the flow of data and responsibilities clear.
  2. Scalability: Indicate the potential for scaling, such as the load balancer’s capability to handle multiple application servers (2..4) to accommodate traffic increases.
  3. Protocol Labeling: Label communication protocols like HTTP and TCP/IP between components, helping architects understand the data flow and potential points for securing or optimizing connections.
  4. Logical Layout: Arrange components logically, positioning the load balancer between client and server layers to emphasize its function in distributing requests.


Design your Architecture Diagrams using MockFlow


This server architecture diagram example provides a comprehensive view of a load-balanced J2EE web application setup. By using MockFlow’s flowchart maker, you can customize this template to add specific details, such as additional servers, network security measures, or database replication. Use this template as a base to design scalable and resilient server architectures for your applications.

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