https://github.com/kartikmehta8/load-balancer-java
Spring Boot application implementing load balancing with Round Robin and IP Hash algorithms.
https://github.com/kartikmehta8/load-balancer-java
java load-balancer spring-boot
Last synced: about 2 months ago
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Spring Boot application implementing load balancing with Round Robin and IP Hash algorithms.
- Host: GitHub
- URL: https://github.com/kartikmehta8/load-balancer-java
- Owner: kartikmehta8
- Created: 2024-09-03T17:11:14.000Z (9 months ago)
- Default Branch: main
- Last Pushed: 2024-09-03T17:11:43.000Z (9 months ago)
- Last Synced: 2025-03-28T03:58:43.386Z (about 2 months ago)
- Topics: java, load-balancer, spring-boot
- Language: Java
- Homepage:
- Size: 45.9 KB
- Stars: 0
- Watchers: 1
- Forks: 0
- Open Issues: 0
-
Metadata Files:
- Readme: README.md
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README
# Spring Boot Load Balancer
This project demonstrates the implementation of a basic load balancer in Java Spring Boot. The load balancer supports two types of load balancing algorithms: **Round Robin** and **IP Hash**. This application is designed to be scalable, fault-tolerant, and robust.
## Project Structure
The project is structured as follows:
```
src/
├── main/
│ ├── java/
│ │ └── com/
│ │ └── load/
│ │ └── balancer/
│ │ ├── BalancerApplication.java
│ │ ├── config/
│ │ │ ├── LoadBalancerConfig.java
│ │ ├── service/
│ │ │ ├── LoadBalancerService.java
│ │ │ ├── RoundRobinLoadBalancer.java
│ │ │ ├── IPHashLoadBalancer.java
│ └── resources/
│ └── application.yml
└── test/
└── java/
└── com/
└── load/
└── balancer/
└── BalancerApplicationTests.java
```
## Code Explanation
### 1. BalancerApplication.java
This is the main entry point for the Spring Boot application.
- `@SpringBootApplication`: Marks the main class of the Spring Boot application, enabling auto-configuration and component scanning.
- `SpringApplication.run(BalancerApplication.class, args);`: Launches the Spring Boot application.
### 2. LoadBalancerConfig.java
This configuration class sets up the load balancing strategies.
- `@Configuration`: Indicates that the class can be used by the Spring IoC container as a source of bean definitions.
- `@Bean`: Marks methods that produce beans to be managed by Spring.
### 3. LoadBalancerService.java
This interface defines the contract for different load balancing strategies.
- `getServer(List servers)`: Method signature for selecting a server from a list.
### 4. RoundRobinLoadBalancer.java
Implements the Round Robin load balancing algorithm.
- Uses `AtomicInteger` to manage the current position in the server list.
### 5. IPHashLoadBalancer.java
Implements the IP Hash load balancing algorithm.
- Hashes the client's IP address to determine the server index.
### 6. application.yml
Contains the configuration for the Spring Boot application.
- `server.port`: Configures the server to run on port 8080.
- `spring.cloud.loadbalancer.instances`: Defines the backend instances for load balancing.
## Running the Application
### Steps to Run
1. **Build the Project**:
```bash
./gradlew clean build
```
2. **Run the Application**:
```bash
./gradlew bootRun
```