Load Balancer in Go

This project demonstrates the implementation of a simple load balancer in Go, capable of distributing HTTP requests across multiple backend servers using various algorithms such as round-robin, least-connections, and IP-hash.

Table of Contents

• Setup and Installation
• Usage
• Load Balancing Algorithms
• Learning Outcomes

Setup and Installation

Prerequisites

• Go 1.18+ installed on your machine
• Git (for cloning the repository)

Steps

1. Clone the repository:

   git clone https://github.com/nareshNishad/loadbalancer.git
   cd loadbalancer

2. Build and run the project::

   go run main.go <algorithm>
   

   Replace with one of the available algorithms: round-robin, least-connections, ip-hash.

Usage

1. Starting the Load Balancer The load balancer will start on http://localhost:8080 and will distribute incoming HTTP requests to the backend servers running on ports 8081, 8082, and 8083.

2. Sending Requests You can send requests to the load balancer using a web browser, curl, or Postman:

   ''' curl http://localhost:8080 ''' This request will be routed to one of the backend servers based on the chosen algorithm.

Load Balancing Algorithms

1. Round-Robin Distributes requests evenly across all servers in a circular order.
2. Least-Connections Directs requests to the server with the least number of active connections.
3. IP-Hash Routes requests based on the client's IP address, ensuring that the same IP always hits the same backend server.