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R-Balancer

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R-Balancer is a simple load balancer implementation using the Round-Robin algorithm. It distributes incoming client requests across multiple backend servers to balance the load. This script is designed for use in Python 3.x.

Features

  • Round-Robin Load Balancing: Distributes incoming requests evenly across a list of backend servers.
  • Multithreading: Handles multiple client connections simultaneously using threads.
  • Configurable: Allows customization of server addresses and ports via command-line arguments.

Requirements

  • Python 3.x
  • socket and threading modules (built-in Python libraries)

Installation

Clone the repository or download the script:

git clone <repository-url>
cd <repository-directory>

Usage

Run the script using the following command format:

python R-Balancer.py -s <host> -p <port> -l "<server1>:<port1>,<server2>:<port2>,..."

Arguments

  • -s or --server: The IP address or hostname where the load balancer will listen for incoming connections.
  • -p or --port: The port on which the load balancer will listen.
  • -l or --list: A comma-separated list of backend servers in the format host:port.

Example

To start the load balancer on 0.0.0.0 port 8080 and distribute requests to backend servers 127.0.0.1:8081, 127.0.0.1:8082, and 127.0.0.1:8083:

python R-Balancer.py -s 0.0.0.0 -p 8080 -l "127.0.0.1:8081,127.0.0.1:8082,127.0.0.1:8083"

Or Using Config file

Create config file in same directory with name R-Balancer.conf.

Example config:

{
    "server": "0.0.0.0",
    "port": 80,
    "list_server": "192.168.1.3:80,192.168.1.4:8080,192.168.1.5:8000"
}

Script Overview

  • Initialization: RBalancer class is initialized with a list of backend servers.
  • Server List: The listServer method parses the backend server list from a string.
  • Client Handling: The handle_client method handles incoming client connections and forwards them to backend servers in a round-robin manner.
  • Data Forwarding: The forward_data method transfers data between client and server.
  • Starting: The start method binds the load balancer to the specified IP and port and begins listening for incoming connections.

License

This project is licensed under the MIT License. See the LICENSE file for details.