A simple load balancer with cli implemented in Node.js and Express.
Demo: https://youtu.be/yqBR1M1jlPA?si=EcGiI7i7gxPPoxkp
This project is a basic implementation of a load balancer using NodeJS and ExpressJS. The load balancer distributes incoming requests across multiple servers to ensure efficient utilization of resources and improved system reliability.
- Distributes incoming requests across multiple servers.
- Health checks to monitor server status.
- Simple CLI configuration for setting up server details.
- Logging of requests and errors for monitoring.
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Clone the repository:
git clone https://github.com/your-username/load-balancer.git
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Install dependencies:
cd load-balancer npm install
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Configure the load balancer using the CLI:
start-lb
The CLI tool prompts the user for essential details, including:
- Number of servers
- Server URLs
- Health check endpoint
- Health check period
- This configuration ensures the load balancer has accurate information about available servers and their health.
- Send requests to the load balancer and observe the distributed load among servers.
The load balancer utilizes a round-robin algorithm to evenly distribute incoming requests among the available servers. This ensures each server gets an equal share of the load, preventing any single server from becoming a bottleneck.
Periodic health checks are performed on each server to verify its availability. If a server fails a health check, it is temporarily removed from the rotation, preventing the load balancer from directing requests to an unhealthy server.
The load balancer logs every incoming request and any encountered errors. This logging mechanism aids in monitoring and troubleshooting the system.
Contributions are welcome! Feel free to open issues or submit pull requests.
This project is licensed under the MIT. License. Feel free to customize this further based on your specific implementation details and preferences.
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