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Nodejs Application: How to handle a huge single tcp connection from client

Natarajan Santhosh
2 min readSep 15, 2023

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How to handle a single tcp connection sending massive amount to my application? best way to implement

a) Requesting sender to use multiple connection to load balance

b) Handling single large incoming connection

Handling a single TCP connection sending a massive amount of data to your Node.js application can be challenging. Here are two approaches to consider:

a) Requesting Sender to Use Multiple Connections for Load Balancing

1. **Rate Limiting and Monitoring:** Implement rate limiting on incoming connections to ensure that one connection does not overwhelm your server. You can use libraries like `express-rate-limit` for HTTP applications. Monitor incoming connections and their data transmission rates.

2. **Identify the Sender:** If possible, identify the sender or source of the massive data. If it’s a legitimate sender, you can request that they use multiple connections to distribute the load. Provide guidelines and possibly even an API for them to follow.

3. **Connection Pooling:** On the server side, implement connection pooling to efficiently manage multiple incoming connections. This allows your server to handle multiple requests simultaneously.

4. **Load Balancer:** Consider using a load balancer to distribute incoming connections across multiple instances of your application. This can help distribute…

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