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Java Thread-per-Connection vs Thread-per-Request
- This article discusses the differences between the thread-per-connection and thread-per-request models in Java, focusing on managing client connections and processing requests.
- A connection is a persistent link between a client and a server, while a request is a communication unit asking the server to perform an action.
- In the thread-per-connection model, a new thread is created for each client connection to handle I/O operations, leading to simplicity but inefficiency with many idle connections.
- An example of this model is shown with a Java socket-based HTTP server creating a dedicated thread for each client connection.
- The thread-per-request model involves creating a new thread for each request, allowing better scalability and concurrency handling.
- An example is provided where each client message is processed in its thread using an ExecutorService with a cached thread pool.
- The article compares the performance and use cases of both models, highlighting their differences in thread count, overhead, suitability, throughput, and connection lifetime.
- Thread-per-request is recommended for high-throughput applications with many requests, while thread-per-connection is suitable for simpler scenarios with low to moderate traffic.
- Overall, understanding these models can help developers decide which approach to use based on their application's workload and scalability requirements.
- The article concludes by emphasizing the importance of selecting the right model for Java applications and provides the option to download the example source code.
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