Book Image

Mastering Node.js

By : Sandro Pasquali
Book Image

Mastering Node.js

By: Sandro Pasquali

Overview of this book

Node.js is a modern development stack focused on providing an easy way to build scalable network software. Backed by a growing number of large companies and a rapidly increasing developer base, Node is revolutionizing the way that software is being built today. Powered by Google's V8 engine and built out of C++ modules, this is a JavaScript environment for the enterprise.Mastering Node.js will take the reader deep into this exciting development environment. Beginning with a comprehensive breakdown of its innovative non-blocking evented design, Node's structure is explained in detail, laying out how its blazingly fast I/O performance simplifies the creation of fast servers, scalable architectures, and responsive web applications.Mastering Node.js takes you through a concise yet thorough tour of Node's innovative evented non-blocking design, showing you how to build professional applications with the help of detailed examples.Learn how to integrate your applications with Facebook and Twitter, Amazon and Google, creating social apps and programs reaching thousands of collaborators on the cloud. See how the Express and Path frameworks make the creation of professional web applications painless. Set up one, two, or an entire server cluster with just a few lines of code, ready to scale as soon as you're ready to launch. Move data seamlessly between databases and file systems, between clients, and across network protocols, using a beautifully designed, consistent, and predictable set of tools.Mastering Node.js contains all of the examples and explanations you'll need to build applications in a short amount of time and at a low cost, running on a scale and speed that would have been nearly impossible just a few years ago.
Table of Contents (20 chapters)
Mastering Node.js
About the Author
About the Reviewers

Chapter 5. Managing Many Simultaneous Client Connections


If everyone helps to hold up the sky, then one person does not become tired.

 --Tshi Proverb

Maintaining a high level of throughput while managing thousands of simultaneous client transactions in the unpredictable and "bursty" environment of networked software is one expectation developers have for their Node implementations. Given a history of failed and unpopular solutions, the problem of concurrency has even been assigned its own numeronym: "The C10K problem". How should network software confidently serving 10,000 simultaneous clients be designed?

The question of how to best build high concurrency systems has provoked much theory over the last several decades, with the debate mostly between two alternatives, threads and events:


Threading allows programmers to write straight-line code and rely on the operating system to overlap computation and I/O by transparently switching across threads. The alternative, events, allows programmers...