Code samples from my talk at OSCON 2014.
Check out slides from the talk here: http://www.slideshare.net/cacois/nodejs-patterns-for-discerning-developers
Also, check out my scale-fs module, built using the presented patterns (request batching/caching) for high-concurrency file I/O: https://www.npmjs.org/package/scale-fs
You can install it using NPM:
npm install scale-fs