I've kept quiet for awhile for various political reasons, but I now feel a kind of social responsibility to deter people from banking their business on MongoDB.
Our team did serious load on MongoDB on a large (10s of millions of users, high profile company) userbase, expecting, from early good experiences, that the long-term scalability benefits touted by 10gen
| /* Simple Car game for a 16x2 LCD display | |
| You can use any Hitachi HD44780 compatible LCD. | |
| Wiring explained at http://www.arduino.cc/en/Tutorial/LiquidCrystal | |
| (I used theLCD Electronic Brick on bus 1: | |
| rs on pin 2, rw on pin 3, enable on pin 4, | |
| data on pins 5,6,7,8) | |
| There's also a "steering wheel" potentiometer on analog input 1, | |
| and a Piezo speaker on pin 9 (PWM). | |
| Enjoy, |
| // Load the TCP Library | |
| net = require('net'); | |
| // Keep track of the chat clients | |
| var clients = []; | |
| // Start a TCP Server | |
| net.createServer(function (socket) { | |
| // Identify this client |
| echo 'export PATH=$HOME/local/bin:$PATH' >> ~/.bashrc | |
| . ~/.bashrc | |
| mkdir ~/local | |
| mkdir ~/node-latest-install | |
| cd ~/node-latest-install | |
| curl http://nodejs.org/dist/node-latest.tar.gz | tar xz --strip-components=1 | |
| ./configure --prefix=~/local | |
| make install # ok, fine, this step probably takes more than 30 seconds... | |
| curl https://www.npmjs.org/install.sh | sh |