1.If you get the million users you’re hoping for, you’ll need to scale out your system. You can do this by spinning up a few more Amazon instances to run your Node processes. How do you distribute the...

1.If you get the million users you’re hoping for, you’ll need to scale out your system. You can do this by spinning up a few more Amazon instances to run your Node processes. How do you distribute the load? Visit http://wiki.nginx.org/HttpProxyModule to read up on the nginx

proxy module.
2.
The example code uses a simple random number to generate app and to-do item identifiers. In a production app you’ll have to use something more robust. Review Chapter 5 for clues!