19 Jun '12, 10pm

Migrating Your Application to a New Host

Before you plan the migration, it is very important to test out the application on the new environment. Some of the more painful migrations I have been involved with were a result of incomplete testing. Functionality should be tested but it is also important to put load on the new environment to ensure it can handle the expected traffic. A performance monitoring tool such as New Relic is crucial in planning your load testing strategy. In choosing endpoints to test, I like to pick a combination of controller actions that consume the most time and have the highest throughput. A performance monitoring tool can also help you decide how many concurrent users you should send at the application. Using a tool such as Apache benchmark or Blitz.io, you can ramp up to double or triple that number to figure out when or if your application reaches unacceptable performance levels.

Full article: http://www.engineyard.com/blog/2012/migrating-your-applic...

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