MongoDB Best Practices Engine Yard Blog
blog.engineyard.com/2011/mongodb-best-practices
From the page
Saved with the link. Notes from 2007 to 2016 are mostly the page's own words, so this is probably an excerpt.
As we focus more on MongoDB, we have assisted several customers with custom MongoDB environments. During this process we discovered a variety of potentially problematic settings. So, we wanted to take this opportunity to share Engine Yards best practices for MongoDB.