An extensive post about Hadoop best practices and anti-patterns from Yahoo!:
This blog post represents compendium of best practices for applications running on Apache Hadoop. In fact, we introduce the notion of aGrid Pattern which, similar to a Design Pattern, represents a general reusable solution for applications running on the Grid.
This blog post enumerates characteristics of well behaved applications and provides guidance on appropriate uses of various features and capabilities of the Hadoop framework.
Original title and link: Hadoop Best Practices and Anti-Patterns (NoSQL databases © myNoSQL)