In this chapter, we took a quick gallop around the broader Hadoop ecosystem. We looked at the upcoming changes in Hadoop, particularly HDFS high availability and YARN, why alternative Hadoop distributions exist and some of the more popular ones, and other Apache projects that provide capabilities, extensions, or Hadoop supporting tools.

We also looked at the alternative ways of writing or creating Hadoop jobs and sources of information and how to connect with other enthusiasts.

Now go have fun and build something amazing!