Oozie concepts
Before we move further, let's look at a few basic concepts of Oozie. In each chapter, we will take some time to learn some new concepts of Oozie besides looking at working examples.
Workflows
Workflow tells Oozie what to do. They are the DAG (https://en.wikipedia.org/wiki/Directed_acyclic_graph) representation of actions (tasks). It is a collection of actions arranged in required dependency graph. As a part of Workflow's definition, we write some actions and call them in a certain order.
These are of various types for tasks that we can do as a part of the Workflow, for example, Fs (Hadoop filesystem) action, Pig action, Hive action, MapReduce action, Spark action, and so on. We will discuss Fs action in this chapter.
Coordinator
Coordinator ...
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