Implementing a Pig action job using Oozie

In this recipe, we are going to take a look at how to use a Pig action in order to automate the Pigscripts executions.

Getting ready

To perform this recipe, you should have a running Hadoop cluster as well as the latest version of Oozie and Pig installed on it.

How to do it...

A Oozie job execution consists of two important things, workflow.xml and a properties file. The workflow.xml file is where we need to specify the flow of execution. The following is an example of workflow.xml, which uses the Pig action:

<workflow-app xmlns="uri:oozie:workflow:0.2" name="pig-wf">
<start to="pig-node"/>
<action name="pig-node">
<pig>
<job-tracker>${jobTracker}</job-tracker>
<name-node>${nameNode}</name-node>
<prepare>
<delete path="${nameNode}/user/${wf:user()}/${examplesRoot}/output-data/pig"/>
</prepare>
<configuration>
<property>
<name>mapred.job.queue.name</name>
<value...