O'Reilly logo

Hadoop 2.x Administration Cookbook by Gurmukh Singh

Stay ahead with the world's most comprehensive technology and business learning platform.

With Safari, you learn the way you learn best. Get unlimited access to videos, live online training, learning paths, books, tutorials, and more.

Start Free Trial

No credit card required

Hadoop streaming

In this recipe, we will look at how we can execute jobs on an Hadoop cluster using scripts written in Bash or Python. It is not mandatory to use only Java for programming MapReduce code; any language can be used by evoking the Hadoop streaming utility. Do not confuse this with real-time streaming, which is different from what we will be discussing here.

Getting ready

To step through the recipes in this chapter, make sure you have a running cluster with HDFS and YARN setup correctly as discussed in the previous chapters. This can be a single node cluster or a multinode cluster, as long as the cluster is configured correctly.

It is not necessary to know Java to run MapReduce programs on Hadoop. Users can carry forward their existing ...

With Safari, you learn the way you learn best. Get unlimited access to videos, live online training, learning paths, books, interactive tutorials, and more.

Start Free Trial

No credit card required