Get started with the basics of big data and Hadoop clusters and how to use Yarn, MapReduce, and HDFS in Hadoop clusters.

Become a Big Data Professional

This module offers a one-of-a-kind rich and interactive experience to learn the fundamentals and basics of big Data. Throughout this module, we will have plenty of opportunities to get our hands-on experience with functioning Hadoop clusters.

We will start off by learning about the rise of big data as well as the different types of data like structured, unstructured, and semi-structured data. We will then dive into the fundamentals of big data such as YARN (yet another resource manager), MapReduce, and HDFS (Hadoop Distributed File System). By the end of this module, we will have the foundations in place to start working with big data.

Introduction to Big Data and Hadoop

## Zookeeper in Practice

So far, we discussed the theory behind Zookeeper and saw a Java example with Zookeeper's programmatic API. In this lesson, we'll exercise different commands offered by the __zkCli.sh__ utility that come with the Zookeeper download. We fire up the Zookeeper server and then invoke the command line client to connect to the server. The various commands are listed in the widget below with an explanation for each. You can connect to the terminal below and execute the commands to see their outcome.

# Zookeeper in Practice

So far, we discussed the theory behind Zookeeper and saw a Java example with Zookeeper's programmatic API. In this lesson, we'll exercise different commands offered by the __zkCli.sh__ utility that come with the Zookeeper download. We fire up the Zookeeper server and then invoke the command line client to connect to the server. The various commands are listed in the widget below with an explanation for each. You can connect to the terminal below and execute the commands to see their outcome.

In this lesson we discuss the command line tool zkCli.sh that can be used to connect and interact with the Zookeeper server.

Hadoop

Yarn

Map Reduce

HDFS

Input & Output Formats

Misc

Quiz

Reference: Replication

Reference: Partitioning

Conclusion

Zookeeper: Practical

Zookeeper in Practice