What is Zookeeper? What is the purpose of Zookeeper in Hadoop Ecosystem?

Question

I am new to Hadoop. I have some idea about the other tools present in Hadoop Ecosystem but I don't understand the purpose of using Zookeeper with Hadoop.

Can anyone tell me why do we use Zookeeper with Hadoop?

Is it required for some kind of data loading??

Thanks in advance!

Answer 1

Apache ZooKeeper is a software project of the Apache Software Foundation. It is an open-source technology that maintains configuration information and provides synchronized as well as group services that are deployed on the Hadoop cluster to administer the infrastructure.

ZooKeeper framework was first built at Yahoo! for easier accessing of applications but, later on, ZooKeeper was used for organizing services used by distributed frameworks like Hadoop, HBase, etc., and Apache ZooKeeper became a standard. It was designed to be a vigorous service that enabled application developers to focus mainly on their application logic rather than coordination.

You can learn more about ZooKeeper from this blog.

Hope this answer helps you!