Hadoop clusters

So far, we have seen how to create a single Hadoop cluster using Ambari. But, is there ever a requirement for multiple Hadoop clusters?

The answer depends on the business requirements. There are trade-offs for both single versus multiple Hadoop clusters.

Before we jump into the advantages and disadvantages of both of these, let's see in what scenarios we might use either.

A single cluster for the entire business

This is the most straightforward approach and every business starts with one cluster, at least. As the diversity of the business increases, organizations tend to choose one cluster per department, or business unit.

The following are some of the advantages:

• Ease of operability: Since there is only...