Different ports in a Hadoop cluster environment

Question

I am confused between the various ports at which various daemons / processes listens in a Hadoop cluster.

I see there are so many ports, which are:

1) 50070
2) 8088
3) 8042
4) 50075

Can anyone tell me what are the main port numbers which we should be aware of,
and what processes listens at those ports.

Answer 1

Below image will help you in understanding various ports used in a hadoop cluster and their purpose.

For more information go through this link: https://blog.cloudera.com/blog/2009/08/hadoop-default-ports-quick-reference/

Hope this will answer your question to some extent.