What is the difference between single node & pseudo-distributed mode in Hadoop?

Question

I\'d like to know what is difference from the configuration point of view as well as theoretical point of view?

Do these two modes use different port numbers? or any oth

Answer 1

A single node setup is one where you have (presumably) one datanode and one tasktracker on a single machine.

A pseudo-distributed setup is where you have multiple datanodes and (presumably) tasktrackers on a single machine. So you have multiple instances of a datanode service running on a single machine to emulate a multi-node cluster.