What are the different daemons in yarn

Question

Hi,

I am new in the field of Big data and Hadoop and was going through a study material where it was written that " There are different daemons in yarn", but they did not mentioned what are they? So can anyone put up an answer to explain this?

Answer 1

Hi,

The different Daemons in YARN are:-

Resources Manager:- Runs on a master daemon and manages the resource allocation in the cluster.

Node Manager:- They run on the slave daemons and are responsible for the execution of a task on every single Data Node.

Application Master:- Manages the user job life cycle and resource needs of individual applications. It works along with the Node Manager and monitors the execution of tasks.