can some one please explain the role of node manager and app master in YARN.
from what I read, node manager is responsible of launching and tracking tasks in a node, and app master is responsible for launching tasks in a container and negotiating resource with the resource manager.
I'm not sure if these information are correct or not, please correct me if I'm wrong.
thank you in advance
Cloudera blog has multiple articles explaining this. refer the link below: https://blog.cloudera.com/blog/2015/09/untangling-apache-hadoop-yarn-part-1/