This blog post was published on Hortonworks.com before the merger with Cloudera. Some links, resources, or references may no longer be accurate. As previously described, YARN is essentially a system for managing distributed applications. It consists of a central ResourceManager, which arbitrates all available cluster resources, and a per-node NodeManager, which takes direction from the ResourceMan
![Apache Hadoop YARN – Concepts and Applications - Cloudera Blog](https://cdn-ak-scissors.b.st-hatena.com/image/square/fb4bdd855befc61da7c55c953fa4343686f62a12/height=288;version=1;width=512/https%3A%2F%2Fblog.cloudera.com%2Fwp-content%2Fuploads%2F2019%2F08%2Fyarnflow1.png)