What is yarn in big data hadoop?

Question

I want know what is is the meaning and use of the yarn in the big data and hadoop.

Khaja Moizuddin · Answer

Hadoop YARN is a specific component of the open source Hadoop platform for big data analytics, licensed by the non-profit Apache software foundation.The Apache software foundation, the license holder for Hadoop, describes Hadoop YARN as 'next-generation MapReduce' or 'MapReduce 2.0.' As mentioned in https://www.techopedia.com/definition/30154/hadoop-yarn

Sagar Lad · Answer

The fundamental idea of YARN is to split up the functionalities of resource management and job scheduling/monitoring into separate daemons. The idea is to have a global ResourceManager ( RM ) and per-application ApplicationMaster ( AM ). An application is either a single job or a DAG of jobs. The ResourceManager and the NodeManager form the data-computation framework. The ResourceManager is the ultimate authority that arbitrates resources among all the applications in the system. The NodeManager is the per-machine framework agent who is responsible for containers, monitoring their resource usage (cpu, memory, disk, network) and reporting the same to the ResourceManager/Scheduler. The per-application ApplicationMaster is, in effect, a framework specific library and is tasked with negotiating resources from the ResourceManager and working with the NodeManager(s) to execute and monitor the tasks.

Kapil Singh Kumawat · Answer

The fundamental idea of YARN is to split up the functionalities of resource management and job scheduling/monitoring into separate daemons. The idea is to have a global ResourceManager (RM) and per-application ApplicationMaster (AM). An application is either a single job or a DAG of jobs. check this link for more information https://hadoop.apache.org/docs/current/hadoop-yarn/hadoop-yarn-site/YARN.html

What is yarn in big data hadoop?

Answers (3)