Yet Another Resource Negotiator (YARN) is a resource management & job scheduling component in Hadoop distribution framework. It decouples the resource management task from data processing, enabling it to support various data processing tools such as Map Reduce & Spark resulting greater scalability & resource utilization.

Map Reduce is a data processing mechanism where parallel computation of large task is split into smaller sub-tasks and each sub-task is computed on separate nodes within a Hadoop cluster. Map reduce is I/O instensive activity

Installing & Configuring Steps

  • From Ambari UI select “Add Service“

From Ambari U In “Add Service Wizard” select “YARN + MapReduce2“

Assign services to cluster nodes

Assign Slaves & Clients

Customize service configuration

Review and deploy

Install the services

Review and complete installation

In Ambari UI, review the installed service

KNOWN ISSUE

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