How is YARN an improvement over the MapReduce v1 paradigm?

Question: How is YARN an improvement over the MapReduce v1 paradigm?

  1. It’s completely open source
  2. It splits the JobTracker into two processes: ResourceManager and ApplicationManager
  3. It reduces multi-tenancy to improve performance
  4. It splits the TaskTracker into two processes: ResourceManager and ApplicationManager

Correct Answer: 2

MapReduce and YARN

Apache Hadoop is one of the most popular tools for big data processing. It has been successfully deployed in production by many companies for several years. Though Hadoop is considered a reliable, scalable, and cost-effective solution, it is constantly being improved by a large community of developers.

As a result, the 2.0 version offers several revolutionary features, including Yet Another Resource Negotiator (YARN), HDFS Federation, and high availability, which make the Hadoop cluster much more efficient, powerful, and reliable.”

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