Summary
It is time to summarize the learning from this chapter and let you know what's to come in the next chapter. In this chapter, you learnt about the MapReduce v1 framework and its shortcomings. The chapter also covered an introduction to YARN, its components, architecture, and different projects powered by YARN. It also explained how YARN solves big data needs. In the next chapter, you will create single as well as multiple node Hadoop-YARN clusters and begin with your first step to YARN.
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