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Apache Hadoop™ YARN: Moving beyond MapReduce and Batch Processing with Apache Hadoop™ 2 by Jeff Markham, Joseph Niemiec, Vinod Kumar Vavilapalli, Arun C. Murthy, Doug Eadline

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9. MapReduce with Apache Hadoop YARN

The introduction of Hadoop version 2 has changed much of how MapReduce applications run on a cluster. Unlike the monolithic MapReduce–Schedule in Hadoop Version 1, Hadoop YARN has generalized the cluster resources available to users. To keep compatibility with Hadoop version 1, the YARN team has written a MapReduce framework that works on top of YARN. The framework is highly compatible with Hadoop version 1, with only a small number of issues to consider. As with Hadoop version 1, Hadoop YARN comes with virtually the same MapReduce examples and benchmarks that help demonstrate how Hadoop YARN functions.

Running Hadoop YARN MapReduce Examples

Running the existing MapReduce examples is a straightforward process. ...

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