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Many organizations, businesses, and researchers are working to deal with large amounts of data
in an effective manner. Web applications by analytics , social networks and scientific
applications are some examples. Hadoop MapReduce is a prominent large data processing
engine. Early versions of Hadoop MapReduce had serious performance issues. This is quickly
becoming history. There are several approaches that may be utilized with Hadoop MapReduce
tasks to significantly improve performance. Such strategies are covered in this lesson. First, we
will introduce Hadoop MapReduce to the audience and explain why it is useful for huge data
processing. Then, we’ll look at various data management approaches, ranging from job efficiency
to physical data organizing techniques like data layouts and indexes. We will accommodate the
similarities and differences between of two throughout this. Parallel DBMS and Hadoop
MapReduce. In addition, we will highlight unsolved research topics and open issues.

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