CHAPTER 14

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Using Apache Spark

Apache Spark is a data processing engine for large data sets. Apache Spark is much faster (up to 100 times faster in memory) than Apache Hadoop MapReduce. In cluster mode, Spark applications run as independent processes coordinated by the SparkContext object in the driver program, which is the main program. The SparkContext may connect to several types of cluster managers to allocate resources to Spark applications. The supported cluster managers include the Standalone cluster manager, Mesos and YARN. Apache Spark is designed to access data from varied data sources including the HDFS, Apache HBase and NoSQL databases ...

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