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What is a good bigdata pre-processor to Apache Spark?

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Before the arrival of Apache Spark, Hadoop MapReduce was the most popular option for handling big datasets using parallel, distributed algorithms. MapReduce has a multi-step, sequential process for job execution
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Before the arrival of Apache Spark, Hadoop MapReduce was the most popular option for handling big datasets using parallel, distributed algorithms. MapReduce has a multi-step, sequential process for job execution
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Before the arrival of Apache Spark, Hadoop MapReduce was the most popular option for handling big datasets using parallel, distributed algorithms. MapReduce has a multi-step, sequential process for job execution.
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