Amazon EMR (previously Amazon Elastic MapReduce) is a managed cluster platform that simplifies running big data frameworks, such as Apache Hadoop and Spark , on AWS to process and analyze big amounts of data.
Apache Spark is an open-source, distributed processing system used for big data workloads. Apache Spark is able to work with data of any size and execute fast analytic queries.
Hadoop is an open-source framework that is used to store and process large datasets. They are widely used in the banking and telecommunication industry.
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