EMR

• Acronym of Elastic MapReduce.
• Help you to analyze & process big data.
• A managed service.
• Creates Hadoop clusters with preinstalled, optimized, configurable open-source frameworks to process your big data.
• Supports Apache Spark, HBase, Presto, etc.
• Good for things like ML, or web indexing.
• Have features like Auto Scaling, and can be also can be integrated with spot instances.