Azure fully managed cloud service for running open-source analytics frameworks like Apache Hadoop, Spark, Kafka, and HBase at scale. Like renting a pre-assembled big data cluster on Azure that handles all the infrastructure setup, patching, and scaling so you can focus on processing data rather than managing servers.
A financial services firm uses HDInsight to run nightly Spark jobs that process millions of transactions, detecting fraud patterns across billions of records without maintaining any physical cluster hardware.
These services provide managed big data frameworks, allowing users to run analytics and processing tasks without managing infrastructure.