Organizations that want to take advantage of the latest capabilities in Apache Hive but don’t want to deal with painful Hadoop upgrades or difficult LLAP configurations have another option in the form of MR3, a new execution engine for Hive that runs natively on Hadoop and Kubernetes.
MR3 is a software offering developed by DataMonad, a Delaware-based software company founded by Sungwoo Park. After prototyping a Java-based execution engine called MR2 in the 2013 timeframe, development of Scala-based MR3 began in 2015. The first release of MR3 was delivered in early 2018, and version 1.0 was released yesterday.
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