Spark can use MR3 as its execution backend. As MR3 supports Hadoop and Kubernetes, Spark on MR3 can run on Hadoop and Kubernetes. Thus Spark on MR3 provides an alternativey way to run Spark on Hadoop and Kubernetes.

For an introduction to Spark on MR3, see the blog article Spark on MR3 - A New Way to Run Apache Spark.

To install Spark on MR3, see Installing Spark on MR3 in the user guide.

For asking questions on MR3, please visit MR3 Google Group.