Apache YARN

At a larger scale, when integrating with Hadoop YARN, the Apache Spark cluster manager can be YARN and the application can run in one of two modes. If the Spark master value is set as yarn-cluster, then the application can be submitted to the cluster and then terminated. The cluster will take care of allocating resources and running tasks. However, if the application master is submitted as yarn-client, then the application stays alive during the life cycle of processing, and requests resources from YARN.