Currently Spark provides integration with external resource-managers such as Apache Hadoop YARN, Mesos etc. Specifically in the context of YARN, the current architecture of Spark-on-YARN can be enhanced to provide significantly better utilization of cluster resources for large scale, batch and/or ETL applications when run alongside other applications (Spark and others) and services in YARN. Propos
This document provides a summary of improvements made to Hive's performance through the use of Apache Tez and other optimizations. Some key points include: - Hive was improved to use Apache Tez as its execution engine instead of MapReduce, reducing latency for interactive queries and improving throughput for batch queries. - Statistics collection was optimized to gather column-level statistics fro
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