Performance Management This section describes mechanisms and best practices for improving performance. Continue reading: Optimizing Performance in CDH Choosing and Configuring Data Compression Tuning Hive Tuning Hive on Spark Tuning the Solr Server Tuning Spark Applications Tuning YARN Related Information Tuning Impala for Performance Using S3 Credentials with YARN, MapReduce, or Spark Optimizing Performance in CDH