Tuning DSE Hadoop MapReduce

This blog post discusses how to optimize Hadoop configuration settings for better performance with DataStax Enterprise (DSE) and Apache Cassandra®. It covers basic settings affecting the operating system, JVM memory, and disk, as well as specific parameters in core-site.xml and mapred-site.xml files that can improve DSE Hadoop Map/Reduce job performance. The post also highlights how DSE 3.1 and later versions provide auto-tuned default values for some configuration settings to help users determine optimal values.