Clusters must be tuned properly to run memory-intensive systems like Spark, H2O, and Impala alongside traditional MapReduce jobs. This Hadoop Summit 2015 talk describes Altiscale’s experience running the new memory-intensive systems in production for its customers. The discussion focuses on the cluster tuning needed to create environments that run a mix of processing frameworks reliably and efficiently. The results show that there’s no need to rip out and replace MapReduce clusters in favor of Spark, or any other memory-intensive system. The slides for this presentation are available HERE.
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