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Amazon EMR
Management Guide

View Cluster Application Metrics with Ganglia

Ganglia is available with Amazon EMR releases 4.2 and above. Ganglia is an open source project which is a scalable, distributed system designed to monitor clusters and grids while minimizing the impact on their performance. When you enable Ganglia on your cluster, you can generate reports and view the performance of the cluster as a whole, as well as inspect the performance of individual node instances. Ganglia is also configured to ingest and visualize Hadoop and Spark metrics. For more information, see the Amazon EMR Release Guide.