Hi. We have a 3 node Elasticsearch 1.7.5 cluster that has been staying at 85-89% JVM heap usage. Each node is has 16GB of RAM allocated to Elasticsearch. Due to the high JVM heap usage, we’re planning on expanding our cluster, but we’re not sure whether we should add additional data nodes or inst…

Choosing between client nodes and data nodes

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Choosing between client nodes and data nodes

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