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    Understand the role of JVM heap in Elasticsearch performance


    This is more of an analysis of how the jvm heap will kill your Elasticsearch cluster than a “how-to” lesson. If you aren’t familiar with Java apps and the jvm, this 2 1/2 minutes can save you much pain, suffering, and self-loathing by showing you how Elasticsearch utilizes the jvm heap for performance and what to monitor so you know when it’s affecting you.