AWS Open Source Blog

Tag: shard allocation

Diagram of six elasticsearch nodes with three indexes showing uneven, skewed CPU, RAM, JVM, and I/O usage.

Demystifying Elasticsearch shard allocation

At the core of Open Distro for Elasticsearch’s ability to provide a seamless scaling experience, lies its ability distribute its workload across machines. This is achieved via sharding. When you create an index you set a primary and replica shard count for that index. Elasticsearch distributes your data and requests across those shards, and the […]

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