AWS Elasticsearch Notes

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General Guidance

  • AWS Elasticsearch uses Blue/Green Deployments
  • Shard Count Optimal 500-2000, more than that may become unstable
  • Dedicated Master = 3 Nodes, one per AZ. This is to prevent split brain.
  • When using Zone Awareness, an even number of nodes need to be selected
  • (current shard layout of 5 Primary Shards isn't suited to an even number of nodes)
  • When a node goes down (es-proc or node) a new node gets provisioned

Check for Problems

Check Max Statistic vs Average Statistic:

  • This will reveal one node vs cluster metrics