How do you build a fast, reliable Elasticsearch cluster? Use a recent version. Get your topology basics right: 2n+1 master nodes. Use standalone, master, data, query and ingest nodes appropriately. Use available RAM wisely. Disable or minimize swapping. Use an appropriate number of shards (hint: 1 is probably a good default).
We have a new tool to run (most of) these checks for you: www.elasticsearchmadeeasy.comRead More