Top Elasticsearch tips
summary
Configure clusters by testing actual limits: run a one-shard sizing test that indexes typical documents and simulates searches to find the maximum shard size and total docs before performance degrades. Use cross-region deployments with at least three locations and cross-cluster replication so losing one region does not lose data. Set minimum_master_nodes=2, disable swap and lock JVM memory, keep node RAM under about 64 GB, prefer fast local SSDs (RAID0), reduce refresh frequency, minimize unnecessary replicas, and enable monitoring and security plugins.
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chapters (10)
- 0:00Elasticsearch tips intro
- 1:05Shard design and scaling
- 3:18Text indexing challenges
- 5:26Document limits testing
- 7:12Multi-location cluster setup
- 9:27Hardware and JVM config
- 11:39Daily monitoring tasks
- 13:26Security and access control
- 14:53Admin and benchmarking tools
- 15:14Q&A
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