Elasticsearch performance optimizations

Elasticsearch's default settings provide a good out-of-box experience for basic operations like full text search, highlighting, aggregations, and indexing.

However, there are a number of optimizations you can make to improve performance for your use case. This section includes both deployment-level configuration suggestions and usage-level guidance to optimize the performance of your cluster.

Use the following topics to explore relevant strategies:

• General recommendations

• Tune for indexing speed

• Tune for search speed

  For additional guidance specific to ES|QL queries, refer to Optimize ES|QL query performance.

• Tune approximate kNN search

• Tune for disk usage

• Size your shards