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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 provides recommendations for various use cases.

General recommendations
Tune for indexing speed
Tune for search speed
Tune approximate kNN search
Tune for disk usage
Size your shards
Use Elasticsearch for time series data

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https://www.elastic.co/guide/en/elasticsearch/reference/8.17/how-to.html