| 12345678910111213141516171819202122232425262728 | [[how-to]]= How To[partintro]--Elasticsearch ships with defaults which are intended to give a good out ofthe box experience. Full text search, highlighting, aggregations, and indexingshould all just work without the user having to change anything.Once you better understand how you want to use Elasticsearch, however,there are a number of optimizations you can make to improve performancefor your use case.This section provides guidance about which changes should and shouldn't bemade.--include::how-to/general.asciidoc[]include::how-to/recipes.asciidoc[]include::how-to/indexing-speed.asciidoc[]include::how-to/search-speed.asciidoc[]include::how-to/disk-usage.asciidoc[]include::how-to/size-your-shards.asciidoc[]
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