Free and Open, Distributed, RESTful Search Engine
Elasticsearch is the distributed, RESTful search and analytics engine at the heart of the https://www.elastic.co/products[Elastic Stack]. You can use Elasticsearch to store, search, and manage data for:
... and more!
To learn more about Elasticsearch's features and capabilities, see our https://www.elastic.co/products/elasticsearch[product page].
[[get-started]] == Get started
The simplest way to set up Elasticsearch is to create a managed deployment with https://www.elastic.co/cloud/as-a-service[Elasticsearch Service on Elastic Cloud].
If you prefer to install and manage Elasticsearch yourself, you can download the latest version from https://www.elastic.co/downloads/elasticsearch[elastic.co/downloads/elasticsearch].
For more installation options, see the https://www.elastic.co/guide/en/elasticsearch/reference/current/install-elasticsearch.html[Elasticsearch installation documentation].
[[upgrade]] == Upgrade
To upgrade from an earlier version of Elasticsearch, see the https://www.elastic.co/guide/en/elasticsearch/reference/current/setup-upgrade.html[Elasticsearch upgrade documentation].
[[build-source]] == Build from source
Elasticsearch uses https://gradle.org[Gradle] for its build system.
To build a distribution for your local OS and print its output location upon
./gradlew :distribution:archives:linux-tar:assemble ./gradlew :distribution:archives:darwin-tar:assemble
Distributions are output to
To run the test suite, see xref:TESTING.asciidoc[TESTING].
[[docs]] == Documentation
For the complete Elasticsearch documentation visit https://www.elastic.co/guide/en/elasticsearch/reference/current/index.html[elastic.co].
For information about our documentation processes, see the xref:docs/README.asciidoc[docs README].
[[contribute]] == Contribute
For contribution guidelines, see xref:CONTRIBUTING.md[CONTRIBUTING].
[[questions]] == Questions? Problems? Suggestions?
To report a bug or request a feature, create a https://github.com/elastic/elasticsearch/issues/new/choose[GitHub Issue]. Please ensure someone else hasn't created an issue for the same topic.
Need help using Elasticsearch? Reach out on the https://discuss.elastic.co[Elastic Forum] or https://ela.st/slack[Slack]. A fellow community member or Elastic engineer will be happy to help you out.