# Tarantool
[![Actions Status][actions-badge]][actions-url]
[![Code Coverage][coverage-badge]][coverage-url]
[![Telegram][telegram-badge]][telegram-url]
[![GitHub Discussions][discussions-badge]][discussions-url]
[![Stack Overflow][stackoverflow-badge]][stackoverflow-url]
[Tarantool][tarantool-url] is an in-memory computing platform consisting of a
database and an application server.
It is distributed under [BSD 2-Clause][license] terms.
Key features of the application server:
* Heavily optimized Lua interpreter with incredibly fast tracing JIT compiler,
based on LuaJIT 2.1.
* Cooperative multitasking, non-blocking IO.
* [Persistent queues][queue].
* [Sharding][vshard].
* [Cluster and application management framework][cartridge].
* Access to external databases such as [MySQL][mysql] and [PostgreSQL][pg].
* A rich set of built-in and standalone [modules][modules].
Key features of the database:
* MessagePack data format and MessagePack based client-server protocol.
* Two data engines: 100% in-memory with complete WAL-based persistence and an
own implementation of LSM-tree, to use with large data sets.
* Multiple index types: HASH, TREE, RTREE, BITSET.
* Document oriented JSON path indexes.
* Asynchronous master-master replication.
* Synchronous quorum-based replication.
* RAFT-based automatic leader election for the single-leader configuration.
* Authentication and access control.
* ANSI SQL, including views, joins, referential and check constraints.
* [Connectors][connectors] for many programming languages.
* The database is a C extension of the application server and can be turned
off.
Supported platforms are Linux (x86_64, aarch64), Mac OS X (x86_64, M1), FreeBSD
(x86_64).
Tarantool is ideal for data-enriched components of scalable Web architecture:
queue servers, caches, stateful Web applications.
To download and install Tarantool as a binary package for your OS or using
Docker, please see the [download instructions][download].
To build Tarantool from source, see detailed [instructions][building] in the
Tarantool documentation.
To find modules, connectors and tools for Tarantool, check out our [Awesome
Tarantool][awesome-list] list.
Please report bugs to our [issue tracker][issue-tracker]. We also warmly
welcome your feedback on the [discussions][discussions-url] page and questions
on [Stack Overflow][stackoverflow-url].
We accept contributions via pull requests. Check out our [How to get
involved][get-involved] guide.
Thank you for your interest in Tarantool!
[actions-badge]: https://github.com/tarantool/tarantool/workflows/release/badge.svg
[actions-url]: https://github.com/tarantool/tarantool/actions
[coverage-badge]: https://coveralls.io/repos/github/tarantool/tarantool/badge.svg?branch=master
[coverage-url]: https://coveralls.io/github/tarantool/tarantool?branch=master
[telegram-badge]: https://img.shields.io/badge/Telegram-join%20chat-blue.svg
[telegram-url]: http://telegram.me/tarantool
[discussions-badge]: https://img.shields.io/github/discussions/tarantool/tarantool
[discussions-url]: https://github.com/tarantool/tarantool/discussions
[stackoverflow-badge]: https://img.shields.io/badge/stackoverflow-tarantool-orange.svg
[stackoverflow-url]: https://stackoverflow.com/questions/tagged/tarantool
[tarantool-url]: https://www.tarantool.io/en/
[license]: LICENSE
[modules]: https://www.tarantool.io/en/download/rocks
[queue]: https://github.com/tarantool/queue
[vshard]: https://github.com/tarantool/vshard
[cartridge]: https://github.com/tarantool/cartridge
[mysql]: https://github.com/tarantool/mysql
[pg]: https://github.com/tarantool/pg
[connectors]: https://www.tarantool.io/en/download/connectors
[download]: https://www.tarantool.io/en/download/
[building]: https://www.tarantool.io/en/doc/latest/dev_guide/building_from_source/
[issue-tracker]: https://github.com/tarantool/tarantool/issues
[get-involved]: https://www.tarantool.io/en/doc/latest/contributing/contributing/
[awesome-list]: https://github.com/tarantool/awesome-tarantool/
