mirror of https://gitee.com/bigwinds/arangodb
120 lines
5.2 KiB
Markdown
120 lines
5.2 KiB
Markdown
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ArangoDB
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========
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Slack: [](https://slack.arangodb.com)
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ArangoDB is a multi-model, open-source database with flexible data models for
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documents, graphs, and key-values. Build high performance applications using a
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convenient SQL-like query language or JavaScript extensions. Use ACID
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transactions if you require them. Scale horizontally with a few mouse clicks.
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The supported data models can be mixed in queries and allow ArangoDB to be the
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aggregation point for your data.
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To get started, try one of our 10 minutes [tutorials](https://www.arangodb.com/tutorials)
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in your favorite programming language or try one of our [ArangoDB Cookbook recipes](https://docs.arangodb.com/cookbook).
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For the impatient: [download](https://www.arangodb.com/download) and install
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ArangoDB. Start the server `arangod` and point your browser to `http://127.0.0.1:8529/`.
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Key Features in ArangoDB
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------------------------
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- **Multi-Model**: Documents, graphs and key-value pairs — model your data as
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you see fit for your application.
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- **Joins**: Conveniently join what belongs together for flexible ad-hoc
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querying, less data redundancy.
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- **Transactions**: Easy application development keeping your data consistent
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and safe. No hassle in your client.
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Here is an AQL query that makes use of all those features:
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Joins and transactions are key features for flexible, secure data designs,
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widely used in relational databases but lacking in many NoSQL products. However,
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there is no need to forgo them in ArangoDB. You decide how and when to use joins
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and strong consistency guarantees, without sacrificing performance and scalability.
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Furthermore, ArangoDB offers a JavaScript framework called [Foxx](https://www.arangodb.com/foxx)
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that is executed in the database server with direct access to the data. Build your
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own data-centric microservices with a few lines of code:
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Microservice Example
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By extending the HTTP API with user code written in JavaScript, ArangoDB can be
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turned into a strict schema-enforcing persistence engine.
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Next step, bundle your Foxx application as a [docker container](https://docs.arangodb.com/cookbook/Cloud/NodeJsDocker.html)
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and get it running in the cloud.
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Other features of ArangoDB include:
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- Use a **data-centric microservices** approach with ArangoDB Foxx and fuse your
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application-logic and database together for maximal throughput
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- JavaScript for all: **no language zoo**, you can use one language from your
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browser to your back-end
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- **Flexible data modeling**: model your data as combination of key-value pairs,
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documents or graphs - perfect for social relations
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- Different **storage engines**: ArangoDB provides a storage engine for mostly
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in-memory operations and an alternative storage engine based on RocksDB which
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handle datasets that are much bigger than RAM.
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- **Powerful query language** (AQL) to retrieve and modify data
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- **Transactions**: run queries on multiple documents or collections with
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optional transactional consistency and isolation
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- **Replication** and **Sharding**: set up the database in a master-slave
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configuration or spread bigger datasets across multiple servers
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- Configurable **durability**: let the application decide if it needs more
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durability or more performance
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- **Schema-free schemata** let you combine the space efficiency of MySQL with the
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performance power of NoSQL
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- Free **index choice**: use the correct index for your problem, be it a skiplist
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or a fulltext search
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- ArangoDB is **multi-threaded** - exploit the power of all your cores
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- It is **open source** (Apache License 2.0)
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For more in-depth information read the [design goals of ArangoDB](https://www.arangodb.com/2012/03/avocadodbs-design-objectives/)
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Latest Release
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--------------
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Packages for all supported platforms can be downloaded from [https://www.arangodb.com/download](https://www.arangodb.com/download/).
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Please also check [what's new in ArangoDB](https://docs.arangodb.com/latest/Manual/ReleaseNotes/).
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More Information
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----------------
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Please check the [Installation Manual](https://docs.arangodb.com/latest/Manual/GettingStarted/Installing/)
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for installation and compilation instructions.
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The [User Manual](https://docs.arangodb.com/latest/Manual/GettingStarted/) has an
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introductory chapter showing the basic operations of ArangoDB.
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Stay in Contact
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---------------
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We really appreciate feature requests and bug reports. Please use our Github
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issue tracker for reporting them:
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[https://github.com/arangodb/arangodb/issues](https://github.com/arangodb/arangodb/issues)
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You can use our Google group for improvements, feature requests, comments:
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[https://www.arangodb.com/community](https://www.arangodb.com/community)
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StackOverflow is great for questions about AQL, usage scenarios etc.
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[https://stackoverflow.com/questions/tagged/arangodb](https://stackoverflow.com/questions/tagged/arangodb)
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To chat with the community and the developers we offer a Slack chat:
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[https://slack.arangodb.com/](https://slack.arangodb.com/)
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