mirror of https://gitee.com/bigwinds/arangodb
99 lines
4.7 KiB
Plaintext
99 lines
4.7 KiB
Plaintext
ArangoDB
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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 and vertically with a few
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mouse clicks.
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ArangoDB is Polyglot Persistence done right. The supported data models can be
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mixed in queries and allow ArangoDB to be the aggregation point for the data
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request you have in mind.
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To get started, try one of our 10 Minutes Tutorials in your favourite
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programming language or try one of our ArangoDB_Cookbook_recipes.
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For the impatient: download and install ArangoDB. Start the server arangod and
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point your browser to http://127.0.0.1:8529/.
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Key Features in ArangoDB
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Multi-Model Documents, graphs and key-value pairs — model your data as you
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see fit for your application.
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Joins Conveniently join what belongs together for flexible ad-hoc querying,
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less data redundancy.
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Transactions Easy application development keeping your data consistent and
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safe. No hassle in your client.
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Here is an AQL query that makes use of all those features: AQL Query Example
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Joins and Transactions are key features for flexible, secure data designs,
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widely used in RDBMSs that you won’t want to miss in NoSQL products. You
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decide how and when to use Joins and strong consistency guarantees, keeping all
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the power for scaling and performance as choice.
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Furthermore, ArangoDB offers a microservice framework called Foxx to build your
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own Rest API with a few lines of code.
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Microservice Example Microservice Example
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Next step, bundle your Foxx application as a docker_container and get it
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running in the cloud.
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Key features include:
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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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* 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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* ArangoDB is multi-threaded - exploit the power of all your cores
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* Flexible data modelling: model your data as combination of key-value pairs,
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documents or graphs - perfect for social relations
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* Free index choice: use the correct index for your problem, be it a skip list
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or a fulltext search
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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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* No-nonsense storage: ArangoDB uses all of the power of modern storage
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hardware, like SSD and large caches
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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 optional
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transactional consistency and isolation
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* Replication and Sharding: set up the database in a master-slave configuration
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or spread bigger datasets across multiple servers
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* It is open source (Apache Licence 2.0)
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For more in-depth information read the design_goals_of_ArangoDB
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Latest Release - ArangoDB 2.5
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The full changelog could be found in the documentation.
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Sparse Indizes: In ArangoDB 2.5, hash and skiplist indexes can optionally be
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made sparse. Here is a performance_comparison that shows how you can benefit
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from great savings in memory and index creation CPU time declaring indexes as
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sparse.
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We’ve added some small but useful AQL language improvements plus several AQL
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optimizer improvements.
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Object attribute names in ArangoDB 2.5 can be specified using static string
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literals, bind parameters, and dynamic expressions.
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Function RANDOM_TOKEN(length): produces a pseudo-random string of the specified
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length. Such strings can be used for id or token generation.
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One example implementation is the API-Key_management that restricts access to
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certain routes of an API. You can use this custom Foxx library to start
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charging your valuable data right away.
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Streamlined development process: ArangoDB 2.5 improves the development process
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of data-centric microservices with the Foxx framework.
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Installing an app is now as easy as it should be: * install: get your Foxx app
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up and running * uninstall: shut it down and erase it from disk
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Developers can enable the new development mode for a single app. This
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deactivates caching and provides fine-graded debugging information.
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More Information
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Please check the Installation_Manual for installation and compilation
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instructions.
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The User_Manual has an introductory chapter showing the basic operations of
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ArangoDB.
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Stay in Contact
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Please note that there will be bugs and we’d really appreciate it if you
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report them:
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https://github.com/arangodb/arangodb/issues
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You can use the Google group for improvements, feature requests, comments
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http://www.arangodb.com/community
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