README.md

## Apache RocketMQ [![Build Status](https://travis-ci.org/apache/rocketmq.svg?branch=master)](https://travis-ci.org/apache/rocketmq) [![Coverage Status](https://coveralls.io/repos/github/apache/rocketmq/badge.svg?branch=master)](https://coveralls.io/github/apache/rocketmq?branch=master)
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**[Apache RocketMQ](https://rocketmq.apache.org) is a distributed messaging and streaming platform with low latency, high performance and reliability, trillion-level capacity and flexible scalability.**

It offers a variety of features:

* Pub/Sub messaging model
* Scheduled message delivery
* Message retroactivity by time or offset
* Log hub for streaming
* Big data integration
* Reliable FIFO and strict ordered messaging in the same queue
* Efficient pull&push consumption model
* Million-level message accumulation capacity in a single queue
* Multiple messaging protocols like JMS and OpenMessaging
* Flexible distributed scale-out deployment architecture
* Lightning-fast batch message exchange system
* Various message filter mechanics such as SQL and Tag
* Docker images for isolated testing and cloud isolated clusters
* Feature-rich administrative dashboard for configuration, metrics and monitoring


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## Learn it & Contact us
* Mailing Lists: <https://rocketmq.apache.org/about/contact/>
* Home: <https://rocketmq.apache.org>
* Docs: <https://rocketmq.apache.org/docs/quick-start/>
* Issues: <https://github.com/apache/rocketmq/issues>
* Ask: <https://stackoverflow.com/questions/tagged/rocketmq>
* Slack: <https://rocketmq-invite-automation.herokuapp.com/>
 

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## Apache RocketMQ Community
* [RocketMQ Community Incubator Projects](https://github.com/apache/rocketmq-externals)

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## Contributing
We always welcome new contributions, whether for trivial cleanups, big new features or other material rewards, more details see [here](http://rocketmq.apache.org/docs/how-to-contribute/).
 
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## License
[Apache License, Version 2.0](http://www.apache.org/licenses/LICENSE-2.0.html) Copyright (C) Apache Software Foundation