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[Alluxio](https://www.alluxio.io) (formerly known as Tachyon)

is a virtual distributed storage system. It bridges the gap between

computation frameworks and storage systems, enabling computation applications to connect to

numerous storage systems through a common interface. Read more about

[Alluxio Overview](https://docs.alluxio.io/os/user/stable/en/Overview.html).

Alluxio Open Source (formerly known as Tachyon) is a Distributed Caching Platform for large-scale data.

It bridges the gap between computation frameworks and storage systems, enabling computation applications to connect to numerous storage systems through a common interface.

This GitHub repository is the open-source edition of Alluxio, which is purpose-built for analytics workloads.

It provides caching and acceleration for structured data analytics and is widely adopted with data-intensive computation engines such as Presto, Spark, and Trino.

The Alluxio project originated from a research project called Tachyon at AMPLab, UC Berkeley,

which was the data layer of the Berkeley Data Analytics Stack ([BDAS](https://amplab.cs.berkeley.edu/bdas/)).

For more details, please refer to Haoyuan Li's PhD dissertation

[Alluxio: A Virtual Distributed File System](https://www2.eecs.berkeley.edu/Pubs/TechRpts/2018/EECS-2018-29.html).

The open-source edition of Alluxio is purpose-built for analytics workloads.

It accelerates structured data analytics and scales to manage up to 100 million files.

This Alluxio Open Source Edition is available for free without support and is recommended for testing, development, and small-scale production environments.

For AI and machine learning workloads, including model training, distribution and inference at scale, Alluxio Enterprise Edition provides a fundamentally different architecture with a decentralized metadata service.

As a result, it scales horizontally to support tens of billions of files and delivers higher performance along with FUSE-based POSIX integration for compatibility with popular AI frameworks, including PyTorch, TensorFlow, and Ray.

Alluxio is used in production to manage Petabytes of data in many leading companies, with

the largest deployment exceeding 3,000 nodes. You can find more use cases at

[Powered by Alluxio](https://www.alluxio.io/powered-by-alluxio) or visit our first community conference ([Data Orchestration Summit](https://www.alluxio.io/data-orchestration-summit-2019/)) to learn from other community members!

To learn more about Alluxio Enterprise Edition, visit:[https://www.alluxio.io/enterprise-ai](https://www.alluxio.io/enterprise-ai).

For more details about the differences between editions, visit[https://www.alluxio.io/editions](https://www.alluxio.io/editions).

Alluxio Open Source Foundation is the owner of Alluxio project.

Project operation is done by Alluxio Project Management Committee (PMC).

You can checkout more details in its structure and how to join Alluxio PMC

[here](https://github.com/Alluxio/alluxio/wiki/Alluxio-Project-Management-Committee-(PMC)).

You can check out more details on its structure and how to join Alluxio PMC[here](https://github.com/Alluxio/alluxio/wiki/Alluxio-Project-Management-Committee-(PMC)).

Please use the following to reach members of the community:

*[Alluxio Community Slack Channel](https://www.alluxio.io/slack): post your questions here if you seek for help for general questions or issues using Alluxio.

*[Special Interest Groups (SIG) for Alluxio users and developers](#contributing)

* Community Events:[upcoming online office hours, meetups and webinars](https://www.alluxio.io/events)

* Meetup Groups:[Global Online Meetup](https://www.meetup.com/Alluxio-Global-Online-Meetup/),[Bay Area Meetup](http://www.meetup.com/Alluxio),

[New York Meetup](https://www.meetup.com/Alluxio-Open-Source-New-York-Meetup),

[Beijing Alluxio Meetup](https://www.meetup.com/meetup-group-iLMBZGhS/),[Austin Meetup](https://www.meetup.com/Cloud-Data-Orchestration-Austin/)

*[Alluxio Twitter](https://twitter.com/alluxio);[Alluxio Youtube Channel](https://www.youtube.com/channel/UCpibQsajhwqYPLYhke4RigA);[Alluxio Mailing List](https://groups.google.com/forum/?fromgroups#!forum/alluxio-users)

Please use the following to reach members of the community:

-[Alluxio Community Slack Channel](https://www.alluxio.io/slack): post your questions here if you seek help for general questions or issues using Alluxio.

-[Community Events](https://www.alluxio.io/events): upcoming online tech talks, meetups and webinars.

-[Alluxio Twitter](https://twitter.com/alluxio);[Alluxio Youtube Channel](https://www.youtube.com/channel/UCpibQsajhwqYPLYhke4RigA);[Alluxio Linkedin](https://www.linkedin.com/company/alluxio-inc-/).

[how to contribute to Alluxio](https://docs.alluxio.io/os/user/stable/en/contributor/Contributor-Getting-Started.html).

For new contributor, please take two[new contributor tasks](https://github.com/Alluxio/new-contributor-tasks).

For advanced feature requests and contributions,

Alluxio core team is hosting regular online meetings with community users and developers to iterate the project in two special interest groups:

* Alluxio and AI workloads: e.g., running Tensorflow, Pytorch on Alluxio through the POSIX API. Checkout the[meeting notes](https://docs.google.com/spreadsheets/d/1OlprIiUkGjMuZJ_6cLTJYVJpTGpnTWkFhHzX16tYNDQ/)

* Alluxio and Presto workloads: e.g., running Presto on Alluxio. Checkout the[meeting notes](https://docs.google.com/spreadsheets/d/1V-fxqfG_oj3B1ZWSgbRWVuTHFvjL3pq6uXgAL-xvFQA/)

Subscribe our[public calendar](https://calendar.google.com/calendar/embed?src=alluxio.com_g9ec8agk27baqu2nu692ft1m3s%40group.calendar.google.com&ctz=America%2FLos_Angeles) to join us.

-[Documentation](https://documentation.alluxio.io/os-en)

-[Getting Started](https://documentation.alluxio.io/os-en/overview-1/getting-started)

-[Contribution Guide](https://documentation.alluxio.io/os-en/contributor/contributor-getting-started)

-[Alluxio Website](https://www.alluxio.io/)

-[Downloads](https://www.alluxio.io/download)

-[Releases and Notes](https://www.alluxio.io/download/releases/)

-[Documentation](https://www.alluxio.io/docs/)