Welcome to Allmydata "Tahoe"

The ​Allmydata "Tahoe" project is a distributed, fault-tolerant storage grid, available under a free-software license.

You can store files of any length in the grid and retrieve them with a cryptographically generated URI that securely identifies and decrypts that file. You can also organize files with filenames and directories, in the familiar style. The basic idea is that the data in this storage grid is spread over all participating nodes, using an algorithm that can recover the data even if a majority of the nodes are no longer available.

The code is currently functional, but it is targeted at hackers who are willing to build from source and use a minimal, text-oriented web user interface.

Get Started

The ​the README file tells how to acquire and install the code, how to run a node than can upload and download files, how to connect to the public test grid operated by ​Allmydata, Inc., and how to set up your own private grid.

Documentation

Please see the following files for more information:

• ​the release notes, announcing the first public release on April 30, 2007 and giving a general overview of why the Tahoe project exists

• ​architecture.txt, explaining the design decisions that have given the grid its current shape

• ​roadmap.txt, showing how the functionality has been incrementally improved so far, and what improvements we plan to make next

• ​codemap.txt, laying out the software design and the organization of the source code

• TahoeIssues? contains some discussion, open issues, and more docs

News and Status

• the ​Allmydata, Inc. blog

• ​buildbot: current build status including unit tests

• archived code coverage showing which lines of code get exercised by the unit tests (scroll down to the bottom for the most recent build)

• graph of code coverage over time

• the tahoe-dev mailing list

• the zfec-dev mailing list is specific to the zfec erasure-coding library.

License

Tahoe is offered under the GNU General Public License (v2). It also comes with the added permission that, in the case that you are obligated to release a derived work under this licence (as per section 2.b of the GPLv2), you may delay the fulfillment of this obligation for up to 12 months.

Test Network

An experimental public testnet is running on Allmydata servers. It is subject to being updated at random times, so compatibility is likely to break without notice.

After installing the code according to the README, set up a client node with the following files in its base directory:

file name	file contents
introducer.furl	pb://xextf3eap44o3wi27mf7ehiur6wvhzr6@207.7.153.180:56677,127.0.0.1:56677/introducer
vdrive.furl	pb://xextf3eap44o3wi27mf7ehiur6wvhzr6@207.7.153.180:56677,127.0.0.1:56677/vdrive

The testnet is currently running foolscap-0.1.2, available in ​http://allmydata.org/source/ . All nodes in the network must be running the same version of Foolscap to be able to establish connections.

Trac Starting Points -- How To Use This Bug Tracker/Source? Code Browser/Wiki?

The following are all written by members of the Trac community and apply to the Trac Bug Tracker/Source? Code Browser/Wiki? in general.

• OriginalWikiStart -- the original Trac welcome page
• TracGuide -- Built-in Documentation
• ​The Trac project -- Trac Open Source Project
• ​Trac FAQ -- Frequently Asked Questions
• TracSupport -- Trac Support

For a complete list of local wiki pages, see TitleIndex.