Brian Warner 2edfb1a334 Retrieve: remove the initial prefix-is-still-good check
This check needs to be done with each fetch from the storage server, to
detect when someone has changed the share (i.e. our servermap goes stale).
Doing it just once at the beginning of retrieve isn't enough: a write might
occur after the first segment but before the second, etc.

_try_to_validate_prefix() was not removed: it will be used by the future
check-with-each-fetch code.

test_mutable.Roundtrip.test_corrupt_all_seqnum_late was disabled, since it
fails until this check is brought back. (the corruption it applies only
touches the prefix, not the block data, so the check-less retrieve actually
tolerates it). Don't forget to re-enable it once the check is brought back.
2011-09-09 11:11:50 -07:00
2011-06-10 05:16:56 -07:00

===============================
Tahoe-LAFS
===============================

Tahoe-LAFS is a Free Software/Open Source decentralized data store. It
distributes your filesystem across multiple servers, and even if some of the
servers fail or are taken over by an attacker, the entire filesystem continues
to work correctly and to preserve your privacy and security.

To get started please see `quickstart.rst`_ in the docs directory.

LICENCE
=======

You may use this package under the GNU General Public License, version 2 or, at
your option, any later version.  You may use this package under the Transitive
Grace Period Public Licence, version 1.0, or at your option, any later
version. (You may choose to use this package under the terms of either licence,
at your option.)  See the file `COPYING.GPL`_ for the terms of the GNU General
Public License, version 2.  See the file `COPYING.TGPPL.rst`_ for the terms of
the Transitive Grace Period Public Licence, version 1.0.

See `TGPPL.PDF`_ for why the TGPPL exists, graphically illustrated on three slides.

.. _quickstart.rst: http://tahoe-lafs.org/source/tahoe-lafs/trunk/docs/quickstart.rst
.. _COPYING.GPL: http://tahoe-lafs.org/trac/tahoe-lafs/browser/COPYING.GPL
.. _COPYING.TGPPL.rst: http://tahoe-lafs.org/trac/tahoe-lafs/browser/COPYING.TGPPL.rst
.. _TGPPL.PDF: http://tahoe-lafs.org/~zooko/tgppl.pdf
Description
The Tahoe-LAFS decentralized secure filesystem.
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