- fix lookup cache that was not really used
- fix advlock for read-only files
- return EBADF on directory read/write instead of passing to the filesystem
- The most significant new feature in this release is MDMF: "Medium-size
Distributed Mutable Files". Unlike standard SDMF files, these provide
efficient partial-access (reading and modifying small portions of the file
instead of the whole thing). MDMF is opt-in (it is not yet the default
format for mutable files), both to ensure compatibility with previous
versions, and because the algorithm does not yet meet memory-usage goals.
Enable it with ``--format=MDMF`` in the CLI (``tahoe put`` and ``tahoe
mkdir``), or the "format" radioboxes in the web interface. See
`<docs/specifications/mutable.rst>`_ for more details (`#393`_, `#1507`_)
- A "blacklist" feature allows blocking access to specific files through
a particular gateway. See the "Access Blacklist" section of
`<docs/configuration.rst>`_ for more details. (`#1425`_)
- A "drop-upload" feature has been added, which allows you to upload
files to a Tahoe-LAFS directory just by writing them to a local
directory. This feature is experimental and should not be relied on
to store the only copy of valuable data. It is currently available
only on Linux. See `<docs/frontends/drop-upload.rst>`_ for documentation.
(`#1429`_)
- The timeline of immutable downloads can be viewed using a zoomable and
pannable JavaScript-based visualization. This is accessed using the
'timeline' link on the File Download Status page for the download, which
can be reached from the Recent Uploads and Downloads page.
- do not confuse FUSE fileno with inode numbers
- do not use kernel name cache, implement our own instead.
- honour cache directive from FUSE filesystem for name and attrbiutes
and the amount of data memory involved is not easy to forcast. We therefore
raise the limit to the maximum.
Patch from Manuel Bouyer. It helps completing a cvs update on a glusterfs
volume.
This maintenance release with no new features. Majot bug fixes are:
Bug 2464 Fixed all the issues caused by GFID mismatch during
distribute rename.
Bug 2988 Fixed the issue of high CPU usage when Directory Quota
is enabled.
Bug 3122 Enhanced the volume set interface to support io-threads
on the client.
Bug 3210 Fixed the issue of modified mtime/atime of the files after
rebalance operation.
Bug 3191 Fixed the issue with symlinks during rebalance operation.
** Security-related Bugfix
- Fix flaw that would allow a person who knows a storage index of a file to
delete shares of that file (#1528).
- Remove corner cases in mutable file bounds management which could expose
extra lease info or old share data (from prior versions of the mutable
file) if someone with write authority to that mutable file exercised these
corner cases in a way that no actual Tahoe-LAFS client does. (Probably not
exploitable.) (#1528).
