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NEWS: finish formatting new items. Still needs proofreading and updating the release name+date

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Brian Warner 2009-04-09 18:56:55 -07:00
parent 54952e9bea
commit 1facc502f7
1 changed files with 31 additions and 25 deletions
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NEWS
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@ -60,6 +60,17 @@ also shows how much disk space is present, used, reserved, and available for
the Tahoe server, and whether the server is currently running in "read-write"
mode or "read-only" mode.
When a directory node cannot be read (perhaps because of insufficent shares),
a minimal webapi page is created so that the "more-info" links (including a
Check/Repair operation) will still be accessible.
A new "reliability" page was added, with the beginnings of work on a
statistical loss model. You can tell this page how many servers you are using
and their independent failure probabilities, and it will tell you the
likelihood that an arbitrary file will survive each repair period. A partial
paper, written by Shawn Willden, has been added to
docs/proposed/lossmodel.lyx .
** CLI changes
"tahoe check" and "tahoe deep-check" now accept an "--add-lease" argument, to
@ -69,6 +80,7 @@ In many cases, CLI error messages have been improved: the ugly HTMLized
traceback has been replaced by a normal python traceback.
"tahoe deep-check" and "tahoe manifest" now have better error reporting.
"tahoe cp" is now non-verbose by default.
"tahoe backup" now accepts several "--exclude" arguments, to ignore certain
files (like editor temporary files and version-control metadata) during
@ -80,6 +92,18 @@ previously was interpreted as a Tahoe path using a "c:" alias.
The "tahoe restart" command now uses "--force" by default (meaning it will
start a node even if it didn't look like there was one already running).
The "tahoe debug consolidate" command was added. This takes a series of
independent timestamped snapshot directories (such as those created by the
allmydata.com windows backup program, or a series of "tahoe cp -r" commands)
and creates new snapshots that used shared read-only directories whenever
possible (like the output of "tahoe backup"). In the most common case (when
the snapshots are fairly similar), the result will use significantly fewer
directories than the original, allowing "deep-check" and similar tools to run
much faster. In some cases, the speedup can be an order of magnitude or more.
This tool is still somewhat experimental, and only needs to be run on large
backups produced by something other than "tahoe backup", so it was placed
under the "debug" category.
"tahoe cp -r --caps-only tahoe:dir localdir" is a diagnostic tool which,
instead of copying the full contents of files into the local directory,
merely copies their filecaps. This can be used to verify the results of a
@ -93,32 +117,14 @@ exception classes were created for each previous instance of RuntimeError.
Many unit tests were changed to use a non-network test harness, speeding them
up considerably.
Deep-traversal operations (manifest and deep-check) now walk individual
directories in alphabetical order. Occasional turn breaks are inserted to
prevent a stack overflow when traversing directories with hundreds of
entries.
The experimental SFTP server had its path-handling logic changed slightly, to
accomodate more SFTP clients, although there are still issues (#645).
** misc
lossmodel, /reliability page (needs numpy)
#no-network test harness, speed up tests
#streaming deep-check webapi, 'tahoe deep-check'. ERROR line.
#improve CLI error messages for "manifest" and "deep-check"
#remote_add_lease exits silently for unknown SI
#add --add-lease to 'tahoe check' and 'tahoe deep-check', webapi
#expand storage status page: show reserved_space, share-counting crawler,
# expiration crawler
#add --exclude, --exclude-from, --exclude-vcs to 'tahoe backup'
#stop using RuntimeError
#windows: make CLI tolerate "c:\dir\file.txt", instead of thinking "c:" is an
# alias
#"tahoe restart": make --force the default
#645 sftp path-handling logic
#use Accept: header to control HTML-vs-text/plain tracebacks
make "tahoe cp" less verbose by default
when dirnode can't be read, emit minimal webapi page with more-info links
#improve CLI error messages: fewer HTML tracebacks
"tahoe debug consolidate" CLI command
deep-traverse in alphabetical order
turn break in deep-traverse to avoid stack overflow
#tahoe cp -r --caps-only
#fix timing attack against write-enabler, lease-renewal secrets
#fix superlinear hashtree code, reduce alacrity of 10GB file from hours to 2min
* Release 1.3.0 (2009-02-13)