git-annex/doc/todo/tahoe_lfs_for_reals.mdwn
Joey Hess e213ef310f git-annex (5.20140717) unstable; urgency=high
* Fix minor FD leak in journal code. Closes: #754608
  * direct: Fix handling of case where a work tree subdirectory cannot
    be written to due to permissions.
  * migrate: Avoid re-checksumming when migrating from hashE to hash backend.
  * uninit: Avoid failing final removal in some direct mode repositories
    due to file modes.
  * S3: Deal with AWS ACL configurations that do not allow creating or
    checking the location of a bucket, but only reading and writing content to
    it.
  * resolvemerge: New plumbing command that runs the automatic merge conflict
    resolver.
  * Deal with change in git 2.0 that made indirect mode merge conflict
    resolution leave behind old files.
  * sync: Fix git sync with local git remotes even when they don't have an
    annex.uuid set. (The assistant already did so.)
  * Set gcrypt-publish-participants when setting up a gcrypt repository,
    to avoid unncessary passphrase prompts.
    This is a security/usability tradeoff. To avoid exposing the gpg key
    ids who can decrypt the repository, users can unset
    gcrypt-publish-participants.
  * Install nautilus hooks even when ~/.local/share/nautilus/ does not yet
    exist, since it is not automatically created for Gnome 3 users.
  * Windows: Move .vbs files out of git\bin, to avoid that being in the
    PATH, which caused some weird breakage. (Thanks, divB)
  * Windows: Fix locking issue that prevented the webapp starting
    (since 5.20140707).

# imported from the archive
2014-07-17 11:27:25 -04:00

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Markdown

[[forum/tips:_special__95__remotes__47__hook_with_tahoe-lafs]] is a good
start, but Zooko points out that using Tahoe's directory translation layer
incurs O(N^2) overhead as the number of objects grows. Also, making
hash subdirectories in Tahoe is expensive. Instead it would be good to use
it as a key/value store directly. The catch is that doing so involves
sending the content to Tahoe, and getting back a key identifier.
This would be fairly easy to do as a [[backend|backends]], which can assign its
own key names (although typically done before data is stored in it),
but a tahoe-lafs special remote would be more flexible.
To support a special remote, a mapping is needed from git-annex keys to
Tahoe keys, stored in the git-annex branch.
> This is now done, however, there are 3 known
> problems:
>
> * tahoe start run unncessarily <https://tahoe-lafs.org/trac/tahoe-lafs/ticket/2149>
> * web.port can conflict <https://tahoe-lafs.org/trac/tahoe-lafs/ticket/2147>
> * Nothing renews leases, which is a problem on grids that expire.
> <https://tahoe-lafs.org/trac/tahoe-lafs/ticket/2212>
> --[[Joey]]