From: Luke Kenneth Casson Leighton <luke.leighton@gmail.com>
To: Nguyen Thai Ngoc Duy <pclouds@gmail.com>
Cc: git <git@vger.kernel.org>
Subject: Re: git pack/unpack over bittorrent - works!
Date: Thu, 2 Sep 2010 14:37:30 +0100 [thread overview]
Message-ID: <AANLkTimpE6rf0azHtrz6BFK5d7YojF+G1YuSA1gusSC=@mail.gmail.com> (raw)
In-Reply-To: <AANLkTinu=RoGfq93d+yjHiQwCt0HXx4YtqfvhXyZdO=F@mail.gmail.com>
On Wed, Sep 1, 2010 at 11:04 PM, Nguyen Thai Ngoc Duy <pclouds@gmail.com> wrote:
> On Thu, Sep 2, 2010 at 12:36 AM, Luke Kenneth Casson Leighton
> <luke.leighton@gmail.com> wrote:
>> http://gitorious.org/python-libbittorrent/pybtlib
>>
>> hurrah - success! git fsck shows a "dangling commit"!
>>
>> so, as a proof-of-concept, 400 lines of python code plus a bittorrent
>> library shows that it's possible to create a peer-to-peer distributed
>> version of "git fetch", by treating the pack objects as "files to be
>> shared".
>
> You should have a look at gittorrent [1] (and finish it too if you are
> interested).
it's in perl, and has been shelved afaik. sam (hi sam, you still
here? :) abandoned bittorrent as the underlying mechanism, and i
disagree with that decision, hence why i created what i have, to prove
that it's viable.
so a) i don't do perl so would need to re-create what's been done
(which i don't understand, and, because it's incomplete, i can't do a
perl-to-python translation and "have something working") b) i don't
believe in reinventing the wheel ESPECIALLY on something as complex as
peer-to-peer file distribution.
cameron dale created apt-p2p which is a recreation of a peer-to-peer
file distribution mechanism, and, not surprisingly, it's slow and
problematic.
> There were discussions whether a pack is stable enough to
> be shared like this,
it seems to be. as long as each version of git produces the exact
same pack object, off of the command "git pack-objects --all --stdout
--thin {ref} < {objref}"
is that what you're referring to?
because if it isn't, then yes, the sharing of files (named by a
virtual filename of packs/{ref}/{objref} of course) which _might_ have
differences, yeah, it becomes a bit of a fuck-up.
> one of the reason "commit reel" was introduced.
ah _ha_. i need to look that up. will get back to you.
l.
next prev parent reply other threads:[~2010-09-02 13:37 UTC|newest]
Thread overview: 88+ messages / expand[flat|nested] mbox.gz Atom feed top
2010-09-01 14:36 git pack/unpack over bittorrent - works! Luke Kenneth Casson Leighton
2010-09-01 22:04 ` Nguyen Thai Ngoc Duy
2010-09-02 13:37 ` Luke Kenneth Casson Leighton [this message]
2010-09-02 13:53 ` Luke Kenneth Casson Leighton
2010-09-02 14:08 ` Ævar Arnfjörð Bjarmason
2010-09-02 15:33 ` A Large Angry SCM
2010-09-02 15:42 ` Luke Kenneth Casson Leighton
2010-09-02 15:51 ` Luke Kenneth Casson Leighton
2010-09-02 17:06 ` A Large Angry SCM
2010-09-02 15:58 ` Jeff King
2010-09-02 16:41 ` Nicolas Pitre
2010-09-02 17:09 ` A Large Angry SCM
2010-09-02 17:31 ` Nicolas Pitre
2010-09-02 19:17 ` Luke Kenneth Casson Leighton
2010-09-02 19:29 ` Shawn O. Pearce
2010-09-02 19:51 ` Luke Kenneth Casson Leighton
2010-09-02 20:06 ` Luke Kenneth Casson Leighton
2010-09-03 0:36 ` Nicolas Pitre
2010-09-03 10:34 ` Luke Kenneth Casson Leighton
2010-09-03 17:03 ` Junio C Hamano
2010-09-02 20:28 ` Brandon Casey
2010-09-02 20:48 ` Luke Kenneth Casson Leighton
2010-09-02 20:45 ` Jakub Narebski
2010-09-02 21:10 ` Luke Kenneth Casson Leighton
2010-09-02 21:19 ` Luke Kenneth Casson Leighton
2010-09-03 0:29 ` Nicolas Pitre
2010-09-03 2:48 ` Nguyen Thai Ngoc Duy
2010-09-03 10:55 ` Luke Kenneth Casson Leighton
2010-09-03 10:23 ` Luke Kenneth Casson Leighton
2010-09-03 10:54 ` Luke Kenneth Casson Leighton
2010-09-02 18:07 ` Luke Kenneth Casson Leighton
2010-09-02 18:23 ` Casey Dahlin
2010-09-02 16:58 ` A Large Angry SCM
2010-09-02 17:21 ` Nicolas Pitre
2010-09-02 19:41 ` Luke Kenneth Casson Leighton
2010-09-02 19:52 ` A Large Angry SCM
2010-09-02 23:09 ` Nicolas Pitre
2010-09-03 10:37 ` Theodore Tso
2010-09-03 11:04 ` Luke Kenneth Casson Leighton
2010-09-03 17:12 ` Junio C Hamano
2010-09-03 18:31 ` Ted Ts'o
2010-09-03 19:41 ` Nicolas Pitre
2010-09-03 21:11 ` Luke Kenneth Casson Leighton
2010-09-04 0:24 ` Nguyen Thai Ngoc Duy
2010-09-04 0:57 ` Nguyen Thai Ngoc Duy
2010-09-04 1:52 ` Artur Skawina
2010-09-04 4:39 ` Nicolas Pitre
2010-09-04 5:42 ` Artur Skawina
2010-09-04 6:13 ` Nicolas Pitre
2010-09-04 11:58 ` Luke Kenneth Casson Leighton
2010-09-04 13:14 ` Luke Kenneth Casson Leighton
2010-09-05 2:16 ` Nicolas Pitre
2010-09-05 18:05 ` Luke Kenneth Casson Leighton
2010-09-05 23:52 ` Nicolas Pitre
2010-09-06 13:23 ` Luke Kenneth Casson Leighton
2010-09-06 16:51 ` Nicolas Pitre
2010-09-06 22:33 ` Luke Kenneth Casson Leighton
2010-09-06 23:34 ` Junio C Hamano
2010-09-06 23:57 ` Nicolas Pitre
2010-09-07 0:17 ` Luke Kenneth Casson Leighton
2010-09-07 0:29 ` Luke Kenneth Casson Leighton
2010-09-04 13:42 ` Artur Skawina
[not found] ` <20100904155638.GA17606@pcpool00.mathematik.uni-freiburg.de>
2010-09-04 17:23 ` Artur Skawina
2010-09-04 18:46 ` Artur Skawina
2010-09-04 1:57 ` Theodore Tso
2010-09-04 5:23 ` Kyle Moffett
2010-09-04 11:46 ` Theodore Tso
2010-09-04 14:06 ` Luke Kenneth Casson Leighton
2010-09-05 1:32 ` Nicolas Pitre
2010-09-05 17:16 ` Luke Kenneth Casson Leighton
2010-09-04 5:40 ` Nicolas Pitre
2010-09-04 12:00 ` Theodore Tso
2010-09-04 12:44 ` Luke Kenneth Casson Leighton
2010-09-04 14:50 ` Luke Kenneth Casson Leighton
2010-09-04 18:14 ` Ted Ts'o
2010-09-04 20:00 ` Luke Kenneth Casson Leighton
2010-09-04 22:41 ` Ted Ts'o
2010-09-05 17:22 ` Luke Kenneth Casson Leighton
2010-09-04 20:20 ` Jakub Narebski
2010-09-04 20:47 ` Luke Kenneth Casson Leighton
2010-09-04 21:16 ` Jakub Narebski
2010-09-04 21:24 ` Luke Kenneth Casson Leighton
2010-09-04 22:47 ` Ted Ts'o
2010-09-05 1:43 ` Tomas Carnecky
2010-09-05 1:18 ` Nicolas Pitre
2010-09-05 17:25 ` Luke Kenneth Casson Leighton
2010-09-06 0:05 ` Nicolas Pitre
2010-09-04 12:33 ` Luke Kenneth Casson Leighton
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