You are not logged in.

#1 2013-05-15 02:52:06

onny
Member
From: Europe
Registered: 2010-08-07
Posts: 39
Website

p2pacman - Bittorrent powered pacman wrapper

Hey,
I read a lot about ideas regarding p2p support for pacman here in the forum, but I couldn't find any appropriate implementation yet. So I hacked together a quick POC (really bad code quality, a lot of hardcoded settings at this time) which might demonstrate the usefulness of such a feature:

1) p2pacman: Client program which synchronises the package db and performs a full system upgrade (equivalent to -Syu) while downloading every single package via torrent simultaneously. If there aren't enough peers or seeders the program fallbacks to normal direct download for the specific package. Note: For testing purpose I didn't included any webseeds yet, so a peer is required which already performed the same upgrade and therefore is seeding the same packages.

2) p2pacmand: Should be started via systemd, runs as a daemon and rescans the package cache for torrent files. All available packages will be seeded (local network and internet).

3) p2pacman-server: Creates a mirror for the ArchLinux repository and in addition to that generates info hashes for opentracker and torrent files.

If you want to test it, be sure you use a mirror which already offers torrent files in the format of: "package_xy.pkg.xz.torrent", e.g. add this to /etc/pacman.d/mirrorlist:

Server = http://mirror.project-insanity.org/$repo/os/$arch

AUR Link: https://aur.archlinux.org/packages/p2pacman-git/

Example usage:

[root@mail-pub ~]# p2pacman
:: Synchronizing package databases...
 testing is up to date
 core is up to date
 extra is up to date
 community-testing is up to date
 community is up to date
:: Starting full system upgrade...
downloading torrent metadata ...
Loading torrent file in thread
Loading torrent file in thread
starting torrents ...
downloading 2 package(s):
 - amule-10802-2-x86_64.pkg.tar.xz: 0.00% complete (down: 0.0 kb/s up: 0.1 kB/s peers: 0)
 - htop-1.0.2-2-x86_64.pkg.tar.xz: 100.00% complete (down: 4.9 kb/s up: 0.4 kB/s peers: 0)
downloading 1 package(s):
 - amule-10802-2-x86_64.pkg.tar.xz: 0.00% complete (down: 0.0 kb/s up: 0.0 kB/s peers: 0)
timeout reached, skipping torrent. idle time: 60
starting manual direct download of: amule-10802-2-x86_64.pkg.tar.xz
all downloads finished!
installing packages ...
loading packages...
resolving dependencies...
looking for inter-conflicts...

Packages (2): amule-10802-2  htop-1.0.2-2

Total Installed Size:   20.06 MiB
Net Upgrade Size:       0.31 MiB

:: Proceed with installation? [Y/n] Y
(2/2) checking keys in keyring                                               [###########################################] 100%
(2/2) checking package integrity                                             [###########################################] 100%
(2/2) loading package files                                                  [###########################################] 100%
(2/2) checking for file conflicts                                            [###########################################] 100%
(2/2) checking available disk space                                          [###########################################] 100%
(1/2) upgrading amule                                                        [###########################################] 100%
(2/2) upgrading htop                                                         [###########################################] 100%
New optional dependencies for htop
    lsof: show files opened by a process
    strace: attach to a running process

Disclaimer: Please note that at least the client requires root permissions for package operations and the code is definitely not safe, so this could be a security risk and harm your system. I'm not responsible for any damage, test it at your own risk.

Note: Unfortunately libtorrent bindings for python3 works, at least for me, only on x64 systems. Hope this bug will be soon resolved.

Feedback and contributions welcome smile

Last edited by onny (2013-05-15 02:53:11)

Offline

#2 2013-05-30 19:23:40

robotanarchy
Member
Registered: 2012-09-03
Posts: 17

Re: p2pacman - Bittorrent powered pacman wrapper

This looks very interesting. We might try it in our local hacker space, where we have a rather bad internet connection, but 3 arch users that could exchange packages that way easily.

Is it possible to limit seeding to LAN?

EDIT: would these machines then discover each other automagically in the LAN or would we need some kind of tracker?

Last edited by robotanarchy (2013-05-30 19:26:14)

Offline

#3 2013-05-30 19:28:14

HalosGhost
Member
From: Twin Cities, MN
Registered: 2012-06-22
Posts: 1,486
Website

Re: p2pacman - Bittorrent powered pacman wrapper

Oooh, this is very interesting. P2P support for pacman would be very exciting. I look forward to seeing how this progresses.

All the best,

-HG


"All errors are ᴘᴇʙᴋᴀᴄ errors—It's just a matter of narrowing down which keyboard and chair." -Trilby
\ldots

Offline

#4 2013-05-30 19:50:11

kdb424
Member
From: Pittsburgh PA, USA
Registered: 2013-05-26
Posts: 17
Website

Re: p2pacman - Bittorrent powered pacman wrapper

Looks interesting. Will test. I'm on an x86 chroot, so I'll give it a run for it's money.

Offline

#5 2014-01-17 04:08:06

hydrosIII
Member
Registered: 2013-04-04
Posts: 127

Re: p2pacman - Bittorrent powered pacman wrapper

Hi, Im trying yo use p2pacman, however the current mirror

http://mirror.project-insanity.org/$repo/os/$arch

seems down, is there another mirror with torrent support???

good project!!

Offline

Board footer

Powered by FluxBB