[wpkg-users] wpkg software deployment using bittorrent

[Rob Bos]

I have been using bittorrent extensively with WPKG lately with some good 
results. It works reasonably well, taking between 30 and 60% of the load 
off the central server.

We set up a torrent server mounting, via CIFS, the software share, and 
generated torrent files and a tracker. The central server spins up 4 
seed instances for each hosted torrent, and waits for clients to 
connect. The kernel version shipping with RHEL6 doesn't implement 
fscache very well with CIFS though, so that part is a work in progress.

In the WPKG, I created a batch file that starts the download via a 
portable aria2c windows binary, and then when the download is finishes, 
spawns a seed instance set to seed for ten minutes off the local copy.

The results have been quite positive.  Here's some stats from our last 
imaging run a few days ago.  Robocopy transferred 112GiB at about 
5.12MiB/sec, torrent managed 396GiB at about 5.94MiB/sec with a lower 
standard deviation and 156GiB of peered data.  I don't believe my 
coworker imaged more than 5-6 machines at a time, though; the numbers 
get better the more are involved.

torrent average: 5.94 stddev: 1.72 median: 5.6
total torrent transfer: 396760 MiB; total peered data: 146916 MiB
incomplete or terminated torrents: 0
robocopy average: 5.12 stddev: 3.56 median: 4.49
total robocopy transfer: 112931 MiB


On 7/8/2013 3:23 PM, Carlos R. Pasqualini wrote:
> Hi list!
>
>
> Has anyone mixed wpkg and bittorrent for the transference of installers
> prior to/during setup?
>
> when the network gets bigger, the load on the backbone gets high when we
> upgrade big packages; using bittorrent i expect to get some load on the
> border switches and less on the backbone using peer to peer transfer
> inside our network.
>
>
>
> best regards
>
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