[LINK] Facebook uses BitTorrent to distribute updates

[Jan Whitaker]

http://arstechnica.com/business/news/2012/04/exclusive-a-behind-the-scenes-look-at-facebook-release-engineering.ars

I don't think they are using the public network 
BT, but a closed system to update their own servers.

"
Rossi explained that Facebook created its own 
custom BitTorrent tracker, which is designed so 
that individual servers in Facebook's 
infrastructure will try to obtain slices from 
other servers that are on the same node or rack, thus reducing total latency.

Rolling out a Facebook update takes an average of 
30 minutes­15 minutes to generate the binary 
executable and another 15 minutes to push the 
executable to most of Facebook's servers via BitTorrent.
"

Jan


Melbourne, Victoria, Australia
jwhit at janwhitaker.com
blog: http://janwhitaker.com/jansblog/
business: http://www.janwhitaker.com

Our truest response to the irrationality of the 
world is to paint or sing or write, for only in such response do we find truth.
~Madeline L'Engle, writer

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