Velocity 2010: Tom Cook, "A Day in the Life of Facebook Operations"

[sarge8967]

He mentioned 300TB of live-caching in RAM. Solid-state drives or RAID0 of solid-state drives can achieve performance comparable to RAM, thus reduce many times or eliminate the need for caching.

Is MySQL DB on solid-state drives? If not, i.e. old hard-disk drives are used, a lot of RAM caching might be required.

-- Sarge Rogatch

[boocay]

Ye gods, cfengine!

[TurboThaddeus]

Deploying a multi-hundred meg code payload to tens of thousands of servers in a minute using bittorrent. Brilliant and jaw dropping.

[OpenComments]

@TurboThaddeus

Freedom of religion does not mean freedom to commit crimes in the name of religion. The abuses, corruption, embezzlement, extortion, blackmail and the mind-control practices of Scientology have to be stopped for the sake of all humanity. People have died, families across the world are divided by "disconnection." David Miscavige has mobilized numerous private investigators and spent some $10 million already to discredit, harass and silence key whistle blowers.

[mathieupoussin]

What kind of server hardware are they using ? I've heard of SGI Rackable Systems (also the ones on some of the photos), but I'm not sure...

[Nater245689]

@mathieupoussin Yeah, they bought a lot of servers from Rackable (now SGI) back a few years ago, I think. I believe that now they're buying custom stuff from Dell. Dell has a custom design service for very large customers (Facebook, Yahoo, Microsoft) who want large numbers of low-power, barebones servers.

[york2600]

@mathieupoussin A lot of those screen shots are HP gear. There's a closeup of some HP blades and then a further out shot of what looks like HP DL180s

[st3reo23]

@york2600 yeah but I think those were just random pictures from the internet...he had a lot of those in his presentation...don't think they were actual pictures of facebook hardware

[nsilkey]

cfengine ftw.  <3

[andref82]

did he said they have an exchange server :|

[Dieterbe]

@andref82 indeed he did. at 25:58. wtf...

[pamnesiac]

aww tom, you go man!

[mobythedictator]

13:54: Facebook uses Bittorent!

[shikibiomernok]

Sad thing there is no 720/1080p. :/

[gian0pa]

@shikibiomernok i agree but imagine uploading 720p video which runs for 40 mins for over 15 videos. that would take lot's of time even with a great connection

[cookiedianne]

great..i just back from a CoE in scotland...about cybercrime and forensics and also the use of facebook...i found this video quite interesting thanks for that :))

[TheRothNetwork]

Excellent