Autokill Workers which have grown too big

[hukl <hukl@berlin.ccc.de>]

Hey,


at Euruko 2010 I saw a presentation where Florian Hanke presented parts 
of a unicorn config which killed workers once they've used up too much 
memory.

The snipped looks like this:

RackResponder = lambda do |env|
   possibly_commit_harakiri ...
end

# Commit Harakiri/Seppuku, kill yourself. #
def possibly_commit_harakiri
   return unless commit_harakiri?
   Process.kill “KILL”, Process.pid
end

Now I couldn't find anything about that RackResponder part on the web 
and was hoping that Florian himself or somebody else on the list could 
clue me in how that works.

Also I'd like to know if there is a way to get the current memory 
footprint of a worker other than something like:

%x(ps -o rss= -p #{Process.pid}).to_i

Kind regards,

John
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