See the before_exec in http://gist.github.com/534668
Cheers,
Lawrence
On Sep 9, 2010, at 4:28 PM, Eirik Dentz Sinclair wrote:
First off thanks very much for all the hard work on unicorn. Alas, we've
encountered an issue where unicorn fails to spawn new workers that have loaded
the incoming revision on a capistrano deploy. I'm not entirely sure the issue
is due to unicorn as it appears that bundler was responsible for a similar
issue in the past:
http://github.com/carlhuda/bundler/issues/issue/259/#comment_180830
But presumably bundler has corrected that issue and any help in sorting out the
issue would be greatly appreciated.
[snip]
The deployed versioned directory is 20100830230613
The incoming versioned directory is 20100902192111
I think I may have run into a potentially related bundler+unicorn+capistrano
issue just today!
With bundler+unicorn the shell environment does not really get cleared between
USR2 restarts/forkings, which was the cause of the aforementioned GitHub
ticket... PATH/RUBYOPT would just get infinitely appended to by bundler, and
unicorn is happy to let you do whatever with the environment
The bug I found today cropped up while upgrading from rails 2.3.8 to rails 2.3.9 -- on
deploy the new unicorn master would die with "hey you've already loaded rails
2.3.8!". Weird.
Some quick debugging showed my BUNDLE_GEMFILE environment variable was
referencing a Gemfile from a (very) old capistrano release.... I'm actively
debugging it now. I'm also using preload_app=true which might have contributed.
Eirik, can you confirm any similar "old release" weirdnesses by dumping the ENV
in your unicorn.rb's before_exec / before_fork?
STDERR.puts ENV.inspect
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