Hi Eric, we've run into an issue with Unicorn's reexec, when the rails app is using Bundler and we deploy into dated release directories. Still not sure what the correct fix is for this, but what happens is that bundler modifies (acutally prefixes) PATH/RUBYOPT and when you reexec unicorn these are passed along to the new master process - and Bundler will again append to the PATH/RUBYOBT.
This becomes more of a problem when you deploy with capistrano and include SIGUSR2 restart of your unicorn. And effectively it will attempt to load all Bundler vendor/bundler_gems/environment.rb for all deploys since unicorn was first started - and if you have, say, a keep only 5 releases strategy, you will soon get failures when a bundler environment.rb file in RUBYOPT has been shifted out. I'm still not sure what the right solution is (to modify unicorn, the unicorn.rb config file or to address it in bundler), but the following patch does it brute force in unicorn and introduce the assumption that a reexec should take the same PATH/RUBYOPT variables as the initial invokation of the unicorn process (using a similar strategy as with PWD): >From 3d6ca163723148668d69115ebaf00cb814db8f49 Mon Sep 17 00:00:00 2001 From: skaar <sk...@waste.org> Date: Sat, 2 Jan 2010 12:29:38 -0500 Subject: [PATCH] filter PATH/RUBYOPT when rexec, and give new master same values as the original master process --- lib/unicorn.rb | 4 ++++ 1 files changed, 4 insertions(+), 0 deletions(-) diff --git a/lib/unicorn.rb b/lib/unicorn.rb index 225e00a..6b3e334 100644 --- a/lib/unicorn.rb +++ b/lib/unicorn.rb @@ -111,6 +111,8 @@ module Unicorn Dir.pwd end }.call, + :path => ENV['PATH'], + :rybyopt => ENV['RUBYOPT'], 0 => $0.dup, } @@ -488,6 +490,8 @@ module Unicorn self.reexec_pid = fork do listener_fds = LISTENERS.map { |sock| sock.fileno } ENV['UNICORN_FD'] = listener_fds.join(',') + ENV['PATH'] = START_CTX[:path] + ENV['RUBYOPT'] = START_CTX[:rubyopt] Dir.chdir(START_CTX[:cwd]) cmd = [ START_CTX[0] ].concat(START_CTX[:argv]) -- 1.6.6.rc3 -- /skaar sk...@waste.org where in the W.A.S.T.E is the wisdom s_u_b_s_t_r_u_c_t_i_o_n _______________________________________________ Unicorn mailing list - mongrel-unicorn@rubyforge.org http://rubyforge.org/mailman/listinfo/mongrel-unicorn Do not quote signatures (like this one) or top post when replying