I have a capistrano deployment that seems to be working fine, however after the USR2 signal is sent to the unicorn process it restarts in the old release folder. It is somewhat similar to the problem here:
Restarting Unicorn with USR2 doesn't seem to reload production.rb settings
However, my working_directory is set to a string, I'm not doing anything fancy with it.
My production unicorn config:
worker_processes 4
working_directory "/u/apps/dragonfly-application/current" # available in 0.94.0+
listen "/tmp/.sock", :backlog => 64
timeout 30
pid "/u/apps/dragonfly-application/shared/pids/unicorn.pid"
stderr_path "/u/apps/dragonfly-application/shared/log/unicorn.stderr.log"
stdout_path "/u/apps/dragonfly-application/shared/log/unicorn.stdout.log"
preload_app true
GC.respond_to?(:copy_on_write_friendly=) and
GC.copy_on_write_friendly = true
before_fork do |server, worker|
defined?(ActiveRecord::Base) and
ActiveRecord::Base.connection.disconnect!
old_pid = '/u/apps/dragonfly-application/shared/pids/unicorn.pid.oldbin'
if File.exists?(old_pid) && server.pid != old_pid
begin
Process.kill("QUIT", File.read(old_pid).to_i)
rescue Errno::ENOENT, Errno::ESRCH
# someone else did our job for us
end
end
end
after_fork do |server, worker|
defined?(ActiveRecord::Base) and
ActiveRecord::Base.establish_connection
end
And my capistrano deployment:
set :application, "dragonfly-application"
set :repository, "git@github.com:Rodeoclash/Nile.git"
set :scm, :git
set :user, "user"
set :rvm_ruby_string, "1.9.3@dragonfly-application"
set :bundle_flags, "--deployment --binstubs"
server "202.2.94.221", :app, :web, :db, :primary => true
before 'deploy:setup', 'rvm:install_rvm'
before 'deploy:setup', 'rvm:install_ruby'
after "deploy:finalize_update", "db:config"
after "deploy:restart", "deploy:cleanup" # clean up old releases on each deploy
after "deploy", "deploy:migrate"
after 'deploy:update_code', 'symlink_uploads'
load 'deploy/assets'
namespace :db do
# copy database.yml into location
task :config, :except => { :no_release => true }, :role => :app do
run "cp -f #{shared_path}/config/database.yml #{release_path}/config/database.yml"
end
desc "reload the database with seed data"
task :seed do
run "cd #{current_path}; bundle exec rake db:seed RAILS_ENV=#{rails_env}"
end
end
task :symlink_uploads do
run "ln -nfs #{shared_path}/uploads #{release_path}/public/uploads"
end
require "bundler/capistrano"
require 'capistrano-unicorn'
require "rvm/capistrano"
I'm out of ideas of where to look. If the server is totally stopped then restarted it will use the correct folder, but using the USR2 signal it will not use the correct path in the symlink. It's like it's resolving the symlink when loading the config and not resolving it again until the code has restarted.
I'm using RVM.
