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authorTobias Pfeiffer <tobias.pfeiffer@student.hpi.uni-potsdam.de>2012-09-15 20:26:08 +0200
committerTobias Pfeiffer <tobias.pfeiffer@student.hpi.uni-potsdam.de>2012-09-15 20:26:08 +0200
commit74cfab692fd9808c1ea6a6cc6f45c348deb4fd72 (patch)
treea3236ae4595b2109edd40dc22505a87853c1a937 /config/unicorn.rb.example
parent0546b9c65f33757dee6e7d0a6f85eb2bdb33453d (diff)
downloadgitlab-ce-74cfab692fd9808c1ea6a6cc6f45c348deb4fd72.tar.gz
Renamed unicorn.rb.orig to unicorn.rb.example since this seems to be more in line with the common used naming in the config directory. Plus seeing *.orig files I think of the leftovers of git merges, which left me puzzled for quite some time.
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diff --git a/config/unicorn.rb.example b/config/unicorn.rb.example
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+app_dir = "/home/gitlab/gitlab/"
+worker_processes 2
+working_directory app_dir
+
+# Load app into the master before forking workers for super-fast
+# worker spawn times
+preload_app true
+
+# nuke workers after 60 seconds (the default)
+timeout 30
+
+# listen on a Unix domain socket and/or a TCP port,
+
+#listen 8080 # listen to port 8080 on all TCP interfaces
+#listen "127.0.0.1:8080" # listen to port 8080 on the loopback interface
+listen "#{app_dir}/tmp/sockets/gitlab.socket"
+
+pid "#{app_dir}/tmp/pids/unicorn.pid"
+stderr_path "#{app_dir}/log/unicorn.stderr.log"
+stdout_path "#{app_dir}/log/unicorn.stdout.log"
+
+# http://www.rubyenterpriseedition.com/faq.html#adapt_apps_for_cow
+if GC.respond_to?(:copy_on_write_friendly=)
+ GC.copy_on_write_friendly = true
+end
+
+
+before_fork do |server, worker|
+ # the following is highly recomended for Rails + "preload_app true"
+ # as there's no need for the master process to hold a connection
+ defined?(ActiveRecord::Base) and ActiveRecord::Base.connection.disconnect!
+
+ ##
+ # When sent a USR2, Unicorn will suffix its pidfile with .oldbin and
+ # immediately start loading up a new version of itself (loaded with a new
+ # version of our app). When this new Unicorn is completely loaded
+ # it will begin spawning workers. The first worker spawned will check to
+ # see if an .oldbin pidfile exists. If so, this means we've just booted up
+ # a new Unicorn and need to tell the old one that it can now die. To do so
+ # we send it a QUIT.
+ #
+ # Using this method we get 0 downtime deploys.
+
+ old_pid = "#{server.config[:pid]}.oldbin"
+
+ if File.exists?(old_pid) && server.pid != old_pid
+ begin
+ sig = (worker.nr + 1) >= server.worker_processes ? :QUIT : :TTOU
+ Process.kill(sig, 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|
+ # Unicorn master loads the app then forks off workers - because of the way
+ # Unix forking works, we need to make sure we aren't using any of the parent's
+ # sockets, e.g. db connection
+
+ defined?(ActiveRecord::Base) and ActiveRecord::Base.establish_connection
+ # Redis and Memcached would go here but their connections are established
+ # on demand, so the master never opens a socket
+end