better process handling

1 files changed, 21 insertions, 22 deletions

diff --git a/config/unicorn.rb b/config/unicorn.rb
index d379569..8157562 100644
--- a/config/unicorn.rb
+++ b/config/unicorn.rb
@@ -1,35 +1,34 @@
-worker_processes 2
-working_directory "/opt/GS5/"
+APP_ROOT = File.expand_path(File.dirname(File.dirname(__FILE__)))
+
+worker_processes 1
+working_directory APP_ROOT
 
-# This loads the application in the master process before forking
-# worker processes
-# Read more about it here:
-# http://unicorn.bogomips.org/Unicorn/Configurator.html
 preload_app true
 
 timeout 30
 
-# This is where we specify the socket.
-# We will point the upstream Nginx module to this socket later on
-listen "/opt/GS5/tmp/sockets/unicorn.sock", :backlog => 64
+listen APP_ROOT + "/tmp/sockets/unicorn.sock", :backlog => 64
 
-pid "/opt/GS5/tmp/pids/unicorn.pid"
+pid APP_ROOT + "/tmp/pids/unicorn.pid"
 
-# Set the path of the log files inside the log folder of the testapp
-stderr_path "/opt/GS5/log/unicorn.stderr.log"
-stdout_path "/opt/GS5/log/unicorn.stdout.log"
+stderr_path APP_ROOT + "/log/unicorn.stderr.log"
+stdout_path APP_ROOT + "/log/unicorn.stdout.log"
 
 before_fork do |server, worker|
-# This option works in together with preload_app true setting
-# What is does is prevent the master process from holding
-# the database connection
-  defined?(ActiveRecord::Base) and
-    ActiveRecord::Base.connection.disconnect!
+  defined?(ActiveRecord::Base) && ActiveRecord::Base.connection.disconnect!
+
+  old_pid = Rails.root + '/tmp/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
+      puts "Old master alerady dead"
+    end
+  end
 end
 
 after_fork do |server, worker|
-# Here we are establishing the connection after forking worker
-# processes
-  defined?(ActiveRecord::Base) and
-    ActiveRecord::Base.establish_connection
+  defined?(ActiveRecord::Base) && ActiveRecord::Base.establish_connection
+  child_pid = server.config[:pid].sub('.pid', ".#{worker.nr}.pid")
+  system("echo #{Process.pid} > #{child_pid}")
 end