Update Unicorn config

config/unicorn.rb

@@ -1,10 +1,34 @@
-app_path = "/web_apps/rails_pet_clinic"
+app_path = "/web_apps/rails_pet_clinic/"
 
 working_directory app_path
 listen "/tmp/rails_pet_clinic.socket", :backlog => 64
 user 'www-data', 'www-data'
 
 worker_processes 3
-pid "/tmp/unicorn.pid"
-stdout_path ="#{app_path}/log/unicorn.stdout.log"
-stderr_path ="#{app_path}/log/unicorn.stderr.log"
+
+
+stderr_path "#{app_path}/log/unicorn.stderr.log"
+stdout_path "#{app_path}/log/unicorn.stdout.log"
+
+pid "#{app_path}/pids/unicorn.pid"
+stdout_path ="/tmp/unicorn.stdout.log"
+stderr_path ="/tmp/unicorn.stderr.log"
+
+
+preload_app true
+timeout 30
+
+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!
+end
+
+after_fork do |server, worker|
+# Here we are establishing the connection after forking worker
+# processes
+  defined?(ActiveRecord::Base) and
+    ActiveRecord::Base.establish_connection
+end