From 3f04ede6458edfc526b564b6e1bfb8129d63b1f3 Mon Sep 17 00:00:00 2001
From: Seven Du <dujinfang@gmail.com>
Date: Sun, 16 Jan 2011 13:44:29 +0800
Subject: [PATCH] add unicorn config

---
 config/unicorn.rb | 88 +++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 88 insertions(+)
 create mode 100644 config/unicorn.rb

diff --git a/config/unicorn.rb b/config/unicorn.rb
new file mode 100644
index 0000000..cdcda23
--- /dev/null
+++ b/config/unicorn.rb
@@ -0,0 +1,88 @@
+# Sample configuration file for Unicorn (not Rack)
+#
+# See http://unicorn.bogomips.org/Unicorn/Configurator.html for complete
+# documentation.
+SINATRA_ROOT = `pwd`.strip
+
+# Use at least one worker per core if you're on a dedicated server,
+# more will usually help for _short_ waits on databases/caches.
+worker_processes 3
+
+# Help ensure your application will always spawn in the symlinked
+# "current" directory that Capistrano sets up.
+working_directory SINATRA_ROOT # available in 0.94.0+
+
+# listen on both a Unix domain socket and a TCP port,
+# we use a shorter backlog for quicker failover when busy
+# listen "/tmp/.sock", :backlog => 64
+listen 18889, :tcp_nopush => true
+
+# nuke workers after 30 seconds instead of 60 seconds (the default)
+timeout 30
+
+# feel free to point this anywhere accessible on the filesystem
+
+pid "#{SINATRA_ROOT}/tmp/pids/unicorn.pid"
+
+# relative_path "/test_platform"
+# some applications/frameworks log to stderr or stdout, so prevent
+# them from going to /dev/null when daemonized here:
+stderr_path "#{SINATRA_ROOT}/log/unicorn.stderr.log"
+stdout_path "#{SINATRA_ROOT}/log/unicorn.stdout.log"
+
+# combine REE with "preload_app true" for memory savings
+# http://rubyenterpriseedition.com/faq.html#adapt_apps_for_cow
+preload_app false
+GC.respond_to?(:copy_on_write_friendly=) and
+  GC.copy_on_write_friendly = true
+
+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!
+
+  # The following is only recommended for memory/DB-constrained
+  # installations.  It is not needed if your system can house
+  # twice as many worker_processes as you have configured.
+  #
+  # # This allows a new master process to incrementally
+  # # phase out the old master process with SIGTTOU to avoid a
+  # # thundering herd (especially in the "preload_app false" case)
+  # # when doing a transparent upgrade.  The last worker spawned
+  # # will then kill off the old master process with a SIGQUIT.
+  old_pid = "#{server.config[:pid]}.oldbin"
+  
+  puts 'pid:'
+  puts '-------------------'
+  puts server.pid
+  puts old_pid
+  puts '---------------------'
+  
+  if old_pid != server.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
+    end
+  end
+  #
+  # # *optionally* throttle the master from forking too quickly by sleeping
+  sleep 1
+end
+
+after_fork do |server, worker|
+  # per-process listener ports for debugging/admin/migrations
+  # addr = "127.0.0.1:#{9293 + worker.nr}"
+  # server.listen(addr, :tries => -1, :delay => 5, :tcp_nopush => true)
+
+  # the following is *required* for Rails + "preload_app true",
+  # defined?(ActiveRecord::Base) and
+  #   ActiveRecord::Base.establish_connection
+
+  # if preload_app is true, then you may also want to check and
+  # restart any other shared sockets/descriptors such as Memcached,
+  # and Redis.  TokyoCabinet file handles are safe to reuse
+  # between any number of forked children (assuming your kernel
+  # correctly implements pread()/pwrite() system calls)
+end
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