Move unicorn_killer to Gemfile

Gemfile

@@ -9,6 +9,7 @@ gem "responders", "2.1.1"
 # Appserver
 
 gem "unicorn", "5.0.1", require: false
+gem "unicorn-worker-killer", "0.4.4"
 
 # Federation
 

Gemfile.lock

@@ -353,6 +353,7 @@ GEM
     fuubar (2.0.0)
       rspec (~> 3.0)
       ruby-progressbar (~> 1.4)
+    get_process_mem (0.2.0)
     gherkin (3.2.0)
     gitlab (3.4.0)
       httparty
@@ -860,6 +861,9 @@ GEM
       kgio (~> 2.6)
       rack
       raindrops (~> 0.7)
+    unicorn-worker-killer (0.4.4)
+      get_process_mem (~> 0)
+      unicorn (>= 4, < 6)
     url_safe_base64 (0.2.2)
     uuid (2.3.8)
       macaddr (~> 1.0)
@@ -1032,6 +1036,7 @@ DEPENDENCIES
   typhoeus (= 1.0.1)
   uglifier (= 2.7.2)
   unicorn (= 5.0.1)
+  unicorn-worker-killer (= 0.4.4)
   uuid (= 2.3.8)
   versionist (= 1.4.1)
   webmock (= 1.22.6)

config.ru

@@ -5,12 +5,15 @@
 # This file is used by Rack-based servers to start the application.
 
 require ::File.expand_path("../config/environment",  __FILE__)
-require ::File.expand_path("../lib/unicorn_killer",  __FILE__)
 require ::File.expand_path("../lib/rack/internet_explorer_version", __FILE__)
 
 # Kill unicorn workers really aggressively (at 300mb)
 if defined?(Unicorn)
-  use UnicornKiller::Oom, 300 * 1024
+  require "unicorn/worker_killer"
+  oom_min = (280) * (1024**2)
+  oom_max = (300) * (1024**2)
+  # Max memory size (RSS) per worker
+  use Unicorn::WorkerKiller::Oom, oom_min, oom_max
 end
 use Rack::Deflater
 use Rack::InternetExplorerVersion, minimum: 9

lib/unicorn_killer.rb

-# # your config.ru
-# require 'unicorn_killer'
-# use UnicornKiller::MaxRequests, 1000
-# use UnicornKiller::Oom, 400 * 1024
-
-module UnicornKiller
-  module Kill
-    def quit
-      sec = (Time.now - @process_start).to_i
-      warn "#{self.class} send SIGQUIT (pid: #{Process.pid})\talive: #{sec} sec"
-      Process.kill :QUIT, Process.pid 
-    end
-  end 
-
-  class Oom
-    include Kill
-
-    def initialize(app, memory_size= 512 * 1024, check_cycle = 10)
-      @app = app
-      @memory_size = memory_size
-      @check_cycle = check_cycle
-      @check_count = 0
-    end 
-
-    def rss
-      `ps -o rss= -p #{Process.pid}`.to_i
-    end
-
-    def call(env)
-      @process_start ||= Time.now
-      if (@check_count += 1) % @check_cycle == 0
-        @check_count = 0
-        quit if rss > @memory_size
-      end
-      @app.call env
-    end
-  end
-
-  class MaxRequests
-    include Kill
-
-    def initialize(app, max_requests = 1000)
-      @app = app 
-      @max_requests = max_requests
-    end
-
-    def call(env)
-      @process_start ||= Time.now
-      quit if (@max_requests -= 1) == 0
-      @app.call env
-    end
-  end
-end