FIX: run reaper after fork

config/initializers/99-drain_pool.rb

@@ -1,13 +1,2 @@
 # pg performs inconsistently with large amounts of connections
-# this helps keep connection counts in check
-Thread.new do
-  while true
-    sleep 30
-    pools = []
-    ObjectSpace.each_object(ActiveRecord::ConnectionAdapters::ConnectionPool){|pool| pools << pool}
-
-    pools.each do |pool|
-      pool.drain(30.seconds)
-    end
-  end
-end
+Discourse.start_connection_reaper