Initial import

1 files changed, 114 insertions, 0 deletions

diff --git a/unicorn.conf.rb b/unicorn.conf.rb
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+# enable out of band gc out of the box, it is low risk and improves perf a lot
+ENV['UNICORN_ENABLE_OOBGC'] ||= "1"
+
+# 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 2
+
+# Since Unicorn is never exposed to outside clients, it does not need to
+# run on the standard HTTP port (80), there is no reason to start Unicorn
+# as root unless it's from system init scripts.
+# If running the master process as root and the workers as an unprivileged
+# user, do this to switch euid/egid in the workers (also chowns logs):
+# user "unprivileged_user", "unprivileged_group"
+
+# Help ensure your application will always spawn in the symlinked
+# "current" directory that Capistrano sets up
+working_directory '/usr/share/webapps/discourse' # available in 0.94.0+
+
+# Listen on both a Unix domain socket and a TCP port.
+# If you are load-balancing multiple Unicorn masters, lower the backlog
+# setting to e.g. 64 for faster failover.
+#listen "/var/run/discourse/discourse.socket", :backlog => 1024
+listen "127.0.0.1:9737", :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 '/run/discourse/unicorn.pid'
+
+# By default, the Unicorn logger will write to stderr.
+# Additionally, some applications/frameworks log to stderr or stdout,
+# so prevent them from going to /dev/null when daemonized here:
+stderr_path '/var/log/discourse/unicorn.stderr.log'
+stdout_path '/var/log/discourse/unicorn.stdout.log'
+
+# combine Ruby 2.0.0dev or REE with "preload_app true" for memory savings
+# http://rubyenterpriseedition.com/faq.html#adapt_apps_for_cow
+preload_app true
+
+# If 'UNICORN_ENABLE_OOBGC' is unset let's use GC.copy_on_write_friendly = true.
+# http://unicorn.bogomips.org/Unicorn/Configurator.html
+unless ENV['UNICORN_ENABLE_OOBGC']
+  GC.respond_to?(:copy_on_write_friendly=) and
+    GC.copy_on_write_friendly = true
+end
+
+# Enable this flag to have unicorn test client connections by writing the
+# beginning of the HTTP headers before calling the application.  This
+# prevents calling the application for connections that have disconnected
+# while queued.  This is only guaranteed to detect clients on the same
+# host unicorn runs on, and unlikely to detect disconnects even on a
+# fast LAN.
+check_client_connection false
+
+# local variable to guard against running a hook multiple times
+run_once = true
+
+before_fork do |server, worker|
+  # Occasionally, it may be necessary to run non-idempotent code in the
+  # master before forking.  Keep in mind the above disconnect! example
+  # is idempotent and does not need a guard.
+  if run_once
+    # load up the yaml for the localization bits, in master process
+    I18n.t(:posts)
+
+    # load up all models and schema
+    (ActiveRecord::Base.connection.tables - %w[schema_migrations]).each do |table|
+      table.classify.constantize.first rescue nil
+    end
+
+    # router warm up
+    Rails.application.routes.recognize_path('abc') rescue nil
+
+    # get rid of rubbish so we don't share it
+    GC.start
+
+    run_once = false # prevent from firing again
+  end
+
+  # 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!
+  $redis.client.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"
+  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
+
+  # Throttle the master from forking too quickly by sleeping.  Due
+  # to the implementation of standard Unix signal handlers, this
+  # helps (but does not completely) prevent identical, repeated signals
+  # from being lost when the receiving process is busy.
+  sleep 1
+end
+
+after_fork do |server, worker|
+  Discourse.after_fork
+end