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added unicorn config

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commit 04da3ed0fb0d81e944f9b66f06a4c1e40b480a8f 1 parent ba8fc4e
dmitry authored
Showing with 87 additions and 0 deletions.
  1. +87 −0 config/unicorn.rb
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87 config/unicorn.rb
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+# Sample verbose configuration file for Unicorn (not Rack)
+#
+# This configuration file documents many features of Unicorn
+# that may not be needed for some applications. See
+# http://unicorn.bogomips.org/examples/unicorn.conf.minimal.rb
+# for a much simpler configuration file.
+#
+# See http://unicorn.bogomips.org/Unicorn/Configurator.html for complete
+# documentation.
+
+# 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 4
+
+# Help ensure your application will always spawn in the symlinked
+# "current" directory that Capistrano sets up.
+working_directory "/u/apps/echowaves/current" # 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 8080, :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 "/u/apps/echowaves/shared/pids/unicorn.pid"
+
+# By default, the Unicorn logger will write to stderr.
+# Additionally, ome applications/frameworks log to stderr or stdout,
+# so prevent them from going to /dev/null when daemonized here:
+stderr_path "/u/apps/echowaves/shared/log/unicorn.stderr.log"
+stdout_path "/u/apps/echowaves/shared/log/unicorn.stdout.log"
+
+# combine REE with "preload_app true" for memory savings
+# http://rubyenterpriseedition.com/faq.html#adapt_apps_for_cow
+preload_app true
+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"
+ # 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|
+ # 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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