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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. | ||
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# 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 | ||
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# 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+ | ||
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# 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 | ||
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# nuke workers after 30 seconds instead of 60 seconds (the default) | ||
timeout 30 | ||
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# feel free to point this anywhere accessible on the filesystem | ||
pid "/u/apps/echowaves/shared/pids/unicorn.pid" | ||
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# 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" | ||
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# 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 | ||
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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! | ||
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# 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 | ||
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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) | ||
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# the following is *required* for Rails + "preload_app true", | ||
defined?(ActiveRecord::Base) and | ||
ActiveRecord::Base.establish_connection | ||
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# 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 |