Commit f391c7905643844778afa31d0d92f66412c54c18
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Merge pull request #777 from errbit/default_unicorn_config
move unicorn.rb to unicorn.default.rb
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Procfile
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1 | +# http://michaelvanrooijen.com/articles/2011/06/01-more-concurrency-on-a-single-heroku-dyno-with-the-new-celadon-cedar-stack/ | |
2 | + | |
3 | +worker_processes 3 # amount of unicorn workers to spin up | |
4 | +timeout 30 # restarts workers that hang for 30 seconds | |
5 | +preload_app true | |
6 | + | |
7 | +# Taken from github: https://github.com/blog/517-unicorn | |
8 | +# Though everyone uses pretty miuch the same code | |
9 | +before_fork do |server, worker| | |
10 | + ## | |
11 | + # When sent a USR2, Unicorn will suffix its pidfile with .oldbin and | |
12 | + # immediately start loading up a new version of itself (loaded with a new | |
13 | + # version of our app). When this new Unicorn is completely loaded | |
14 | + # it will begin spawning workers. The first worker spawned will check to | |
15 | + # see if an .oldbin pidfile exists. If so, this means we've just booted up | |
16 | + # a new Unicorn and need to tell the old one that it can now die. To do so | |
17 | + # we send it a QUIT. | |
18 | + # | |
19 | + # Using this method we get 0 downtime deploys. | |
20 | + | |
21 | + old_pid = "#{server.config[:pid]}.oldbin" | |
22 | + if File.exists?(old_pid) && server.pid != old_pid | |
23 | + begin | |
24 | + Process.kill("QUIT", File.read(old_pid).to_i) | |
25 | + rescue Errno::ENOENT, Errno::ESRCH | |
26 | + # someone else did our job for us | |
27 | + end | |
28 | + end | |
29 | +end | ... | ... |
config/unicorn.rb
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1 | -# http://michaelvanrooijen.com/articles/2011/06/01-more-concurrency-on-a-single-heroku-dyno-with-the-new-celadon-cedar-stack/ | |
2 | - | |
3 | -worker_processes 3 # amount of unicorn workers to spin up | |
4 | -timeout 30 # restarts workers that hang for 30 seconds | |
5 | -preload_app true | |
6 | - | |
7 | -# Taken from github: https://github.com/blog/517-unicorn | |
8 | -# Though everyone uses pretty miuch the same code | |
9 | -before_fork do |server, worker| | |
10 | - ## | |
11 | - # When sent a USR2, Unicorn will suffix its pidfile with .oldbin and | |
12 | - # immediately start loading up a new version of itself (loaded with a new | |
13 | - # version of our app). When this new Unicorn is completely loaded | |
14 | - # it will begin spawning workers. The first worker spawned will check to | |
15 | - # see if an .oldbin pidfile exists. If so, this means we've just booted up | |
16 | - # a new Unicorn and need to tell the old one that it can now die. To do so | |
17 | - # we send it a QUIT. | |
18 | - # | |
19 | - # Using this method we get 0 downtime deploys. | |
20 | - | |
21 | - old_pid = "#{server.config[:pid]}.oldbin" | |
22 | - if File.exists?(old_pid) && server.pid != old_pid | |
23 | - begin | |
24 | - Process.kill("QUIT", File.read(old_pid).to_i) | |
25 | - rescue Errno::ENOENT, Errno::ESRCH | |
26 | - # someone else did our job for us | |
27 | - end | |
28 | - end | |
29 | -end |