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30 lines
963 B
Ruby
30 lines
963 B
Ruby
# this is a trivial graceful restart on touch of tmp/restart.
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#
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# It simply drains all the requests (waits up to 4 seconds) and issues a HUP
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# if you need a more sophisticated cycling restart for multiple thins it will need to be written
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#
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# This works fine for Discourse.org cause we host our app accross multiple machines, if you hosting
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# on a single machine you have a trickier problem at hand as you need to cycle the processes in order
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Thread.new do
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file = "#{Rails.root}/tmp/restart"
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old_time = File.ctime(file).to_i if File.exists? file
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wait_seconds = 4
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return if $PROGRAM_NAME !~ /thin/
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while true
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time = File.ctime(file).to_i if File.exists? file
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if old_time != time
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Rails.logger.info "attempting to reload #{$$} #{$PROGRAM_NAME} in #{wait_seconds} seconds"
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$shutdown = true
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sleep wait_seconds
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Rails.logger.info "restarting #{$$}"
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Process.kill("HUP", $$)
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return
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end
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sleep 1
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end
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end
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