606261e8e7
We want to call master_restart callback on start too - this callback is used for cleaning up prometheus files. It has been added to Omnibus already: https://gitlab.com/gitlab-org/omnibus-gitlab/merge_requests/3350 So make sure that Unicorn example configs are up-to-date and that the same callback is called for Puma too.
72 lines
2.5 KiB
Text
72 lines
2.5 KiB
Text
# frozen_string_literal: true
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# -------------------------------------------------------------------------
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# This file is used by the GDK to generate a default config/unicorn.rb file
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# Note that `/home/git` will be substituted for the actual GDK root
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# directory when this file is generated
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# -------------------------------------------------------------------------
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worker_processes 2
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timeout 60
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listen '/home/git/gitlab.socket'
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preload_app true
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check_client_connection false
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require_relative "/home/git/gitlab/lib/gitlab/cluster/lifecycle_events"
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before_exec do |server|
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# Signal application hooks that we're about to restart
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Gitlab::Cluster::LifecycleEvents.do_master_restart
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end
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run_once = true
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before_fork do |server, worker|
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if run_once
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# There is a difference between Puma and Unicorn:
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# - Puma calls before_fork once when booting up master process
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# - Unicorn runs before_fork whenever new work is spawned
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# To unify this behavior we call before_fork only once (we use
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# this callback for deleting Prometheus files so for our purposes
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# it makes sense to align behavior with Puma)
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run_once = false
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# Signal application hooks that we're about to fork
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Gitlab::Cluster::LifecycleEvents.do_before_fork
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end
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# The following is only recommended for memory/DB-constrained
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# installations. It is not needed if your system can house
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# twice as many worker_processes as you have configured.
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#
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# This allows a new master process to incrementally
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# phase out the old master process with SIGTTOU to avoid a
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# thundering herd (especially in the "preload_app false" case)
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# when doing a transparent upgrade. The last worker spawned
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# will then kill off the old master process with a SIGQUIT.
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old_pid = "#{server.config[:pid]}.oldbin"
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if old_pid != server.pid
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begin
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sig = (worker.nr + 1) >= server.worker_processes ? :QUIT : :TTOU
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Process.kill(sig, File.read(old_pid).to_i)
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rescue Errno::ENOENT, Errno::ESRCH
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end
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end
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#
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# Throttle the master from forking too quickly by sleeping. Due
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# to the implementation of standard Unix signal handlers, this
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# helps (but does not completely) prevent identical, repeated signals
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# from being lost when the receiving process is busy.
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# sleep 1
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end
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after_fork do |server, worker|
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# Signal application hooks of worker start
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Gitlab::Cluster::LifecycleEvents.do_worker_start
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# per-process listener ports for debugging/admin/migrations
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# addr = "127.0.0.1:#{9293 + worker.nr}"
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# server.listen(addr, :tries => -1, :delay => 5, :tcp_nopush => true)
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end
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