summaryrefslogtreecommitdiff
path: root/config/unicorn.rb.example
blob: 581fde84c9524ed8526f3b7f2e2fb8281d7f5065 (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
# 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.

# Note: If you change this file in a Merge Request, please also create a
# Merge Request on https://gitlab.com/gitlab-org/omnibus-gitlab/merge_requests

# Relative URL support
# WARNING: We recommend using an FQDN to host GitLab in a root path instead
# of using a relative URL.
# Documentation: http://doc.gitlab.com/ce/install/relative_url.html
# Uncomment and customize the following line to run in a non-root path
#
# ENV['RAILS_RELATIVE_URL_ROOT'] = "/gitlab"

# Read about unicorn workers here:
# http://doc.gitlab.com/ee/install/requirements.html#unicorn-workers
#
worker_processes 3

# Since Unicorn is never exposed to outside clients, it does not need to
# run on the standard HTTP port (80), there is no reason to start Unicorn
# as root unless it's from system init scripts.
# If running the master process as root and the workers as an unprivileged
# user, do this to switch euid/egid in the workers (also chowns logs):
# user "unprivileged_user", "unprivileged_group"

# Help ensure your application will always spawn in the symlinked
# "current" directory that Capistrano sets up.
working_directory "/home/git/gitlab" # available in 0.94.0+

# Listen on both a Unix domain socket and a TCP port.
# If you are load-balancing multiple Unicorn masters, lower the backlog
# setting to e.g. 64 for faster failover.
listen "/home/git/gitlab/tmp/sockets/gitlab.socket", :backlog => 1024
listen "127.0.0.1:8080", :tcp_nopush => true

# nuke workers after 30 seconds instead of 60 seconds (the default)
#
# NOTICE: git push over http depends on this value.
# If you want to be able to push huge amount of data to git repository over http
# you will have to increase this value too.
#
# Example of output if you try to push 1GB repo to GitLab over http.
#   -> git push http://gitlab.... master
#
#   error: RPC failed; result=18, HTTP code = 200
#   fatal: The remote end hung up unexpectedly
#   fatal: The remote end hung up unexpectedly
#
# For more information see http://stackoverflow.com/a/21682112/752049
#
timeout 60

# feel free to point this anywhere accessible on the filesystem
pid "/home/git/gitlab/tmp/pids/unicorn.pid"

# By default, the Unicorn logger will write to stderr.
# Additionally, some applications/frameworks log to stderr or stdout,
# so prevent them from going to /dev/null when daemonized here:
stderr_path "/home/git/gitlab/log/unicorn.stderr.log"
stdout_path "/home/git/gitlab/log/unicorn.stdout.log"

# Save memory by sharing the application code among multiple Unicorn workers
# with "preload_app true". See:
# https://www.rubydoc.info/gems/unicorn/5.1.0/Unicorn%2FConfigurator:preload_app
# https://brandur.org/ruby-memory#copy-on-write
preload_app true

# Enable this flag to have unicorn test client connections by writing the
# beginning of the HTTP headers before calling the application.  This
# prevents calling the application for connections that have disconnected
# while queued.  This is only guaranteed to detect clients on the same
# host unicorn runs on, and unlikely to detect disconnects even on a
# fast LAN.
check_client_connection false

require_relative "/home/git/gitlab/lib/gitlab/cluster/lifecycle_events"

before_exec do |server|
  # Signal application hooks that we're about to restart
  Gitlab::Cluster::LifecycleEvents.do_master_restart
end

run_once = true

before_fork do |server, worker|
  if run_once
    # There is a difference between Puma and Unicorn:
    # - Puma calls before_fork once when booting up master process
    # - Unicorn runs before_fork whenever new work is spawned
    # To unify this behavior we call before_fork only once (we use
    # this callback for deleting Prometheus files so for our purposes
    # it makes sense to align behavior with Puma)
    run_once = false

    # Signal application hooks that we're about to fork
    Gitlab::Cluster::LifecycleEvents.do_before_fork
  end

  # 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|
  # Signal application hooks of worker start
  Gitlab::Cluster::LifecycleEvents.do_worker_start

  # 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)
end