PumaがRails 5で動作しない

Question

Railsアプリを4.1.1から5.1.4にアップグレードしています。以前はアプリケーションサーバーでwebrickを使用していましたが、Rails 5はデフォルトサーバーとしてPumaを使用していますので、インストールしましたがエラーが発生しました。

のconfig/puma.rb

# Change to match your CPU core count 
workers 2 

# Min and Max threads per worker 
threads 1, 6 

app_dir = File.expand_path("../..", __FILE__) 
shared_dir = "#{app_dir}/shared" 

# Default to production 
rails_env = ENV['RAILS_ENV'] || "development" 
environment rails_env 

# Set up socket location 
bind "unix:/home/system/project/shared/sockets/puma.sock" 
# bind "unix:#{shared_dir}/sockets/puma.sock" 

# Logging 
stdout_redirect "#{shared_dir}/log/puma.stdout.log", "#{shared_dir}/log/puma.stderr.log", true 

# Set master PID and state locations 
pidfile "#{shared_dir}/pids/puma.pid" 
state_path "#{shared_dir}/pids/puma.state" 
activate_control_app 

on_worker_boot do 
    require "active_record" 
    ActiveRecord::Base.connection.disconnect! rescue ActiveRecord::ConnectionNotEstablished 
    ActiveRecord::Base.establish_connection(YAML.load_file("#{app_dir}/config/database.yml")[rails_env]) 
end 

私は、フォルダのルートパスに適切な権限を持つ '共有/ソケット' を作成しました：

drwxrwxrwx 1 system system 4096 Sep 19 10:35 tmp 
drwxr-xr-x 1 system system 4096 Sep 19 10:37 sockets 
drwxr-xr-x 1 system system 4096 Sep 19 10:51 shared 

私はrails sを実行したり、pumaを実行しようとするとフォアグラウンドモードでは、以下のエラーが表示されます。

system@system /home/system/project (rails_upgrade_5 *) $ rails s 
=> Booting Puma 
=> Rails 5.1.4 application starting in development 
=> Run `rails server -h` for more startup options 
[28725] Puma starting in cluster mode... 
[28725] * Version 3.10.0 (ruby 2.4.1-p111), codename: Russell's Teapot 
[28725] * Min threads: 1, max threads: 6 
[28725] * Environment: development 
[28725] * Process workers: 2 
[28725] * Phased restart available 
[28725] * Listening on unix:/home/system/project/shared/sockets/puma.sock 
Exiting 
/home/system/.rvm/gems/ruby-2.4.1@rails_5/gems/puma-3.10.0/lib/puma/binder.rb:367:in `initialize': Operation not permitted - connect(2) for /home/system/project/shared/sockets/puma.sock (Errno::EPERM) 
    from /home/system/.rvm/gems/ruby-2.4.1@rails_5/gems/puma-3.10.0/lib/puma/binder.rb:367:in `new' 
    from /home/system/.rvm/gems/ruby-2.4.1@rails_5/gems/puma-3.10.0/lib/puma/binder.rb:367:in `add_unix_listener' 
    from /home/system/.rvm/gems/ruby-2.4.1@rails_5/gems/puma-3.10.0/lib/puma/binder.rb:141:in `block in parse' 
    from /home/system/.rvm/gems/ruby-2.4.1@rails_5/gems/puma-3.10.0/lib/puma/binder.rb:88:in `each' 
    from /home/system/.rvm/gems/ruby-2.4.1@rails_5/gems/puma-3.10.0/lib/puma/binder.rb:88:in `parse' 
    from /home/system/.rvm/gems/ruby-2.4.1@rails_5/gems/puma-3.10.0/lib/puma/cluster.rb:420:in `run' 
    from /home/system/.rvm/gems/ruby-2.4.1@rails_5/gems/puma-3.10.0/lib/puma/launcher.rb:183:in `run' 
    from /home/system/.rvm/gems/ruby-2.4.1@rails_5/gems/puma-3.10.0/lib/rack/handler/puma.rb:69:in `run' 
    from /home/system/.rvm/gems/ruby-2.4.1@rails_5/gems/rack-2.0.3/lib/rack/server.rb:297:in `start' 
    from /home/system/.rvm/gems/ruby-2.4.1@rails_5/gems/railties-5.1.4/lib/rails/commands/server/server_command.rb:44:in `start' 
    from /home/system/.rvm/gems/ruby-2.4.1@rails_5/gems/railties-5.1.4/lib/rails/commands/server/server_command.rb:135:in `block in perform' 
    from /home/system/.rvm/gems/ruby-2.4.1@rails_5/gems/railties-5.1.4/lib/rails/commands/server/server_command.rb:130:in `tap' 
    from /home/system/.rvm/gems/ruby-2.4.1@rails_5/gems/railties-5.1.4/lib/rails/commands/server/server_command.rb:130:in `perform' 
    from /home/system/.rvm/gems/ruby-2.4.1@rails_5/gems/thor-0.20.0/lib/thor/command.rb:27:in `run' 
    from /home/system/.rvm/gems/ruby-2.4.1@rails_5/gems/thor-0.20.0/lib/thor/invocation.rb:126:in `invoke_command' 
    from /home/system/.rvm/gems/ruby-2.4.1@rails_5/gems/thor-0.20.0/lib/thor.rb:387:in `dispatch' 
    from /home/system/.rvm/gems/ruby-2.4.1@rails_5/gems/railties-5.1.4/lib/rails/command/base.rb:63:in `perform' 
    from /home/system/.rvm/gems/ruby-2.4.1@rails_5/gems/railties-5.1.4/lib/rails/command.rb:44:in `invoke' 
    from /home/system/.rvm/gems/ruby-2.4.1@rails_5/gems/railties-5.1.4/lib/rails/commands.rb:16:in `<top (required)>' 
    from bin/rails:4:in `require' 
    from bin/rails:4:in `<main> 

stackoverflowにある解決策を試しましたが、うまくいきませんでした。 私が間違っているかどうか教えてください。

Answer 1

問題は、次の行

のconfig/puma.rb

# Set up socket location 
bind "unix:/home/system/project/shared/sockets/puma.sock" 

である

# Puma can serve each request in a thread from an internal thread pool. 
# The `threads` method setting takes two numbers a minimum and maximum. 
# Any libraries that use thread pools should be configured to match 
# the maximum value specified for Puma. Default is set to 5 threads for minimum 
# and maximum, this matches the default thread size of Active Record. 
# 
threads_count = ENV.fetch("RAILS_MAX_THREADS") { 5 }.to_i 
threads threads_count, threads_count 

# Specifies the `port` that Puma will listen on to receive requests, default is 3000. 
# 
port  ENV.fetch("PORT") { 3000 } 

# Specifies the `environment` that Puma will run in. 
# 
environment ENV.fetch("RAILS_ENV") { "development" } 

# Specifies the number of `workers` to boot in clustered mode. 
# Workers are forked webserver processes. If using threads and workers together 
# the concurrency of the application would be max `threads` * `workers`. 
# Workers do not work on JRuby or Windows (both of which do not support 
# processes). 
# 
# workers ENV.fetch("WEB_CONCURRENCY") { 2 } 

# Use the `preload_app!` method when specifying a `workers` number. 
# This directive tells Puma to first boot the application and load code 
# before forking the application. This takes advantage of Copy On Write 
# process behavior so workers use less memory. If you use this option 
# you need to make sure to reconnect any threads in the `on_worker_boot` 
# block. 
# 
# preload_app! 

# The code in the `on_worker_boot` will be called if you are using 
# clustered mode by specifying a number of `workers`. After each worker 
# process is booted this block will be run, if you are using `preload_app!` 
# option you will want to use this block to reconnect to any threads 
# or connections that may have been created at application boot, Ruby 
# cannot share connections between processes. 
# 
# on_worker_boot do 
# ActiveRecord::Base.establish_connection if defined?(ActiveRecord) 
# end 

# Allow puma to be restarted by `rails restart` command. 
plugin :tmp_restart 

Answer 2

このファイルにあなたのpuma.rbを更新し、以下のように変更します。

を

# Set up socket location 
bind "unix:///home/system/project/shared/sockets/puma.sock"