ruby-on-rails - unicorn 启动问题

Question

我不知道 unicorn 出了什么问题，它不想启动。任何帮助表示赞赏

ubuntu@ip-172-31-15-195:~/www/tf/current$ RAILS_ENV=production bundle exec unicorn_rails -c config/unicorn.rb -D
bundler: failed to load command: unicorn_rails (/home/ubuntu/www/tf/shared/bundle/ruby/2.3.0/bin/unicorn_rails)
Errno::EEXIST: File exists @ dir_s_mkdir - tmp/pids
  /usr/local/lib/ruby/2.3.0/fileutils.rb:254:in `mkdir'
  /usr/local/lib/ruby/2.3.0/fileutils.rb:254:in `fu_mkdir'
  /usr/local/lib/ruby/2.3.0/fileutils.rb:228:in `block (2 levels) in mkdir_p'
  /usr/local/lib/ruby/2.3.0/fileutils.rb:226:in `reverse_each'
  /usr/local/lib/ruby/2.3.0/fileutils.rb:226:in `block in mkdir_p'
  /usr/local/lib/ruby/2.3.0/fileutils.rb:211:in `each'
  /usr/local/lib/ruby/2.3.0/fileutils.rb:211:in `mkdir_p'
  /home/ubuntu/www/tf/shared/bundle/ruby/2.3.0/gems/unicorn-5.0.1/bin/unicorn_rails:202:in `block in <top (required)>'
  /home/ubuntu/www/tf/shared/bundle/ruby/2.3.0/gems/unicorn-5.0.1/lib/unicorn/configurator.rb:80:in `reload'
  /home/ubuntu/www/tf/shared/bundle/ruby/2.3.0/gems/unicorn-5.0.1/lib/unicorn/configurator.rb:65:in `initialize'
  /home/ubuntu/www/tf/shared/bundle/ruby/2.3.0/gems/unicorn-5.0.1/lib/unicorn/http_server.rb:76:in `new'
  /home/ubuntu/www/tf/shared/bundle/ruby/2.3.0/gems/unicorn-5.0.1/lib/unicorn/http_server.rb:76:in `initialize'
  /home/ubuntu/www/tf/shared/bundle/ruby/2.3.0/gems/unicorn-5.0.1/bin/unicorn_rails:209:in `new'
  /home/ubuntu/www/tf/shared/bundle/ruby/2.3.0/gems/unicorn-5.0.1/bin/unicorn_rails:209:in `<top (required)>'
  /home/ubuntu/www/tf/shared/bundle/ruby/2.3.0/bin/unicorn_rails:22:in `load'
  /home/ubuntu/www/tf/shared/bundle/ruby/2.3.0/bin/unicorn_rails:22:in `<top (required)>'
master failed to start, check stderr log for details

Answer 1

你有符号链接(symbolic link)~www/tf/current/tmp/pids存在但它的目标目录~www/tf/shared/pids/不存在，因此链接已断开。 unicorn正在尝试创建 tmp/pids ~www/tf/current/ 中的目录但是已经存在的符号链接(symbolic link)会导致失败。

要解决此问题，您需要创建 ~www/tf/shared/pids/具有适当所有权和权限的目录。