为什么是 0.0 ELB 实例？

Question

我已成功完成将我的 rails 应用程序部署到我的环境中，但是当我看到监控仪表板中有 0.0 个 ELB 实例时，这是为什么呢？

这是我部署时的日志：

INFO: Deploying new version to instance(s).                         
INFO: New application version was deployed to running EC2 instances.
INFO: Environment update completed successfully.                    

目前我在访问我的应用时只得到空白页面，我认为那是因为我有 0.0 个 ELB 实例

我将如何解决这个问题？

这是一个快照：

编辑，活动日志：

[2015-08-23T17:18:03.570Z] INFO  [18661] - [Application update/AppDeployStage1/AppDeployEnactHook/99_reload_app_server.sh] : Starting activity...
[2015-08-23T17:18:04.993Z] INFO  [18661] - [Application update/AppDeployStage1/AppDeployEnactHook/99_reload_app_server.sh] : Completed activity. Result:
  + service passenger restart
  According to the PID file '/var/app/support/pids/passenger.pid',
  Phusion Passenger Standalone doesn't seem to be running.

  If you know that Phusion Passenger Standalone *is* running then one of these
  might be the cause of this error:

   * The Phusion Passenger Standalone instance that you want to stop isn't running
     on port 80, but on another port. If this is the case then you
     should specify the right port with --port.
     If the instance is listening on a Unix socket file instead of a TCP port,
     then please specify the PID file's filename with --pid-file.
   * The instance that you want to stop has stored its PID file in a non-standard
     location. In this case please specify the right PID file with --pid-file.
  /opt/elasticbeanstalk/support/conf/nginx_config_healthd.erb:49:in `block in write_nginx_config_file': undefined local variable or method `location_config_filename' for #<PhusionPassenger::Standalone::StartCommand:0x007f7ab$
        from /opt/rubies/ruby-2.2.2/lib/ruby/2.2.0/erb.rb:863:in `eval'
        from /opt/rubies/ruby-2.2.2/lib/ruby/2.2.0/erb.rb:863:in `result'
        from /opt/rubies/ruby-2.2.2/lib/ruby/gems/2.2.0/gems/passenger-5.0.15/lib/phusion_passenger/standalone/start_command/nginx_engine.rb:120:in `block in write_nginx_config_file'
        from /opt/rubies/ruby-2.2.2/lib/ruby/gems/2.2.0/gems/passenger-5.0.15/lib/phusion_passenger/standalone/start_command/nginx_engine.rb:113:in `open'
        from /opt/rubies/ruby-2.2.2/lib/ruby/gems/2.2.0/gems/passenger-5.0.15/lib/phusion_passenger/standalone/start_command/nginx_engine.rb:113:in `write_nginx_config_file'
        from /opt/rubies/ruby-2.2.2/lib/ruby/gems/2.2.0/gems/passenger-5.0.15/lib/phusion_passenger/standalone/start_command/nginx_engine.rb:41:in `start_engine_real'
        from /opt/rubies/ruby-2.2.2/lib/ruby/gems/2.2.0/gems/passenger-5.0.15/lib/phusion_passenger/standalone/start_command.rb:609:in `start_engine'
        from /opt/rubies/ruby-2.2.2/lib/ruby/gems/2.2.0/gems/passenger-5.0.15/lib/phusion_passenger/standalone/start_command.rb:80:in `run'
        from /opt/rubies/ruby-2.2.2/lib/ruby/gems/2.2.0/gems/passenger-5.0.15/lib/phusion_passenger/standalone/main.rb:50:in `run!'
        from /opt/rubies/ruby-2.2.2/lib/ruby/gems/2.2.0/gems/passenger-5.0.15/bin/passenger:44:in `<top (required)>'
        from /opt/rubies/ruby-2.2.2/bin/passenger:23:in `load'
        from /opt/rubies/ruby-2.2.2/bin/passenger:23:in `<main>'
[2015-08-23T17:18:04.993Z] INFO  [18661] - [Application update/AppDeployStage1/AppDeployEnactHook] : Completed activity. Result:
  Successfully execute hooks in directory /opt/elasticbeanstalk/hooks/appdeploy/enact.

Answer 1

您有 0 个实例正在运行，这就是您的应用未运行的原因。您需要单击 EC2 并重新启动与您的 Elastic Beanstalk 关联的实例。

Answer 2

看起来您正在使用增强健康。您可以单击仪表板链接。您将看到一个原因按钮。单击原因按钮，它将告诉您为什么您的环境健康状况很严重。在此处查看用于定位原因按钮的示例屏幕截图：https://aws.amazon.com/blogs/aws/elastic-beanstalk-update-enhanced-application-health-monitoring/