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rb2k
Asked: 2009-06-03 12:06:50 +0800 CST

乘客 + Nginx => 502 错误网关

  • 772

我正在尝试运行一个相对简单的 Rails 应用程序（http://www.enkiblog.com/），它有点工作。只有当我使用“脚本/服务器 -e 生产”并连接到端口 3000（尽管仍处于生产模式）时，评论和管理界面才有效。

Nginx 会在他的 error.log 中有这个：

2009/06/02 21:46:10 [error] 11536#0: *18 upstream prematurely closed
connection while reading response header from upstream, client:
85.180.23.43, server: *.marc-seeger.de, request: "GET /admin HTTP/
1.1", upstream: "unix:/tmp/passenger.11520/master/
helper_server.sock:", host: "www.marc-seeger.de"
*** Exception NoMethodError in application (undefined method `each'
for nil:NilClass) (process 14080):
        from /opt/ruby-enterprise-1.8.6-20090421/lib/ruby/gems/1.8/
gems/passenger-2.2.2/lib/phusion_passenger/rack/request_handler.rb:
85:in `process_request'
        from /opt/ruby-enterprise-1.8.6-20090421/lib/ruby/gems/1.8/
gems/passenger-2.2.2/lib/phusion_passenger/abstract_request_handler.rb:
203:in `main_loop'
        from /opt/ruby-enterprise-1.8.6-20090421/lib/ruby/gems/1.8/
gems/passenger-2.2.2/lib/phusion_passenger/railz/
application_spawner.rb:340:in `start_request_handler'
        from /opt/ruby-enterprise-1.8.6-20090421/lib/ruby/gems/1.8/
gems/passenger-2.2.2/lib/phusion_passenger/railz/
application_spawner.rb:298:in `handle_spawn_application'
        from /opt/ruby-enterprise-1.8.6-20090421/lib/ruby/gems/1.8/
gems/passenger-2.2.2/lib/phusion_passenger/utils.rb:181:in `safe_fork'
        from /opt/ruby-enterprise-1.8.6-20090421/lib/ruby/gems/1.8/
gems/passenger-2.2.2/lib/phusion_passenger/railz/
application_spawner.rb:296:in `handle_spawn_application'
        from /opt/ruby-enterprise-1.8.6-20090421/lib/ruby/gems/1.8/
gems/passenger-2.2.2/lib/phusion_passenger/abstract_server.rb:337:in
`__send__'
        from /opt/ruby-enterprise-1.8.6-20090421/lib/ruby/gems/1.8/
gems/passenger-2.2.2/lib/phusion_passenger/abstract_server.rb:337:in
`main_loop'
        from /opt/ruby-enterprise-1.8.6-20090421/lib/ruby/gems/1.8/
gems/passenger-2.2.2/lib/phusion_passenger/abstract_server.rb:187:in
`start_synchronously'
        from /opt/ruby-enterprise-1.8.6-20090421/lib/ruby/gems/1.8/
gems/passenger-2.2.2/lib/phusion_passenger/abstract_server.rb:154:in
`start'
        from /opt/ruby-enterprise-1.8.6-20090421/lib/ruby/gems/1.8/
gems/passenger-2.2.2/lib/phusion_passenger/railz/
application_spawner.rb:192:in `start'
        from /opt/ruby-enterprise-1.8.6-20090421/lib/ruby/gems/1.8/
gems/passenger-2.2.2/lib/phusion_passenger/spawn_manager.rb:257:in
`spawn_rails_application'
        from /opt/ruby-enterprise-1.8.6-20090421/lib/ruby/gems/1.8/
gems/passenger-2.2.2/lib/phusion_passenger/
abstract_server_collection.rb:126:in `lookup_or_add'
        from /opt/ruby-enterprise-1.8.6-20090421/lib/ruby/gems/1.8/
gems/passenger-2.2.2/lib/phusion_passenger/spawn_manager.rb:251:in
`spawn_rails_application'
        from /opt/ruby-enterprise-1.8.6-20090421/lib/ruby/gems/1.8/
gems/passenger-2.2.2/lib/phusion_passenger/
abstract_server_collection.rb:80:in `synchronize'
        from /opt/ruby-enterprise-1.8.6-20090421/lib/ruby/gems/1.8/
gems/passenger-2.2.2/lib/phusion_passenger/
abstract_server_collection.rb:79:in `synchronize'
        from /opt/ruby-enterprise-1.8.6-20090421/lib/ruby/gems/1.8/
gems/passenger-2.2.2/lib/phusion_passenger/spawn_manager.rb:250:in
`spawn_rails_application'
        from /opt/ruby-enterprise-1.8.6-20090421/lib/ruby/gems/1.8/
gems/passenger-2.2.2/lib/phusion_passenger/spawn_manager.rb:153:in
`spawn_application'
        from /opt/ruby-enterprise-1.8.6-20090421/lib/ruby/gems/1.8/
gems/passenger-2.2.2/lib/phusion_passenger/spawn_manager.rb:282:in
`handle_spawn_application'
        from /opt/ruby-enterprise-1.8.6-20090421/lib/ruby/gems/1.8/
gems/passenger-2.2.2/lib/phusion_passenger/abstract_server.rb:337:in
`__send__'
        from /opt/ruby-enterprise-1.8.6-20090421/lib/ruby/gems/1.8/
gems/passenger-2.2.2/lib/phusion_passenger/abstract_server.rb:337:in
`main_loop'
        from /opt/ruby-enterprise-1.8.6-20090421/lib/ruby/gems/1.8/
gems/passenger-2.2.2/lib/phusion_passenger/abstract_server.rb:187:in
`start_synchronously'
        from /opt/ruby-enterprise-1.8.6-20090421/lib/ruby/gems/1.8/
gems/passenger-2.2.2/bin/passenger-spawn-server:61
Error during failsafe response: closed stream

任何想法？

ps debian 5.0

ruby ruby-on-rails nginx phusion-passenger

2 个回答

  1. 当您没有在 SQLite 数据库上设置适当的权限时，您可能会从 nginx 收到这样的 502 错误。

    • 1
  2. Best Answer

    原来这是一个乘客 + sqlite + nginx + unix 权限问题。
    我通过迁移到 MySQL “解决”了它

    • 0

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