EventSource调用ActionController :: Live pending

时间:2014-10-23 14:42:47

标签: ruby-on-rails-4 nginx puma

我目前正在开发一个具有以下功能的网站:

  • 在线聊天
  • 一些统计数据
  • 某些表格

我正在使用:Rails 4 + Puma + Nginx

我正在使用ActionController :: Live并创建了一个事件操作,该操作在页面加载时被调用,并且具有绑定到它的侦听器,用于侦听聊天消息或更改统计信息。

def events
response.headers["Content-Type"] = "text/event-stream"

sse   = ServerEvent.new(response.stream)
redis = Redis.new

# the safe_write method is the implementation of a workaround for the problem stated on
# http://evaleverything.com/2013/09/07/response-streams-with-rails-4-and-redis
sse.safe_write do
  redis.psubscribe("redis-foobar-key*") do |on|
    on.pmessage do |pattern, event, data|
      sse.write(data, { event: event})
    end
  end
end
rescue IOError
  puts "Stream Closed"
ensure
  puts "closing all threads and connections\n"
  redis.quit
  sse.close
end

我面临的问题是:在加载页面时,有时一切正常,我可以启动事件源并正确处理事件,但有时事件源请求保持待决并且不要t返回任何错误。

我通过以下方式进行了成功尝试:

  • 铬+窗口
  • chrome + macosx(计算机A)
  • firefox + macosx(计算机A)

通过以下方式尝试失败:

  • chrome + ubuntu(代理后面)
  • firefox + ubuntu(代理后面)
  • chrome-macosx(计算机B)
  • firefox + macosx(计算机B)

我正在使用nginx,但不认为这是问题,不过,这里是我的配置

upstream bar {
  server foo.com:9292;
}

server {
  listen 80;
  server_name foo.com megafoo.com;
  root /(...)/public;

  location / {
    proxy_pass http://bar;


    proxy_set_header Host $host;
    proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;

    proxy_set_header Connection '';
    proxy_http_version 1.1;
    chunked_transfer_encoding off;

    proxy_buffering off;
    proxy_cache off;

    if (-f $request_filename) {
     break;
    }
  }

  location ~* ^/assets/ {
    # Per RFC2616 - 1 year maximum expiry
    expires 1y;
    add_header Cache-Control public;

    # Some browsers still send conditional-GET requests if there's a
    # Last-Modified header or an ETag header even if they haven't
    # reached the expiry date sent in the Expires header.
    add_header Last-Modified "";
    add_header ETag "";
    break;
  }
}

1 个答案:

答案 0 :(得分:3)

看起来防病毒正在阻止连接,不允许它成功完成