与“快速”的Openshift haproxy错误没有可用的服务器
我从Openshift创build了一个基本的Nodejs应用程序，随机地，服务在几天内终止了几次。 从我的Nodejs模块没有错误消息，但只有在haproxy自动安装。
来自haproxy.log的消息是：
[WARNING] 184/001333 (193501) : Server express/local-gear is DOWN for maintenance. [WARNING] 184/010106 (483047) : config : log format ignored for proxy 'stats' since it has no log address. [WARNING] 184/010106 (483047) : config : log format ignored for proxy 'express' since it has no log address. [WARNING] 184/010106 (483047) : Server express/local-gear is DOWN, reason: Layer4 connection problem, info: "Connection refused", check duration: 0ms. 0 active and 0 backup servers left. 0 sessions active, 0 requeued, 0 remaining in queue. [ALERT] 184/010106 (483047) : proxy 'express' has no server available! [WARNING] 184/010110 (483047) : Server express/local-gear is DOWN for maintenance. [WARNING] 184/010115 (483047) : Server express/local-gear is UP (leaving maintenance). [WARNING] 184/010116 (483047) : Server express/local-gear is DOWN, reason: Layer7 wrong status, code: 500, info: "Internal Server Error", check duration: 43ms. 0 active and 0 backup servers left. 0 sessions active, 0 requeued, 0 remaining in queue. [ALERT] 184/010116 (483047) : proxy 'express' has no server available! haproxy_ctld.log
E, [2014-07-03T12:12:59.557445 #97055] ERROR -- : Could not connect to the application. Check if the application is stopped. E, [2014-07-03T12:13:04.557968 #97055] ERROR -- : Could not connect to the application. Check if the application is stopped. E, [2014-07-03T12:13:09.558480 #97055] ERROR -- : Could not connect to the application. Check if the application is stopped.
检查这个： Openshift Layer4连接，应用程序不会启动
问题可能是你没有在快速应用程序的根目录下提供任何东西，所以你需要修改haproxyconfiguration文件，find提及express和httpchk的文件，以及从响应请求的东西变成/。
或者，只需要提供/ HAProxy不会继续重新启动您的服务。
你确定stream量正在保持你的应用程序？ 如果没有要求，应该“放气”装备。 任何后续的请求都应该“膨胀”回来，但是最终可能是“服务不可用”。
Re @Dids回答，尽pipe正确，RedHatbuild议不要更改HaProxy Keepalive URL，以便将来更新的Openshift可能会覆盖configuration。 我自己，我修改了应用程序来为根服务一个简单的Hello。