大佬教程收集整理的这篇文章主要介绍了node.js – 使用’express’的开启haploxy错误没有可用的服务器，大佬教程大佬觉得挺不错的，现在分享给大家，也给大家做个参考。
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 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.
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