我在 Openshift 上有一个可扩展的 PHP 5.4 磁带，有一个青铜帐户。这是一个 wordpress 博客，我使用它直到 2 周前。
今天，我回来参观它，它说：
503服务不可用。没有可用于处理此请求的服务器。
要检查代理状态，我访问了此链接http://myapp-mydomain.rhcloud.com/haproxy-status并在那里看到：
看来DOWN了。
使用 rhc tail 检查日志我看到了这一行：
==> app-root/logs/haproxy.log <==
[ALERT] 077/194638 (138628) : proxy 'express' has no server available!
[WARNING] 086/161237 (138628) : Server express/local-gear is DOWN for maintenance.
[WARNING] 086/161239 (33522) : config : log format ignored for proxy 'stats' since it has no log address.
[WARNING] 086/161239 (33522) : config : log format ignored for proxy 'express' since it has no log address.
[WARNING] 086/161239 (33522) : Server express/local-gear is DOWN, reason: Layer7 wrong status, code: 500, info: "HTTP status check returned code <3C>500<3E>", check duration: 65ms. 0 active and 0 backup servers left. 0 sessions active, 0 requeued, 0 remaining in queue.
[ALERT] 086/161239 (33522) : proxy 'express' has no server available!
[WARNING] 086/161240 (33522) : Server express/local-gear is DOWN for maintenance.
[WARNING] 086/161323 (33522) : Server express/local-gear is UP (leaving maintenance).
[WARNING] 086/161325 (33522) : Server express/local-gear is DOWN, reason: Layer7 wrong status, code: 500, info: "HTTP status check returned code <3C>500<3E>", check duration: 237ms. 0 active and 0 backup servers left. 0 sessions active, 0 requeued, 0 remaining in queue.
[ALERT] 086/161325 (33522) : proxy 'express' has no server available!
我也尝试使用 openshift“重启”按钮重启应用程序，但没有成功。
不知道怎么解决。任何想法？
提前致谢