psql: could not connect to server: Connection refused
         Is the server running on host "<GEAR_ID>-<NAMESPACE>.rhcloud.com" (<IP_ADDRESS>) and accepting
         TCP/IP connections on port <PORT_NUMBER>?

运行rhc app show –state prints：

Cartridge jbossas-7,haproxy-1.4 is started
Cartridge postgresql-9.2 is started

另外,运行rhc app show显示没什么异常.

我无法telnet到上面的IP_ADDRESS& POST_NUMBER,看起来两个齿轮之间的通信已经断开了.

有任何想法吗？

解决方法

$rhc ssh <appname>
[...rhcloud.com ...]\> pg_ctl restart
pg_ctl: old server process (PID: 20034) seems to be gone
starting server anyway
server starting