codis3.2安装报错dashboard.go:369: [PANIC] call rpc create-proxy to dashboard 127.0.0.1:18080 failed的处理

执行以下命令时报错：
# pwd
/usr/local/go/work/src/github.com/CodisLabs/codis

# ./bin/codis-admin --dashboard=192.168.3.198:18080 --create-proxy -x 192.168.3.198:11080

[root@node1 codis]# ./bin/codis-admin --dashboard=127.0.0.1:18080 --create-proxy -x 127.0.0.1:11080
2017/05/12 19:13:51 dashboard.go:369: [PANIC] call rpc create-proxy to dashboard 127.0.0.1:18080 failed
[error]: [Remote Error] proxy@127.0.0.1:11080 fetch model failed, Get http://127.0.0.1:11080/api/proxy/model: dial tcp 127.0.0.1:11080: getsockopt: connection refused
2 /usr/local/go/work/src/github.com/CodisLabs/codis/pkg/topom/topom_proxy.go:24
github.com/CodisLabs/codis/pkg/topom.(*Topom).CreateProxy
1 /usr/local/go/work/src/github.com/CodisLabs/codis/pkg/topom/topom_api.go:244
github.com/CodisLabs/codis/pkg/topom.(*apiServer).CreateProxy
0 /usr/local/go/work/src/github.com/CodisLabs/codis/pkg/topom/topom_api.go:81
github.com/CodisLabs/codis/pkg/topom.(*apiServer).CreateProxy-fm
... ...
[stack]: 
2 /usr/local/go/work/src/github.com/CodisLabs/codis/cmd/admin/dashboard.go:369
main.(*cmdDashboard).handleProxyCommand
1 /usr/local/go/work/src/github.com/CodisLabs/codis/cmd/admin/dashboard.go:52
main.(*cmdDashboard).Main
0 /usr/local/go/work/src/github.com/CodisLabs/codis/cmd/admin/main.go:82
main.main
... ...

知乎上的答案：https://www.zhihu.com/question/52519151，感觉没有说清楚问题和解决办法

实际上经过看前面的启动dashboard命令：
官方文档是这样启动dashboard的

nohup ./bin/codis-dashboard --ncpu=4 --config=dashboard.toml \
--log=dashboard.log --log-level=WARN &

问题出在--config=dashboard.toml上，没有显示指定config文件，就用默认的，而实际上我们需要启动自己的配置文件
加上config即可，如下：

[root@node1 codis]# nohup ./bin/codis-dashboard --ncpu=1 --config=config/dashboard.toml --log=dashboard.log --log-level=WARN >> /var/log/codis_dashboard.log &