node diag res targe amqp gui 一次 rep authent

今天第二次部署rabbitmq，第一次部署之後早都沒有印象了，哎，好無奈，不過依然對rabbitmq不懂，但是先部署好吧。流程這裏先不寫了，先記錄一個問題吧，看見網上大家的這個問題很少見，給需要的小夥伴一個參考吧，可能大家不寫是覺得問題簡單所以不屑一顧了，但是我這個菜鳥渣渣還得記錄一下。安裝好之後啟動了rabbitmq，查看狀態報錯如下：
[root@nginx ~]# rabbitmqctl status
Status of node rabbit@nginx ...
Error: unable to perform an operation on node ‘rabbit@nginx‘. Please see diagnostics information and suggestions below.

Most common reasons for this are:

• Target node is unreachable (e.g. due to hostname resolution, TCP connection or firewall issues)
• CLI tool fails to authenticate with the server (e.g. due to CLI tool‘s Erlang cookie not matching that of the server)
• Target node is not running

In addition to the diagnostics info below:

• See the CLI, clustering and networking guides on http://rabbitmq.com/documentation.html to learn more
• Consult server logs on node rabbit@nginx

DIAGNOSTICS

attempted to contact: [rabbit@nginx]

rabbit@nginx:

• connected to epmd (port 4369) on nginx
• epmd reports node ‘rabbit‘ uses port 25672 for inter-node and CLI tool traffic
• can‘t establish TCP connection to the target node, reason: timeout (timed out)
• suggestion: check if host ‘nginx‘ resolves, is reachable and ports 25672, 4369 are not blocked by firewall

Current node details:

• node name: rabbitmqcli55@nginx
• effective user‘s home directory: /root
• Erlang cookie hash: 5xhHO3pWlZKxcLJlQY+zUA==

原因：
自己修改了主機名，所以需要在hosts文件中做解析。

解決辦法：
[root@nginx ~]# cat /etc/hosts
127.0.0.1 localhost localhost.localdomain localhost4 localhost4.localdomain4 nginx
::1 localhost localhost.localdomain localhost6 localhost6.localdomain6

再查看狀態，好了。
[root@nginx ~]# rabbitmqctl status
Status of node rabbit@nginx ...
[{pid,12301},
{running_applications,
[{rabbitmq_management,"RabbitMQ Management Console","3.7.7"},
{rabbitmq_management_agent,"RabbitMQ Management Agent","3.7.7"},
{rabbitmq_web_dispatch,"RabbitMQ Web Dispatcher","3.7.7"},
{rabbit,"RabbitMQ","3.7.7"},
{amqp_client,"RabbitMQ AMQP Client","3.7.7"},
{rabbit_common,
"Modules shared by rabbitmq-server and rabbitmq-erlang-client",
"3.7.7"},
{recon,"Diagnostic tools for production use","2.3.2"},
.
.
.
.
安裝過程見word文檔，同時有安裝腳本。此留作記錄。201808082209

rabbitmqctl status報錯