sudorabbitmqctl状态给出错误并且还需要时间来响应

Question

当我在本地服务器（特别是 rhel8）上运行

sudo rabbitmqctl status

时，我收到此错误

Error: unable to perform an operation on node 'rabbit@xxxxx'. 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 https://rabbitmq.com/documentation.html to learn more

* Consult server logs on node rabbit@xxxxxx

* If target node is configured to use long node names, don't forget to use --longnames with CLI tools
 
DIAGNOSTICS

===========
 
attempted to contact: ['rabbit@xxxxx']
 
rabbit@xxxxx:

  * connected to epmd (port 4369) on xxxxxxx

  * 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 'xxxxxxxx' resolves, is reachable and ports 25672, 4369 are not blocked by firewall
 
Current node details:

* node name: 'rabbitmqcli-401-rabbit@xxxxx'

* effective user's home directory: /var/lib/rabbitmq

* Erlang cookie hash: gvMlNMNDWrRk2xONh+tqWQ==

 Documentation: Table of Contents
 — RabbitMQ

Erlang 版本 =

Erlang/OTP 25

Rabbitmq 版本 =

3.12.12

最新

我该如何修复这个错误？

我尝试使用

25672, 4369, 5671, and 15672

命令与端口

nc 

建立 TCP 连接，并且连接成功。

此外，我还对主机名/IP 地址进行了 ping 操作以验证是否可以访问。

Answer 1

检查 RabbitMQ 服务器上的 Erlang cookie Cookie 的默认位置是：

/var/lib/rabbitmq/.erlang.cookie

cat /var/lib/rabbitmq/.erlang.cookie

将cookie复制到用户的主目录 使用 sudo 将 cookie 复制到运行

rabbitmqctl

的用户的主目录，例如

dam01

用户：

sudo cp /var/lib/rabbitmq/.erlang.cookie /home/dam01/.erlang.cookie

为cookie设置适当的权限 通过将权限设置为

400

，确保只有所有者才能读取该文件

sudo chmod 400 /home/dam01/.erlang.cookie

更新

/etc/hosts

文件 编辑

/etc/hosts

文件以将

127.0.0.1

映射到您的主机名：

sudo vi /etc/hosts

添加或修改以下行：

127.0.0.1 hostnamexxxxxx

重新启动 RabbitMQ 服务器并检查状态 停止、启动和验证 RabbitMQ 服务器：

sudo rabbitmq-server stop
sudo rabbitmq-server start
sudo rabbitmqctl status