安装部署rabbitmq报错—

安装部署rabbitmq时报错：

Error: unable to perform an operation on node 'rabbit@ramq'. 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 runningIn 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@ramq* If target node is configured to use long node names, don't forget to use --longnames with CLI toolsDIAGNOSTICS
===========attempted to contact: [rabbit@ramq]rabbit@ramq:* unable to connect to epmd (port 4369) on ramq: badarg (unknown POSIX error)Current node details:* node name: 'rabbitmqcli-5339-rabbit@ramq'* effective user's home directory: /var/lib/rabbitmq* Erlang cookie hash: 562q8brGLPiO0VyesKWViQ==[root@ramqgames]# rabbitmqctl status
Error: unable to perform an operation on node 'rabbit@ramq'. 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 runningIn 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@ramq* If target node is configured to use long node names, don't forget to use --longnames with CLI toolsDIAGNOSTICS
===========attempted to contact: [rabbit@ramq]rabbit@ramq:* unable to connect to epmd (port 4369) on ramq: badarg (unknown POSIX error)Current node details:* node name: 'rabbitmqcli-5415-rabbit@ramq'* effective user's home directory: /var/lib/rabbitmq* Erlang cookie hash: 562q8brGLPiO0VyesKWViQ==

原因：rabbitmq宿主机无法解析本机的主机名；
解决方式：编辑/etc/hosts文件，添加主机名映射
编辑后端hosts文件如下图所示（主机名为ramq）：

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安装部署rabbitmq报错——已解决

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