RabbitMQ报错Error: unable to connect to node rabbit@xxx: nodedown的解决方式
环境:Win10x64+erlang_otp_19.1x64+RabbitMQ3.6.6
刚开始研究RabbitMQ,就遇到问题:
安装好之后,按照官方安装向导执行rabbitmqctl status命令检查状态时,报如下错误:
Status of node 'rabbit@DESKTOP-RVK1IHE' ... Error: unable to connect to node 'rabbit@DESKTOP-RVK1IHE': nodedown DIAGNOSTICS =========== attempted to contact: ['rabbit@DESKTOP-RVK1IHE'] rabbit@DESKTOP-RVK1IHE: * connected to epmd (port 4369) on DESKTOP-RVK1IHE * epmd reports node 'rabbit' running on port 25672 * TCP connection succeeded but Erlang distribution failed * Authentication failed (rejected by the remote node), please check the Erlang cookie current node details: - node name: 'rabbitmq-cli-22@DESKTOP-RVK1IHE' - home dir: C:\Users\TNT - cookie hash: oVa+k73FyoNB9z87SvbEAQ==
根据提示,应该是Erlang的cookie出现问题。谷歌后找到了两种解决方式(还有集群的解决方案,这里无关就不阐述了):
1、重新安装RabbitMQ的服务
For some reason the service set up by the installer did not configure several registry entries. Running this set them correctly and allowed the service to run.
这是由于某些原因在安装服务时没有正确配置注册项,重新安装服务即可解决:
以管理员身份运行RabbitMQ Command Propmt(开始菜单中)
执行rabbitmq-service remove
执行rabbitmq-service install
然后再测试是否成功。
2、更正Erlang的cookie
Erlang会生成两个cookie文件:C:\Windows\.erlang.cookie 及 C:\用户\你的用户名\.erlang.cookie。检查两个文件内容是否一致,不一致用其中一个替换另一个即可。
我这里用第二种方式解决了问题,正如程序提示是cookie不正确所导致。
目前还不清楚为何会这样,网上查阅的资料很多都是集群才会出现这种情况,可能是bug,有待探究。
参考:http://stackoverflow.com/questions/28258392/rabbitmq-has-nodedown-error