报错集：部署OpenStack时配置Rabbitmq时报错!

Posted 2022-08-03 handsomeboy-东

错误信息：

[root@ct my.cnf.d]# rabbitmqctl add_user openstack RABBIT_PASS
Error: unable to connect to node rabbit@localhost: nodedown

DIAGNOSTICS
===========

attempted to contact: [rabbit@localhost]

rabbit@localhost:
  * connected to epmd (port 4369) on localhost
  * epmd reports node 'rabbit' running on port 25672
  * TCP connection succeeded but Erlang distribution failed

  * Hostname mismatch: node "rabbit@ct" believes its host is different. Please ensure that hostnames resolve the same way locally and on "rabbit@ct"


current node details:
- node name: 'rabbitmq-cli-89@ct'
- home dir: /var/lib/rabbitmq
- cookie hash: JaJgWu1V8awy8CXzmXvTpw==

解决方法：

[root@ct my.cnf.d]# ps aux | grep mq					#找到mq进程
rabbitmq  38842  0.7  0.8 3920452 64148 ?       Ssl  22:04   0:03 /usr/lib64/erlang/erts-8.3.5.3/bin/beam.smp -W w -A 64 -P 1048576 -t 5000000 -stbt db -zdbbl 128000 -K true -- -root /usr/lib64/erlang -progname erl -- -home /var/lib/rabbitmq -- -pa /usr/lib/rabbitmq/lib/rabbitmq_server-3.6.16/ebin -noshell -noinput -s rabbit boot -sname rabbit@ct -boot start_sasl -config /etc/rabbitmq/rabbitmq -kernel inet_default_connect_options [nodelay,true] -sasl errlog_type error -sasl sasl_error_logger false -rabbit error_logger file,"/var/log/rabbitmq/[e-mail]" -rabbit sasl_error_logger file,"/var/log/rabbitmq/[e-mail]" -rabbit enabled_plugins_file "/etc/rabbitmq/enabled_plugins" -rabbit plugins_dir "/usr/lib/rabbitmq/plugins:/usr/lib/rabbitmq/lib/rabbitmq_server-3.6.16/plugins" -rabbit plugins_expand_dir "/var/lib/rabbitmq/mnesia/rabbit@ct-plugins-expand" -os_mon start_cpu_sup false -os_mon start_disksup false -os_mon start_memsup false -mnesia dir "/var/lib/rabbitmq/mnesia/rabbit@ct" -kernel inet_dist_listen_min 25672 -kernel inet_dist_listen_max 25672
rabbitmq  39053  0.0  0.0   4352   544 ?        Ss   22:04   0:00 erl_child_setup 1024
rabbitmq  39067  0.0  0.0  11588   456 ?        Ss   22:04   0:00 inet_gethost 4
rabbitmq  39068  0.0  0.0  13712   692 ?        S    22:04   0:00 inet_gethost 4
root      39465  0.0  0.0 112724   984 pts/0    S+   22:10   0:00 grep --color=auto mq
[root@ct my.cnf.d]# kill -9 38842						#杀死进程

[root@ct my.cnf.d]# rabbitmq-server -detached
Warning: PID file not written; -detached was passed.
[root@ct my.cnf.d]# rabbitmqctl stop
Stopping and halting node rabbit@localhost
[root@ct my.cnf.d]# rabbitmq-server -detached			重启rabbitmq
Warning: PID file not written; -detached was passed.
[root@ct my.cnf.d]# rabbitmqctl add_user openstack RABBIT_PASS			#再创建用户即可
Creating user "openstack"