RabbitMQ create message queue user error

problem

When configuring the basic environment of openstack, after installing RabbitMQ, creating a message queue user cannot be created

rabbitmqctl add_user openstack RABBIT_PASS

solve

This may be due to some reasons that the registration items were not correctly configured when the service was installed, and the service can be reinstalled.
I went to Baidu again, and the process can be killed.

ps -ef | grep rabbitmq       #查询进程号
ps -ef | grep rabbitmq | grep -v grep | awk '{print $2}' | xargs kill -9   #杀死进程
rabbitmq-server -detached    #启动
rabbitmqctl status           #查看状态         

Create again to succeed

Follow-up

Use the following command to query

systemctl status rabbitmq-server

Service is closed

cd /var/lib/rabbitmq/mnesia delete all files in the directory, and then execute