nguyentamvinhlong/rabbitmq-server-change-hostname.md

## rabbitmq-server-change-hostname.md

      
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              rabbitmq-server-change-hostname.md
            
          
    rabbitmq-server change hostname

Remove the old installation of RabbitMQ to fix this problem. Here are steps to reinstall RabbitMQ. These commands are run as the root user:
Stop RabbitMQ:
rabbitmqctl stop

Change
/etc/hosts

Change
/etc/hostname

Uninstall old RabbitMQ:
dpkg -P rabbitmq-server

Remove RabbitMQ’s database:
rm -rf /var/lib/rabbitmq

Find erlang’s process that is running rabbit:
ps ax | grep rabbit

Kill the listed process
Reinstall RabbitMQ:
apt-get install rabbitmq-server

update rabbitmq config-env

edit at:
/etc/rabbitmq/rabbitmq-env.conf

like content example:
# I am a complete /etc/rabbitmq/rabbitmq-env.conf file.
# Comment lines start with a hash character.
# This is a /bin/sh script file - use ordinary envt var syntax

NODENAME=rabbit@coconut

ref: https://www.rabbitmq.com/man/rabbitmq-env.conf.5.man.html