I am using django-celery for my django project. Last day I have changed my computer's hostname (I am using Ubuntu 12.04, edited file '/etc/hostname'), and after next restart django-celery was failing with error
Consumer: Connection Error: [Errno 111] Connection refused. Trying again in 4 seconds...
After some research on this error I could find that, changing my host name caused this error from here. My rabbitmq startup log shows
file: /var/log/rabbitmq/startup_log
Activating RabbitMQ plugins ...
********************************************************************************
********************************************************************************
0 plugins activated:
ERROR: epmd error for host "jinesh": nxdomain (non-existing domain)
My startup_err file is empty.
when I run
root@jinesh:/home/jinesh# rabbitmqctl list_users
Listing users ...
Error: unable to connect to node rabbit@jinesh: nodedown
DIAGNOSTICS
===========
nodes in question: [rabbit@jinesh]
hosts, their running nodes and ports:
- unable to connect to epmd on jinesh: nxdomain
current node details:
- node name: rabbitmqctl4956@jinesh
- home dir: /var/lib/rabbitmq
- cookie hash: RGhmB2JR1LbZ57j7xWWTxg==
I hope changing the nodename may fix this issue. But I couldn't found a way to do this. Anyone have idea about how solve this issue?
update
while changing hostname you have to change both /etc/hostname and /etc/hosts files.
I reinstalled rabbitmq and solved this issue, Will answer this question.
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
I wrote about these steps on my blog.
REVISION
I moved my blog to a new website.