[rabbitmq-discuss] Configuring RabbitMQ to support change in hostname

Tue Apr 2 19:44:28 BST 2013

So, RabbitMQ does not really support change in hostname at all without 
losing existing data. Is that correct?

From: rabbitmq-discuss-bounces at lists.rabbitmq.com 
[mailto:rabbitmq-discuss-bounces at lists.rabbitmq.com] On Behalf Of Tim Watson
Sent: Tuesday, April 02, 2013 4:31 AM
To: Discussions about RabbitMQ
Cc: Discussions about RabbitMQ
Subject: Re: [rabbitmq-discuss] Configuring RabbitMQ to support change in 
hostname

On 29 Mar 2013, at 23:18, Kapil Goyal <goyalk at vmware.com> wrote:

 am thinking of solving it by replacing rabbit at localhost with rabbit@<random 
string> before RabbitMQ starts for the first time. Does <random string> have 
to be DNS resolvable?

Yes. It needs to be the proper hostname for the node.

From: rabbitmq-discuss-bounces at lists.rabbitmq.com 
[mailto:rabbitmq-discuss-bounces at lists.rabbitmq.com] On Behalf Of Dushin 
Fred
Sent: Thursday, March 28, 2013 6:44 PM
To: Discussions about RabbitMQ
Subject: Re: [rabbitmq-discuss] Configuring RabbitMQ to support change in 
hostname

See

http://lists.rabbitmq.com/pipermail/rabbitmq-discuss/2013-February/025368.html

On Mar 28, 2013, at 4:53 PM, Kapil Goyal <goyalk at vmware.com> wrote:

RabbitMQ creates a new database if hostname is changed (as documented at 
<http://www.rabbitmq.com/ec2.html> http://www.rabbitmq.com/ec2.html).

I need to support the hostname change on my RabbitMQ server without 
impacting its functioning. Can I accomplish this by setting the NODENAME 
environment variable in rabbitmq-env.conf. It seems from rabbitmq-server 
script that names of database, logs etc. try to use this variable before 
resorting to using hostname. Is this the right approach? Are there any 
side-effects to look out for?

Thanks

Kapil Goyal

Sr. MTS

VMware Inc.

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