[rabbitmq-discuss] Naming RabbitMQ nodes with complete domain names

Sat Feb 19 21:07:56 GMT 2011

Thanks Alvaro. Unfortunately this still doesn't work for me. The steps
I followed are:

a) Stop rabbitmq
b) Change the option -sname to -name in rabbitmq-multi
c) Change the node name initialization in rabbitmq-env from
NODENAME=rabbit@${HOSTNAME%%.*} to #NODENAME=rabbit@${HOSTNAME}
d) Change the node names in rabbitmq.config to use full host names.
e) Cleare the mnesia database.
f) Reboot the complete machine
g) Start rabbitmq

The error message remains the same:
{error_logger,{{2011,2,19},{16,4,40}},"Can't set short node
name!\nPlease check your configuration\n",[]}

Regards,
Max.

On Sat, Feb 19, 2011 at 1:19 PM, Alvaro Videla <videlalvaro at gmail.com> wrote:
> Restart the epmd process or if you are just running RabbitMQ then kill it after you stop the server.
>
> Hope that helps.
>
> Sent from my iFad
>
> On Feb 20, 2011, at 1:49 AM, Max Bridgewater <max.bridgewater at gmail.com> wrote:
>
>> Hi Alvaro,
>>
>> I believe you are right. The according modification of the rabbitmq
>> scripts seems not that straightforward. Here is what I've got sofar:
>>
>> a) Changed the option -sname to -name in rabbitmq-multi
>> b) Changed the node name initialization in rabbitmq-env from
>> NODENAME=rabbit@${HOSTNAME%%.*} to #NODENAME=rabbit@${HOSTNAME}
>> c) Changed the node names in rabbitmq.config to use full host names.
>> d) Cleared the mnesia database.
>>
>> Now, when I attempt to start the nodes, hereunder is what I get.
>> Apparently, despite these modifications rabbitmq/erlang is still
>> attempting to set the short name.
>>
>> Any idea what else I'm missing?
>> Thanks,
>> Max.
>>
>> ============================================
>> Starting all nodes...
>> Starting node rabbit at ec2-174-122-225-215.compute-1.amazonaws.com...
>> Activating RabbitMQ plugins ...
>> 0 plugins activated:
>>
>> {error_logger,{{2011,2,19},{12,33,32}},"Can't set short node
>> name!\nPlease check your configuration\n",[]}
>>
>>
>> On Sat, Feb 19, 2011 at 12:32 AM, Alvaro Videla <videlalvaro at gmail.com> wrote:
>>> Have you tried changing the Erlang option -sname to -name?
>>>
>>> That's the way Erlang uses to specify long names.
>>>
>>> See http://erlang.org/doc/man/erl.html and then modify your rabbitmq-server script accordingly.
>>>
>>> Cheers,
>>>
>>> Alvaro
>>>
>>> Sent from my iFad
>>>
>>> On Feb 19, 2011, at 10:51 AM, Max Bridgewater <max.bridgewater at gmail.com> wrote:
>>>
>>>> Hi,
>>>>
>>>> This is probably a silly question but it really baffles me right now.
>>>> The original issue is this: I'm trying to use JInterface to connect to
>>>> a rabbitmq cluster hosted on EC2. But I keep getting "Cannot connect
>>>> to peer node". My understanding is that this error is happening
>>>> because I'm using the address 'rabbit at domain.org' to contact the
>>>> remote RabbitMQ node named: rabbit at domain. (Note the missing TLD).
>>>> That is, because there is no exact  match between the node name given
>>>> to JInterface and the name of the node it is connecting to, the
>>>> connection fails.
>>>>
>>>> I desperately tried configuring RabbitMQ to take the complete domain
>>>> name (domain.org) instead of just the short domain name (domain). Any
>>>> suggestion on how to resolve this issue?
>>>>
>>>> Beyond this, this problem begs the question of how do RabbitMQ nodes
>>>> located on different machines across different domains communicate
>>>> with each other if the only way they can be referred to each other by
>>>> short name? Up until now, I've only clustered nodes on the same
>>>> machine.
>>>>
>>>> I'm sure missing something. Please enlighten me.
>>>>
>>>> Sincerely,
>>>> Max.
>>>> _______________________________________________
>>>> rabbitmq-discuss mailing list
>>>> rabbitmq-discuss at lists.rabbitmq.com
>>>> https://lists.rabbitmq.com/cgi-bin/mailman/listinfo/rabbitmq-discuss
>>>
>