Why I'm unable to connect to node?

[Nikita Black]

Hello. I'm an absolute beginner. I'm a client developer, so I don't know much about server stuff. In my company there's a department that manages rabbitmq servers, but for testing I want to use it on my local machine. Is it possible at all? I installed rabbitmq for windows (win 7), installed erlang. I didn't do any configuration simply I don't know where to start. I just run rabbitmqctl status and get:

Status of node 'rabbit@WS-6GYP022' ...
Error: unable to connect to node 'rabbit@WS-6GYP022': nodedown

DIAGNOSTICS
===========

attempted to contact: ['rabbit@WS-6GYP022']

rabbit@WS-6GYP022:
  * connected to epmd (port 4369) on WS-6GYP022
  * epmd reports: node 'rabbit' not running at all
                  other nodes on WS-6GYP022: ['RabbitMQ']
  * suggestion: start the node

current node details:
- node name: 'rabbitmqctl400221@WS-6GYP022'
- home dir: Z:\
- cookie hash: 3ePVXm8NmdnVDpOBgNYThA==

I absolutelly have no clue what is this. I spent much time googling, but couldn't find a solution. But what I see is that epmd (don't know what is it) have a node (the same thing - don't know what is it) with a name 'RabbitMQ', i.e. different from what is used with rabbitmqctl (but why?). Ok, I'm trying rabbitmqctl -n RabbitMQ@WS-6GYP022 status and get:

Status of node 'RabbitMQ@WS-6GYP022' ...
Error: {undef,[{rabbit,status,[],[]},
               {rpc,'-handle_call_call/6-fun-0-',5,
                    [{file,"rpc.erl"},{line,205}]}]}

Can somebody please help me and explain all this basic things? Thank you.

[Michael Klishin]

On 4 September 2014 at 18:17:20, Nikita Black (mynameisn...@gmail.com) wrote:
> > I'm a client developer, so I don't know much about server stuff.
> In my company there's a department that manages rabbitmq servers,
> but for testing I want to use it on my local machine. Is it possible
> at all?

It is.

> I just run rabbitmqctl status and get:
>
> > Status of node 'rabbit@WS-6GYP022' ...
> > Error: unable to connect to node 'rabbit@WS-6GYP022': nodedown
> >
> > DIAGNOSTICS
> > ===========
> >
> > attempted to contact: ['rabbit@WS-6GYP022']
> >
> > rabbit@WS-6GYP022:
> > * connected to epmd (port 4369) on WS-6GYP022
> > * epmd reports: node 'rabbit' not running at all
> > other nodes on WS-6GYP022: ['RabbitMQ']
> > * suggestion: start the node
> >
> > current node details:
> > - node name: 'rabbitmqctl400221@WS-6GYP022'
> > - home dir: Z:\
> > - cookie hash: 3ePVXm8NmdnVDpOBgNYThA==

How did you install RabbitMQ? Have you started the service?

This means that rabbitmqctl managed to contact epmd (the daemon that manages
Erlang node communication) but RabbitMQ isn't running.

> I spent much time googling,
> but couldn't find a solution. But what I see is that epmd (don't
> know what is it) have a node (the same thing - don't know what is
> it) with a name 'RabbitMQ', i.e. different from what is used with
> rabbitmqctl (but why?). Ok, I'm trying rabbitmqctl -n RabbitMQ@WS-6GYP022
> status and get:
>
> > Status of node 'RabbitMQ@WS-6GYP022' ...
> > Error: {undef,[{rabbit,status,[],[]},
> > {rpc,'-handle_call_call/6-fun-0-',5,
> > [{file,"rpc.erl"},{line,205}]}]}

What makes you believe you need to pass the node argument exactly?
The last error message basically says the same thing: RabbitMQ is not started.
 
Take a look at http://www.rabbitmq.com/install-windows.html which
describes how to start the service. Inspecting log files may give you a clue, too,
see http://www.rabbitmq.com/relocate.html to determine their location on your system.

There's also http://www.rabbitmq.com/windows-quirks.html.
--
MK

Staff Software Engineer, Pivotal/RabbitMQ

[Nikita Black]

Thank you. I uninstalled erlang and rabbitmq and followed the instructions (actually I followed them before). But this time I installed erlang 32bit (my system is 64) and both epmd and rmq are in Program Files (x86) folder (previously they were in different folders). Now everything works.

четверг, 4 сентября 2014 г., 17:05:31 UTC+2 пользователь Michael Klishin написал:

[Michael Klishin]

Interesting. Would you mind me asking for the exact paths in both cases?

MK

[Nikita Black]

It was
C:\Program Files (x86)\RabbitMQ Server
C:\Program Files\erl6.1
So I assume that rmq was 32bit while epmd 64.

Now both in
C:\Program Files (x86)

четверг, 4 сентября 2014 г., 17:55:47 UTC+2 пользователь Michael Klishin написал: