[rabbitmq-discuss] Help setting you RabbitMQ and testing with the C client

[bruce bushby]

Hello

I'm looking for some help setting up rabbitmq-server.

Rabbit server installed:

rabbitmq-server-2.2.0-1.fc14.noarch

C-Client installed:

/usr/local/bin/amqp-delete-queue

/usr/local/bin/amqp-get

/usr/local/bin/amqp-declare-queue

/usr/local/bin/amqp-publish

/usr/local/bin/amqp-consume

I then went on to configure the server...

Create vhost:

[root@plxweb01 rabbitmq]#

[root@plxweb01 rabbitmq]# rabbitmqctl add_vhost testvhost

Creating vhost "testvhost" ...

...done.

[root@plxweb01 rabbitmq]# 

Create user:

[root@plxweb01 rabbitmq]#

rabbitmqctl add_user testuser testuser123

Creating user "testuser" ...

...done.

[root@plxweb01 rabbitmq]#

[root@plxweb01 rabbitmq]#

Set user permissions:

[root@plxweb01 rabbitmq]#

[root@plxweb01 rabbitmq]# rabbitmqctl set_permissions -p testvhost testuser ".*" ".*" ".*"

Setting permissions for user "testuser" in vhost "testvhost" ...

...done.

[root@plxweb01 rabbitmq]#

Declare a queue:

[root@plxweb01 rabbitmq]#

[root@plxweb01 rabbitmq]# /usr/local/bin/amqp-declare-queue --server="plxweb01" --vhost="testvhost" --username="testuser" --password="testuser123" --queue="testqueue"

testqueue

[root@plxweb01 rabbitmq]#

I don't understand the concept of an exchange, I thought there were three types (direct,fanout & topic) ......but how do I specify the exchange? Do I need to create/associate an exchange? 

[root@plxweb01 rabbitmq]#

[root@plxweb01 rabbitmq]# /usr/local/bin/amqp-publish --server="plxweb01" --vhost="testvhost" --username="testuser" --password="testuser123" --exchange="direct" --body="test message"

closing channel: server channel error 404, message: NOT_FOUND - no exchange 'direct' in vhost 'testvhost'

[root@plxweb01 rabbitmq]#

It looks like I can publish something by specifying an empty string for exchange:

[root@plxweb01 rabbitmq]# /usr/local/bin/amqp-publish --server="plxweb01" --vhost="testvhost" --username="testuser" --password="testuser123" --exchange="" --body="test message"

[root@plxweb01 rabbitmq]#

[root@plxweb01 rabbitmq]#

But I can't read from the "default exchange":

[root@plxweb01 rabbitmq]#

[root@plxweb01 rabbitmq]# /usr/local/bin/amqp-consume  --server="plxweb01" --vhost="testvhost" --username="testuser" --password="testuser123" --exchange="" cat

Server provided queue name: amq.gen-+griWnCcj8DyRPBHX5eiDQ==

queue.bind: server channel error 403, message: ACCESS_REFUSED - operation not permitted on the default exchange

[root@plxweb01 rabbitmq]#

Any help would be much appreciated!!!

Thanks

Bruce

[Valentin Bernard]

Hi,

This tutorial, especially the part about exchanges, should answer most
of your questions: http://www.rabbitmq.com/tutorials/tutorial-three-java.html

The default (or nameless) exchange is special. The broker
automatically declares a binding for every queue on the server with
the binding key identical to the queue name. You don't have to (and,
apparently, you can't) do it yourself.

Regards,

Valentin.

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