Strange random numeric queues

[Nils]

I get a lot of strange random numeric queues that pops up. It seems to be duplicates of the "real" messages that ends up in the correct queue but I can't be hundred percent sure. 

Does anyone have any idea of what could cause this? 

It looks like in the image below

[Luke Bakken]

Hello,

More than likely you have a bug in your application(s). You can use the event exchange to see when these queues are being created - https://www.rabbitmq.com/event-exchange.html

It would be helpful to know what version of RabbitMQ and Erlang you are using.

Thanks,

Luke

[Nils]

Thank you for your suggestion. The version is RabbitMQ 3.6.12, Erlang 20.1. I know it's pretty old

I've enabled the event exchange now, hopefuly that will show me something. 

[Nils]

I'm still having problems with this. I've upgraded everything that's possible to upgrade, now running RabbitMQ 3.12.5 (with Erlang 25.3.2.6). I'm connecting from camel in karaf with blueprint configuration. Here is the blueprint I'm using (with ip and credentials redacted) 

<?xml version="1.0" encoding="UTF-8"?>
<blueprint xmlns="http://www.osgi.org/xmlns/blueprint/v1.0.0">
<bean id="rabbitConnectionFactory" class="com.rabbitmq.client.ConnectionFactory">
<property name="host" value="ip address to RabbitMQ server "/>
<property name="username" value="theUserName"/>
<property name="password" value="thePassword"/>
</bean>
<camelContext xmlns="http://camel.apache.org/schema/blueprint">
<route id="TestQueues">

<from uri="rabbitmq:TestExchange?routingKey=TestQueue&amp;autoDelete=false"  />

<!-- TODO: handle the message... -->
</route>
</camelContext>
</blueprint>

The messages that I receive in the events queue are: 

1. queue. created and this is a numeric queue, not the one I tried to connect to. 

2. binding. created to the created queue

3. consumer. created to the same queue

RabbitMQ is installed on a Windows 2016 server in google cloud. The karaf-server is installed on a local centos-machine. And everything is updated to latest versions. 

I can also add that there is another connection, not handled by me, form .net application. This seems to work without any problem at all. 

Anyone's got any idea what the reason for this could be? 

[Terry Rinck]

I'm not familiar with Camel but are you specifying queues in your setup? Found this in the docs:
https://camel.apache.org/components/4.0.x/spring-rabbitmq-component.html#_endpoint_query_option_queues

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[Nils]

Thank you for your suggestion but the link you're referring to is for Spring-RabbitMQ. This is the documentation for my situation https://camel.apache.org/components/3.21.x/rabbitmq-component.html 

[Luke Bakken]

Hi Nils,

Thanks for the update. We really can't assist you without a way to reproduce this issue. If you could provide a git repository that I can clone, build, and run to see the issue I'm sure we can figure it out. As I said before, this is most likely due to a bug in your application or a library that it uses.

Were you able to observe these queues being created by using the event exchange?

Thanks,

Luke