Aedes broker does not respond to localhost or 127.0.0.1 after a node-red project is pulled down from github

[jmorris644]

I manage node-red replicated projects through github.

When I push and pull a node-red instance that contains the Aedes broker node, the node will not respond to MQTT nodes that are configured with either localhost or 127.0.0.1 as their server. I can change the server on the MQTT nodes to any other server and it works.

If I delete the Aedes broker node and drop it on the workspace and redeploy then it all works as expected. localhost and 127.0.0.1 can be accessed.

[martin-doyle]

Do you have a repository I can reproduce your request?

[jmorris644]

I cannot share the one that I am currently working on. But let me see if I can create a test one and reproduce the issue. Be back soon...

[jmorris644]

I created a test project with just 3 nodes. I could not recreate the issue.
So I did some more testing. I have found what is causing the issue. It is coming from the flow that I have created.

I have some IOT devices that maintain the address of the MQTT broker's FQN unless restarted. Even if the ip address at the router changes for the Broker's FQDN. So when I see a device that wants to talk to the incorrect broker I trap the payload.packet.topic, reformat it into a command msg.topic and send it back to the device to correct its behavior.

I start this message flow by grabbing the publish messages (from the 2nd broker node output) and checking it.

When the broker starts up it issues 2 publish messages itself. The 1st one is "$SYS/d0c3a879-3fbb-42a9-a74e-9438b2f288a0/new/clients" and the 2nd one is "$SYS/d0c3a879-3fbb-42a9-a74e-9438b2f288a0/disconnect/clients".

So my code sees these publish messages and reformats them into the msg.topic "$SYS/cmnd/new/reset" and "$SYS/cmnd/disconnect/reset" respectively.

So when these commands are then sent back via a MQTT out node, I think it messes with the broker node itself.

I am working on adjusting my flow so that I ignore the topics that start with $SYS.