CODEWITHSUNDEEP
beagleboneblacknode-red
ThisEndUp
ThisEndUp

Reputation: 41

stopping node-red: Unable to listen on http://127.0.0.1:1880/

I'm trying to add the dashboard nodes to node-red on a Beaglebone.

In several places on the Internet, instructions for adding features to node-red begin by saying "stop node-red". But they don't say how to do that.

On the Beaglebone Black WiFi, node-red v0.15.2 comes installed and starts automatically. So far as I can tell, the command

sudo node-red stop

should stop it, but this always results in a string of messages that end up with

19 May 16:13:05 - [warn] Communication server error: Error: listen EADDRINUSE :::1880
19 May 16:13:05 - [error] Unable to listen on http://127.0.0.1:1880/
19 May 16:13:05 - [error] Error: port in use

Nothing I've found tells how to get beyond this. The closest was a post that suggested running

ps -ef

and then killing all the node-red processes, but the next post in that sequence indicated that the result was that they immediately restarted themselves.

What is the correct way to stop node-red on the Beaglebone?

Or more generally, how can I add the dashboard module to the existing node-red preinstalled on the Beaglebone Black?

Thanks!

Upvotes: 2

Views: 4520

Answers (1)

hardillb
hardillb

Reputation: 59816

Node-RED is being run under SystemD as a service

use:

sudo service nodered stop

Also node-red stop won't stop Node-RED it will just try and start a new instance with a flow files called stop. The command you were probably looking for is node-red-stop (notice the hyphen between red and stop).

Also you do not need to stop Node-RED to install a new set of nodes, you can just install them then restart Node-RED and it will pick up the new nodes. So install and kill should work,

Upvotes: 1

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