Deploy too long in a Raspberry device

General
1

Hi Dears,

I have a node-red application running successfully on a Raspbian in a Raspberry PI 4. The problem is that when I make any change to a flow or subflow it takes a long time to complete the deployment (15 minutes). Running on my notebook, the deployment is immediate. Any suggestions? Below some information about.

Device: Raspberry PI-4
Memory: 6.42GB Free: 2.71GB
SD Card: 53GB Used: 3.6GB
Other tasks:None
Node-Red Version: 1.2.9
Node.JS Version: 10.23.1
Flows: Read data from PLC and insert into MS-SQL-Server Tables
Deploy Type Used: Modified Nodes

Thanks,

Roberto

2

Have you checked the Node-RED log for issues?

These are extremely old versions that should no longer be in use.

3

Also run top in a command window to see if anything is hogging the processor.

4

What setting on the Deploy tab have you set?

Screenshot 2024-12-09 at 6.10.21 AM
Screenshot 2024-12-09 at 6.10.21 AM350×444 20.4 KB

If it is 'Full' try changing it to 'Modified Floos' and see if that makes a difference.

5

Thanks Julian,

I will update the version to the latest version.

6

Thanks Paul,

I was already using the 'Modified Flows' option. But the time was too long also with this option.

7

Have you ruled out network latency? I occasionally have the same issue with a device and figured out rebooting my router fixed it.

8

Thanks everyone. I installed version 4.05 of Node-Red and 18.20.5 of node.js on Raspberry and everything worked. Deployment time is now immediate.

Best Regards,

Roberto

1 Like
9

In my previous installation I had node-red starting automatically with the raspberry boot. In this new installation, even repeating the same commands I can't get it to execute. It gives the following error: 'Process: 572 ExecStart=/usr/bin/env node-red-pi (code=exited, status=127)'. Any suggestions?

10

Did you use the official installer script?

11

I think so. I used 'npm install -g --unsafe-perm node-red'

12

That does not seem to be the official Raspberry Pi install script as described at https://nodered.org/docs/getting-started/raspberrypi

13

I reinstalled node-red with this oficial script, but when I run the script node-red-start it seems that it does not find the executable file. Shows the message '/usr/bin/env: ‘node-red’: No such file or directory'

14

There are several possible ways that Node-red can be started:
/etc/systemd/system/multi-user.target.wants/nodered.service executes /usr/bin/env node-red-pi
/usr/bin/node-red-start executes node-red-pi
/usr/bin/node-red-pi executes /usr/bin/env node <some jiggery-pokery with the path>/red.js
and node-red is interpreted by node and seems to do <some (different) jiggerypokery>/red.js

I can't see where the message you report comes from.

15

Post the log file that the installer should have created, /var/log/nodered-install.log or something similar, I am on my phone so can't check.

16

Dears,

I discovered the problem. I had installed NVM. And in one of the error logs there was a message saying that start at boot does not work with NVM. I reinstalled Node-Red without NVM and it worked.

Thanks everyone,

Roberto

1 Like