I have a Raspi 4B 8GB onto which I run NodeRed, InfluxDB2, Grafana, Mosquitto and ZigBee2MQTT. I am not that much into programming or Linux systems management and I am trying to understand why, every now and then, NodeRed slows down to unresponsiveness. The other processes on the Raspi seem to be …

So the available memory before the reboot was 5.106GB, so there is no problem with system memory available. You can also see that node red was using just 3.3% of the memory. It was using quite a lot of CPU both before and after the reboot. You can see that lxpanel was using a lot of resources. Are…

Even so, that lxpanel process is sucking up a lot of resources.

Do you know how to debug node processes? If you dont, ask chatgpt how to do it, or google some guide. Run node-red using node --inspect-brk and profile the nemory usage using chrome devtools. I would start by checking if there is a memory leak somewhere caused by one of your nodes, or the runtime. @…

So far there has been no evidence that node red is using up memory.

Yes, I am going to investigate on it. Thank you so much

Thanks for the hint, but this maybe is well over my capabilities. I normally debug using the debug node placed after the ones to investigate.

Yes, having sorted-out the errors, I am going to keep an eye on the nodered memory usage for a while and definitely try to understand more regarding lxpanel process. Thank you so much for the help given so far, much appreciated.

Could you share a very simple repro flow that you can observe the same thing happening? This way someone here can take a look. Thanks

@AllanOricil What are you referring to exactly? Anyway, after having sorted out the errors I had, it's evident that the issue was not NodeRed related but to the lxpanel process. I tried to restart that process and the memory usage went immediately down to 15%. Looking around I found a thread were …

(just passing and reading.) May I ask what the cause of the ERRORS (that you fixed) were? That [image] pacmanmt: Node object is not a node-red Node Is of slight concern - for me. Yeah, I am not fully up to speed on what all the in's and out's are. But..... is not a node-red-node is curi…

The error you are referring to was caused by moving-average-contrib that every now and then was fed with an undefined payload. I tried to find from where and when the undefined was coming from and eventually I replaced that contrib with another one. Regarding the serial connections, they are usb to…

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Memory usage grows steadily

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Memory usage grows steadily

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