Hi, it seems that my Node-Red (On Raspi) is rebooting without any trigger or influence. That makes me unhappy, because it clears all chart data and history :frowning: Is there kind of a logfile showing such events and possible reasons for it ? BR G

You could do either, but relying on swap is how you get your sd card broken the soonest. Most of the time your system just shouldn’t use so much unless you’re running applications not suited for it. In this case log4j is using about 25% of total memory, but node-red at 254 res once again suggests th…

I am not relying on Swap, I would really prefer if the raspi would fill the RAM up to 100% ... skipping RAM that should be possible already now ... 400+ MB RAM are free the only thing I am doing that could request bigger amounts of memory, is a small number of charts (5+) filled with thousands of …

The heap overflow noted in your error report means that something, somewhere in your setup is allocating memory and not releasing it. Over time, it uses more and more, until there is none left to allocate. Adding more memory or increasing the swap space will like give you a longer time between cra…

The fact that it is using a large amount of swap generally indicates that at some point it was using a lot of RAM, though it is not now. That is not surprising since node red recently crashed because there was no free memory. As others have suggested, either node-red (or something else) is slowly …

What version of nodejs are you running on this pi?

[image] Golonder: 12.14.0 That should be ok.

[image] Golonder: is a small number of charts (5+) filled with thousands of datapoints Why not try disabling your charts and see what happens?

[image] Golonder: edit: if I open the dashboard-website in my browser the browser RAM usage jumps from 550 MB to 650 MB. Thats just a very small indication on the RAM usage of these charts Are you running this browser (and thus a desktop environment) on that same pi as well?

Incidentally, using SWAP on a Pi isn't just a way to wear out the SD-Card rapidly, it is a disaster for performance as it has a double impact. Firstly the SD-Card is desperately slow so the reading/writing to it slows the system to a crawl very quickly. The process also uses a lot of CPU. You need…

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Unplanned Restart / Reboot?

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system Closed 27 April 2020 12:42 47

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Unplanned Restart / Reboot?

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