Hi, I´m using Node-Red on 4 devices :face_with_hand_over_mouth: On one RPi I can see Node-Red restarts every few weeks, I saw this line: Sep 23 09:01:59 openwb kernel: Node 0 active_anon:54128kB inactive_anon:875100kB active_file:1932kB inactive_file:1780kB unevictable:16kB isolated(anon):0kB isol…

the untervoltage has nothing to do with my problem. so my search goes on. Today I discovered something very strange that I cannot explain: I query one Eastron SDM630 with USB RS485: [grafik] I copied my flow from another RPi3, where I query 3x SDM72 & 1x SDM630. the SDM630 with 38,4kBaud take…

I don´t understand NR behavior. the other ("customer") node-red RPi3 runs over 20 days with constant 29% ram, after 20 days ram rose >40%. I didn´t change anything, just look "top". my RPi3 now rose over 40% too and what I also don't understand are these cpu peaks: [grafik] every 3 min. I´ve no…

[image] Becker: System Time Change Detected - refreshing schedules! If the system time was not changed then this typically occurs due to blocking code elsewhere in your application what does that mean? could this be reason for cpu peaks Reason - no. Clue - yes. As it says, something is block…

I repeat :woozy_face: no audio, no images, no syn. file reads or writes, no larage arrays. Now I deleted the average node (from simulator RPi2), and I have to wait for several days. the average node gets every 5s: [grafik] the counter node gets some crap from cronplus node: [grafik]

I came across a hot lead: I replaced all cronplus nodes by injects: [grafik] never saw such a low mem% and cpu load goes to 0 - 0,01 I think I have to talk to Maintainer steve-mcl :melting_face:

Could you restore the original flow and export all the cron nodes, then go back to the new flow and export all the equivalent Inject nodes please, so we can see what the difference is.

[image] Becker: I came across a hot lead: I replaced all cronplus nodes by injects: [grafik] never saw such a low mem% and cpu load goes to 0 - 0,01 You are simply masking the real issue. Yes, Cron-plus has additional data in its msg (for advanced usage) - its what is holding on to extra …

two of several cronplus nodes for example: [{"id":"f575aa0996438761","type":"cronplus","z":"5f6e5e5e2b5d2c03","name":"Daten","outputField":"payload","timeZone":"","storeName":"","commandResponseMsgOutput":"output1","defaultLocation":"","defaultLocationType":"default","outputs":1,"options":[{"name":…

Interseting. I didnt consider it might be due to excessive context usage in the schedules. There might be something in it. You can of course modify your flows to remove the context inside cron nodes to see if it helps (and it should remove the need to re-write all your flows: instead, just update…

I don't understand your process, I think it´s complicated and I don't like that! I´ve rebuild my flow with injects and I´ll wait a few weeks, if the memory problem is gone or not. what I don’t quite understand is my other node-red main instance on a virtual machine (x64, much more power than a RPi…

[image] Becker: I think it´s complicated I'm guessing you haven't learned about the link-call. Its akin to a subroutine and will help I'm many situations to reduce code duplication. It's actually a simplification in most cases. If you're not interested in learning, that's ok too

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Node-Red on RPi restarts after ~2 weeks

General

Steve-Mcl 19 November 2024 16:44 45

Might be of interest: Node-red + MCP23017 (x5) slowing down - #27 by TadyTheFish

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Unplanned Restart / Reboot? General	44	3252	27 February 2020
Memory usage grows steadily General	32	579	29 June 2025
Memory leakage of Node-Red on RasPI General	8	5780	28 March 2019
Advice needed on Pi CPU usage General	153	5199	13 April 2021
Node Red crashed - why? General	11	824	22 March 2022

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Node-Red on RPi restarts after ~2 weeks

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