Node-RED crashes randomly

General
1

Hi!
I have multiple instances from Node-RED on different devices. On one big one for a lot of smart home stuff I have crashes almost every day. It is running in a docker container. A lot of other container are up for months on the device. I have no idea how to start the search why its crashing. For the beginning here is the console log from docker - any tipps how to start the search of the reason?

...
2023-09-10T01:17:36.956524658Z 10 Sep 03:17:36 - [info] [daylight-rgbw:4e924b22.61ab14] Sun position:-0.48039423692328814
2023-09-10T01:17:36.956636556Z 10 Sep 03:17:36 - [info] [daylight-rgbw:4e924b22.61ab14] Sun position fraction:-0.30582846975680167
2023-09-10T01:17:36.956700825Z 10 Sep 03:17:36 - [info] [daylight-rgbw:4e924b22.61ab14] Color-temp:2600
2023-09-10T01:22:36.961393325Z 10 Sep 03:22:36 - [info] [daylight-rgbw:4e924b22.61ab14] Received Topic:date-time
2023-09-10T01:22:36.961441380Z 10 Sep 03:22:36 - [info] [daylight-rgbw:4e924b22.61ab14] Received dt:1694308956960
2023-09-10T01:22:36.961633269Z 10 Sep 03:22:36 - [info] [daylight-rgbw:4e924b22.61ab14] Sun position:-0.4730633509308233
2023-09-10T01:22:36.961734391Z 10 Sep 03:22:36 - [info] [daylight-rgbw:4e924b22.61ab14] Sun position fraction:-0.30116148278502597
2023-09-10T01:22:36.961794216Z 10 Sep 03:22:36 - [info] [daylight-rgbw:4e924b22.61ab14] Color-temp:2600
2023-09-10T01:27:26.779503320Z ./entrypoint.sh: line 14:     8 Killed                  /usr/local/bin/node $NODE_OPTIONS node_modules/node-red/red.js --userDir /data $FLOWS "${@}"
2023-09-10T01:27:27.882234384Z 10 Sep 03:27:27 - [info] 
2023-09-10T01:27:27.882251474Z 
2023-09-10T01:27:27.882256431Z Welcome to Node-RED
2023-09-10T01:27:27.882260500Z ===================
2023-09-10T01:27:27.882264441Z 
2023-09-10T01:27:27.882772594Z 10 Sep 03:27:27 - [info] Node-RED version: v3.0.2
2023-09-10T01:27:27.882893666Z 10 Sep 03:27:27 - [info] Node.js  version: v16.20.0
2023-09-10T01:27:27.882992917Z 10 Sep 03:27:27 - [info] Linux 5.15.30-2-pve x64 LE
2023-09-10T01:27:28.199756718Z 10 Sep 03:27:28 - [info] Loading palette nodes
2023-09-10T01:27:28.905581829Z 10 Sep 03:27:28 - [info] node-red-contrib-ccu version: 3.4.2
...
2

Are you sure its crashing, look at this logfile it looks more to me the the nr instance is restarted for some reason.
What's in the entrypoint.sh on line 14?

3

I think it is crashing. If I do a restart on the container it looks like that:

2023-09-05T19:15:02.947730832Z 5 Sep 21:15:02 - [info] [ccu-connection:192.168.1.37] values saved to /data/ccu_values_192.168.1.37.json
2023-09-05T19:15:02.954104110Z 5 Sep 21:15:02 - [info] [miio-roborock-server:Vacuum] Miio Roborock: Destroyed
2023-09-05T19:15:02.958986697Z 5 Sep 21:15:02 - [info] [ccu-connection:192.168.1.37] de-init BidCos-RF http://192.168.1.34:2049 done
2023-09-05T19:15:02.961254894Z 5 Sep 21:15:02 - [info] [ccu-connection:192.168.1.37] de-init VirtualDevices http://192.168.1.34:2049 done
2023-09-05T19:15:02.964373151Z 5 Sep 21:15:02 - [info] [ccu-connection:192.168.1.37] de-init HmIP-RF http://192.168.1.34:2049 done
2023-09-05T19:15:02.964831115Z 5 Sep 21:15:02 - [info] [ccu-connection:192.168.1.37] xmlrpc server closed
2023-09-05T19:15:02.964859318Z 5 Sep 21:15:02 - [info] [ccu-connection:192.168.1.37] rpc close done
2023-09-05T19:15:02.969140149Z 5 Sep 21:15:02 - [info] [zigbee2mqtt-server.***] MQTT Close
2023-09-05T19:15:02.969366378Z 5 Sep 21:15:02 - [info] [zigbee2mqtt-server ***] MQTT End
2023-09-05T19:15:11.156146509Z 5 Sep 21:15:11 - [info] Stopped flows
2023-09-05T19:15:12.134014343Z 5 Sep 21:15:12 - [info] 
2023-09-05T19:15:12.134039034Z 
2023-09-05T19:15:12.134043774Z Welcome to Node-RED
2023-09-05T19:15:12.134047604Z ===================
2023-09-05T19:15:12.134051375Z 
2023-09-05T19:15:12.134561683Z 5 Sep 21:15:12 - [info] Node-RED version: v3.0.2
2023-09-05T19:15:12.134669879Z 5 Sep 21:15:12 - [info] Node.js  version: v16.20.0
2023-09-05T19:15:12.134758849Z 5 Sep 21:15:12 - [info] Linux 5.15.30-2-pve x64 LE
2023-09-05T19:15:12.431505766Z 5 Sep 21:15:12 - [info] Loading palette nodes

I think the entrypoint comes from this setting:

grafik
grafik2010×765 73.9 KB

But I have no idea what this is, furthermore I'd never set this setting. It is set automatically whith the default docker file / image layers:

8 ENTRYPOINT ["docker-entrypoint.sh"]

Source of dockerfile

4

I was getting this error too. I think the issue is if you set resource limits on the container.

I had mine set for 1gb and 0.5 cpu. After removing these limits it's working fine.

5

I have no limits, CPU limit, memory limit and memory reservation. The host has 4GB of memory.

6

Found out that node red increases the memory usage constantly. If the memory is full it crashes. I will make a new thread to find out what the memory usage increases all the time. Thank you to @MyRandomThoughts for the memory-limit-tip.

Here you see the memory by time. The drop means a crash. If I increase the memory of the machine, it took longer until the next crash happend. :slight_smile:

grafik
grafik2138×660 88.1 KB

7

Start by searching the forum. The subject of how to find out how to find out what is causing increasing memory comes up regularly.

8

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