Node-red infinite loop

General
1

Due to my mistake, I find myself with node-red inaccessible.
This is what happens:

18 Nov 14:19:28 - [info] Node-RED version: v1.2.5
18 Nov 14:19:28 - [info] Node.js  version: v12.19.0
18 Nov 14:19:28 - [info] Linux 5.4.72-v7l+ arm LE
18 Nov 14:19:29 - [info] Loading palette nodes
18 Nov 14:19:30 - [warn] [RED.events] Deprecated use of "nodes-started" event from "/home/pi/.node-red/node_modules/node-red-contrib-actionflows/actionflows/actionflows.js:615:14". Use "flows:started" instead.
18 Nov 14:19:31 - [info] Dashboard version 2.23.4 started at /ui
18 Nov 14:19:32 - [info] Settings file  : /home/pi/.node-red/settings.js
18 Nov 14:19:32 - [info] HTTP Static    : /home/pi/static
18 Nov 14:19:32 - [info] Context store  : 'default' [module=memory]
18 Nov 14:19:32 - [info] User directory : /home/pi/.node-red
18 Nov 14:19:32 - [info] Server now running at http://127.0.0.1:1880/
18 Nov 14:19:32 - [info] Active project : LRHome
18 Nov 14:19:32 - [info] Flows file     : /home/pi/.node-red/projects/LRHome/lrhome.json
18 Nov 14:19:32 - [info] Starting flows
18 Nov 14:19:32 - [error] [config:c29ecfbf.afc65] Error: Invalid property expression: zero-length
18 Nov 14:19:32 - [info] Started flows
18 Nov 14:19:32 - [info] [sqlitedb:b9c2c79a.f51318] opened /home/pi/LRHome.db ok
18 Nov 14:19:32 - [info] [mqtt-broker:mqtt@LRHome] Connected to broker: mqtt://192.168.251.50:1883
18 Nov 14:19:33 - [error] [function:865c2eb3.95e9b] [OK!] nE=0 LOC=mns_lgt ON=5 rtn=on
18 Nov 14:19:33 - [error] [function:865c2eb3.95e9b] [OK!] nE=0 LOC=mns_lgt ON=5 rtn=on
18 Nov 14:19:33 - [error] [function:865c2eb3.95e9b] [OK!] nE=0 LOC=mns_lgt ON=5 rtn=on
18 Nov 14:19:33 - [error] [function:865c2eb3.95e9b] [OK!] nE=0 LOC=ppn_lgt ON=1 rtn=on
18 Nov 14:19:33 - [error] [function:865c2eb3.95e9b] [OK!] nE=0 LOC=ppn_lgt ON=1 rtn=on
18 Nov 14:19:33 - [error] [function:865c2eb3.95e9b] [ERR] nE=0 LOC=_ ON=0 rtn=off
18 Nov 14:19:33 - [error] [function:865c2eb3.95e9b] [ERR] nE=0 LOC=_ ON=0 rtn=off
(...never end...)
18 Nov 14:31:23 - [error] [function:865c2eb3.95e9b] [ERR] nE=0 LOC=_ ON=0 rtn=off
18 Nov 14:31:23 - [error] [function:865c2eb3.95e9b] [ERR] nE=0 LOC=_ ON=0 rtn=off
(CTRL-C)
18 Nov 14:31:23 - [error] [function:865c2eb3.95e9b] [ERR] nE=0 LOC=_ ON=0 rtn=off
18 Nov 14:31:23 - [error] [mqtt-broker:mqtt@LRHome] Error stopping node: Close timed out
18 Nov 14:31:23 - [info] Stopped flows

I found a reference to the function indicated in the log in the lrhome.json file:

  {
        "id": "865c2eb3.95e9b",
        "type": "function",
        "z": "a46ce386.b7383",
        "name": "",
(...)
"wires": [
            [
                "1305eeb0.a16011",
                "d9ae59d4.cab1d8"
            ]
        ]
    },

I tried to:

  • delete the included function, the one that generates the infinite loop
  • replace the json file
  • reboot the system

I was hoping to be able to recompile node red from the web, but it wasn't possible.

I replaced the json file with one from a few days ago. No changes.

Do you have a suggestion to get out of this impasse, excluding a Colt or a slipknot? :slight_smile:

LR

2

If you restart Node-RED with the --safe command-line argument then it will load your flows without starting them. You can then edit them to remove the offending node(s) and hit deploy to start things up.

3

Grazie mille!!!!!!
thanks you!!!

4

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