Anlaysing NodeRED memory - problem "Referenceerror: process is not defined"

[lostbits]

Hey there,

I am using NodeRED 2.2.0 with nodeJS 16.3 on 2 machines using windows 10. On both machines I like to analyze the memory consumption, since I sometimes see a heap error like this:

Since there is a pretty good hint in the FAQ to this, I generated the following Flow:

[{"id":"da3d35e1314f395a","type":"inject","z":"ec5785f02d0d6ea6","name":"","props":[{"p":"payload"},{"p":"topic","vt":"str"}],"repeat":"","crontab":"","once":false,"onceDelay":0.1,"topic":"","payload":"","payloadType":"date","x":260,"y":480,"wires":[["1b4aac38a3d0cd92"]]},{"id":"1b4aac38a3d0cd92","type":"function","z":"ec5785f02d0d6ea6","name":"GetMem","func":"\nlet mem = process.memoryUsage()\nconst formatMem = (m) => (m / 1048576).toFixed(2)\n\nmsg.topic = 'Memory Use (MB)'\nmsg.payload = {\n    Residentset: formatMem(mem.rss),\n    HeapUsed: formatMem(mem.heapUsed),\n    HeapTotal: formatMem(mem.heapTotal),\n    'External C++': formatMem(mem.external),\n    Unit:\"MB\"\n}\n\nreturn msg","outputs":1,"noerr":0,"initialize":"","finalize":"","libs":[{"var":"process","module":"process"}],"x":400,"y":480,"wires":[["24ec3a426815da70"]]},{"id":"24ec3a426815da70","type":"debug","z":"ec5785f02d0d6ea6","name":"","active":true,"tosidebar":true,"console":false,"tostatus":false,"complete":"false","statusVal":"","statusType":"auto","x":550,"y":480,"wires":[]}]

On my first machine, it runs fine. On the 2nd machine - with NodeRED I get the following error:

, although the basic function like described in the FAQ (also using process) at the first start of NodeRED runs fine.

I wonder, why on one machine it works and on the other not.

Any tips are most welcome.