checkLifelineHealth strategy

[fabnavigator]

I want to periodically test the health of my nodes and store the results in a database. I can loop through them and call checkLifelineHealth, but I imagine that I should only be doing one at a time. Can anyone share how they did this?

[marcus-j-davies]

@fabnavigator

I needed a break from other things, so see the attached importable flow I wrote to do it
it should cater for most of what you need - just swap the controller node with yours
use link nodes if you need to, doesn't matter how its passed/retrieved from controller

Although try to schedule it when network traffic is low - maybe during the night.

[{"id":"3f31d3da958506a5","type":"tab","label":"Scheduled Health Check","disabled":false,"info":"","env":[]},{"id":"afe35a0041f31a84","type":"inject","z":"3f31d3da958506a5","name":"Schedule (12 hours)","props":[{"p":"payload"},{"p":"topic","vt":"str"}],"repeat":"43200","crontab":"","once":false,"onceDelay":0.1,"topic":"","payload":"","payloadType":"date","x":260,"y":140,"wires":[["f1143e96498d81f3"]]},{"id":"f1143e96498d81f3","type":"function","z":"3f31d3da958506a5","name":"Set Variables","func":"// Target Nodes - Do not query Battery devices.\nflow.set(\"Nodes\",[4,5,7,8])\n\n// To Keep track of where we are in our nodes check\nflow.set(\"Index\",0)\n\n// Rounds 1-5\n// Higher = Better Accuracy, Takes longer, More Network Congestion, \n// Lower =  Less Accuracy, Quicker, Less Network Congestion\nflow.set(\"Rounds\",2)\n\nreturn msg\n","outputs":1,"noerr":0,"initialize":"","finalize":"","libs":[],"x":530,"y":140,"wires":[["fb11adae5aeda7d9"]]},{"id":"fb11adae5aeda7d9","type":"function","z":"3f31d3da958506a5","name":"Execute Next Check","func":"// Get Our Vairables\nconst Rounds = flow.get(\"Rounds\")\nconst Nodes = flow.get(\"Nodes\");\nlet Index = flow.get(\"Index\");\n\n// Check if we have exceeded our nodes to query\nif((Index + 1) > Nodes.length){\n    return; // no more to do - all this will happen again at the next schedule\n}\n\n// Get next node, and increment index\nconst Node = Nodes[Index]\nIndex++;\nflow.set(\"Index\",Index);\n\n// Execute check\nlet Message = {\n    payload: {\n        mode: \"DriverAPI\",\n        method: \"checkLifelineHealth\",\n        params: [Node, Rounds]\n    }\n}\nreturn Message","outputs":1,"noerr":0,"initialize":"","finalize":"","libs":[],"x":340,"y":560,"wires":[["37b3ec92bc61ed9c"]]},{"id":"37b3ec92bc61ed9c","type":"zwave-js","z":"3f31d3da958506a5","d":true,"networkIdentifier":"2","serialPort":"Select Port","name":"ZWave Controller","encryptionKey":"","encryptionKeyS2U":"","encryptionKeyS2A":"","encryptionKeyS2AC":"","ackTimeout":"","controllerTimeout":"","sendResponseTimeout":"","sendDataCallback":"","serialAPIStarted":"","logLevelPin":"none","logLevel":"none","logFile":"","logNodeFilter":"","sendUsageStatistics":true,"valueCacheDiskThrottle":"normal","customConfigPath":"","intvwUserCodes":false,"softResetUSB":false,"outputs":1,"disableOptimisticValueUpdate":false,"x":570,"y":560,"wires":[["c72f7845a50b21d7"]]},{"id":"c72f7845a50b21d7","type":"switch","z":"3f31d3da958506a5","name":"Check if this is a health result","property":"payload.event","propertyType":"msg","rules":[{"t":"eq","v":"HEALTH_CHECK_RESULT","vt":"str"}],"checkall":"true","repair":false,"outputs":1,"x":760,"y":400,"wires":[["af125ecad832abf3","fb11adae5aeda7d9"]]},{"id":"af125ecad832abf3","type":"function","z":"3f31d3da958506a5","name":"Save Result for current Node","func":"\nreturn msg;","outputs":1,"noerr":0,"initialize":"","finalize":"","libs":[],"x":1040,"y":260,"wires":[[]]}]

[fabnavigator]

@marcus-j-davies Thank you. That does the job.
BTW, I'm still on 7.2.1-beta.5. Is that what I should be runnning?

[marcus-j-davies]

BTW, I'm still on 7.2.1-beta.5. Is that what I should be runnning?

Yup! 7.2.1 will no longer be released, I will be jumping directly to 8.0.0 due to upstream changes.
7.2.1-beta.5 is still the valid BETA, until I release a 8.0.0 BETA.

8 has breaking changes (Node Version)
https://github.com/zwave-js/node-red-contrib-zwave-js/blob/8.0.0/CHANGELOG.md