store directory has ~100 random character json files

[chriswood1001]

I notice in my /store directory about 100 random character json files. My guess is that they're browser session cookies but I'm not sure. Can they be safely purged?

Example files names:

• 0hFYKyMuAcer6JdgR4e36AuwcphxY0Vh.json
• 0-mTi4kkyabnt_Er9NIB6PDWJZa4TTkz.json
• 2f6-KlKXYisu-BKgpC1aPXC3vNzrJsmw.json

Example file content:

{
    "cookie": {
        "originalMaxAge": 86400000,
        "expires": "2021-03-12T17:30:29.786Z",
        "secure": false,
        "httpOnly": true,
        "path": "/"
    },
    "__lastAccess": 1615483829787
}

[robertsLando]

them are session files, yes. YOu can safely delete them, at most some of your existing sessions will require you to re-login

[chriswood1001]

Thank you. Over night I noticed 500 new cookie files appeared and I found the culprit.

I'm using NodeRed to perform a healthcheck every minute against: http://192.168.7.xxx:8091/health/zwave, sending an alert if I don't receive status:200. Every healthcheck creates a new session cookie because I'm not storing and resending it.

For anyone coming here for a solution, I've copied my Node-Red ZwaveJs2MQTT Health Check flow. Remember to set the proper IP in the Build HTTP request, function node.

[{"id":"538307ea.8b8d18","type":"group","z":"417f82fd.a35a1c","name":"Zwave2Mqtt online (health check)","style":{"stroke":"#bfbfbf","fill":"#ffffbf","label":true,"color":"#000000"},"nodes":["7e2ab249.0a244c","a94b1d80.fc1","7f23f951.055608","80959eae.798d","f6834612.7438d8","5a952659.acf678","1dbc1881.708417"],"x":34,"y":639,"w":912,"h":142},{"id":"7e2ab249.0a244c","type":"http request","z":"417f82fd.a35a1c","g":"538307ea.8b8d18","name":"ZWaveJS server health check","method":"GET","ret":"txt","paytoqs":"ignore","url":"","tls":"","persist":false,"proxy":"","authType":"","x":496,"y":680,"wires":[["5a952659.acf678","7f23f951.055608"]]},{"id":"a94b1d80.fc1","type":"inject","z":"417f82fd.a35a1c","g":"538307ea.8b8d18","name":"Check every 1 minutes","props":[],"repeat":"60","crontab":"","once":true,"onceDelay":"3","topic":"","payloadType":"str","x":190,"y":680,"wires":[["f6834612.7438d8"]]},{"id":"7f23f951.055608","type":"debug","z":"417f82fd.a35a1c","g":"538307ea.8b8d18","name":"Debug","active":true,"tosidebar":true,"console":false,"tostatus":false,"complete":"true","targetType":"full","statusVal":"","statusType":"auto","x":675,"y":740,"wires":[],"icon":"font-awesome/fa-bug","l":false},{"id":"80959eae.798d","type":"ha-entity","z":"417f82fd.a35a1c","g":"538307ea.8b8d18","name":"ZWaveJs2Mqtt Online","server":"d0f93f3b.5b42d","version":1,"debugenabled":false,"outputs":1,"entityType":"binary_sensor","config":[{"property":"name","value":"Utilitycloset docker zwavejs2mqtt online"},{"property":"device_class","value":"connectivity"},{"property":"icon","value":""},{"property":"unit_of_measurement","value":""}],"state":"payload","stateType":"msg","attributes":[],"resend":true,"outputLocation":"","outputLocationType":"none","inputOverride":"allow","x":820,"y":680,"wires":[[]]},{"id":"f6834612.7438d8","type":"function","z":"417f82fd.a35a1c","g":"538307ea.8b8d18","name":"Build HTTP request","func":"const zwaveJsIp = 'http://192.168.7.xxx:8091';\n\nmsg.url               = zwaveJsIp + '/health/zwave';\nmsg.requestTimeout    = 5 * 1000; // 5 second timeout\nmsg.headers           = {};\nmsg.headers['Accept'] = 'text/plain';\n\nif(flow.get(\"cookie\"))\n    msg.headers['Cookie'] = flow.get(\"cookie\");\n\nreturn msg;","outputs":1,"noerr":0,"initialize":"","finalize":"","x":335,"y":680,"wires":[["7e2ab249.0a244c"]],"l":false},{"id":"5a952659.acf678","type":"function","z":"417f82fd.a35a1c","g":"538307ea.8b8d18","name":"Evaluate response or error","func":"if(!flow.get(\"cookie\"))\n    flow.set(\"cookie\", msg.headers[\"set-cookie\"][0]);\n\nmsg.payload = (msg.statusCode == 200);\nreturn msg;","outputs":1,"noerr":0,"initialize":"","finalize":"","x":675,"y":680,"wires":[["80959eae.798d"]],"icon":"font-awesome/fa-power-off","l":false},{"id":"1dbc1881.708417","type":"catch","z":"417f82fd.a35a1c","g":"538307ea.8b8d18","name":"Catch health check error","scope":["7e2ab249.0a244c"],"uncaught":false,"x":510,"y":740,"wires":[["7f23f951.055608"]]},{"id":"d0f93f3b.5b42d","type":"server","name":"Home Assistant (RPI4)","legacy":false,"addon":false,"rejectUnauthorizedCerts":true,"ha_boolean":"y|yes|true|on|home|open","connectionDelay":false,"cacheJson":true}]

[Neonox31]

I got the same problem with a K3S liveness probe, maybe there is a way to put these files in a dedicated directory so as not to pollute the /store directory too much ?

[robertsLando]

Them should be automatically purged when session expires, but I should double check this

[robertsLando]

check #1067

[Neonox31]

Thanks a lot @robertsLando, I looked at the code and maybe by disabling the saveUninitialized flag healthcheck request sessions won't be saved anymore ?

[robertsLando]

Yep, also resave could be disabled, forgot to change them after switching to a persistent store. Check #1068

[Neonox31]

Thanks a lot, it sounds good 👍