# Out of memory crash on Windows 10 PC

**URL:** <https://discourse.nodered.org/t/out-of-memory-crash-on-windows-10-pc/54141>\
**Category:** General\
**Created:** [22 November 2021 22:40 UTC](https://discourse.nodered.org/t/out-of-memory-crash-on-windows-10-pc/54141 "2021-11-22T22:40:52Z")\
**Posts on this page:** 1\
**Showing post:** 8

<div class="post-metadata">

**Author:** ![ls819011](https://sea2.discourse-cdn.com/flex026/user_avatar/discourse.nodered.org/ls819011/32/51342_2.png) [@ls819011](https://discourse.nodered.org/u/ls819011)\
**Post date:** [23 November 2021 12:40 UTC](https://discourse.nodered.org/t/out-of-memory-crash-on-windows-10-pc/54141/8 "2021-11-23T12:40:31Z")

</div>

If you use node-red-mode-mysql 0.3.0, it can cause memory leak (see [here](https://discourse.nodered.org/t/node-red-node-mysql-0-3-0-is-causing-a-memory-leak/53999)).  
You can use [node-red-contrib-gc](https://flows.nodered.org/node/node-red-contrib-gc) to check if memory is leaking in flow like that:

 ![изображение](https://us1.discourse-cdn.com/flex026/uploads/nodered/original/3X/0/d/0d9c4369ab1a415f2ab3f260100a1b59ac278383.png)

```auto
[{"id":"693c807aba34e169","type":"inject","z":"170b10c08a03ffc3","name":"1 min","props":[{"p":"payload"},{"p":"topic","vt":"str"}],"repeat":"60","crontab":"","once":false,"onceDelay":0.1,"topic":"","payloadType":"date","x":330,"y":960,"wires":[["7f26bf7872b32147"]]},{"id":"7f26bf7872b32147","type":"function","z":"170b10c08a03ffc3","name":"Show Memory Heap Usage","func":"var heap_usage = flow.get(\"heap_usage\", msg.payload.after);\nmsg = undefined;\nreturn [{topic : \"HeapTotal\", payload : heap_usage.totalHeapSize/1024/1024}, {topic : \"HeapUsed\", payload : heap_usage.usedHeapSize/1024/1024}];","outputs":2,"noerr":0,"initialize":"","finalize":"","libs":[],"x":620,"y":960,"wires":[["f744096.dfe3af8"],["f744096.dfe3af8"]]},{"id":"f744096.dfe3af8","type":"ui_chart","z":"170b10c08a03ffc3","name":"Memory Heap Usage","group":"1ff820d1b48f0454","order":0,"width":0,"height":0,"label":"","chartType":"line","legend":"true","xformat":"HH:mm","interpolate":"linear","nodata":"Garbage collections","dot":false,"ymin":"","ymax":"","removeOlder":"24","removeOlderPoints":"","removeOlderUnit":"3600","cutout":0,"useOneColor":false,"useUTC":false,"colors":["#1f77b4","#aec7e8","#ff7f0e","#2ca02c","#98df8a","#d62728","#ff9896","#9467bd","#c5b0d5"],"outputs":1,"useDifferentColor":false,"className":"","x":900,"y":960,"wires":[[]]},{"id":"c79dbd16.6f388","type":"function","z":"170b10c08a03ffc3","name":"SaveMemoryHeapUsage","func":"flow.set(\"heap_usage\", msg.payload.after);\nreturn null;","outputs":1,"noerr":0,"initialize":"","finalize":"","libs":[],"x":910,"y":1020,"wires":[[]]},{"id":"d4273bb3.2956f8","type":"gc","z":"170b10c08a03ffc3","minor":true,"major":true,"incremental":true,"weak":true,"all":true,"name":"","x":310,"y":1020,"wires":[["c79dbd16.6f388"]]},{"id":"1ff820d1b48f0454","type":"ui_group","name":"Memory Heap Usage, MBytes","tab":"89b9dc8710eeab40","order":6,"disp":true,"width":"10","collapse":false,"className":""},{"id":"89b9dc8710eeab40","type":"ui_tab","name":"System","icon":"dashboard","order":4,"disabled":false,"hidden":false}]

```

Also I guess you may have some possible memory leak warning shortly after Node-Red restart in some of Windows logs and/or Node-Red log.

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_[View the full topic](https://discourse.nodered.org/t/out-of-memory-crash-on-windows-10-pc/54141)._