Hi, is there a way to increase the swap space? I keep running into swap usages of 100% and can’t figure out what to do. The system runs fine, but occasionally, I get system lock-ups and the SD card light on the Pi is flashing like mad. Seems like an out of space situation. Thanks!

It’s a 32Gb Sandisk SD card. And disk usage is below 20%.

Ok, that’s plenty big enough. What’s your RAM use like?

My RAM use is around 75%. I’m running the UniFi Controller so that consumes a large chunk of the RAM.

Yeah that’s your problem. You might want to move that to another pi or better yet get a Chinese mini pc to run hassio and unifi. In answer to your question, you might be able to increase the swap size by connecting a keyboard and display to the pi and issuing the commands there. Hassio is rather lo…

I just realized that swap is increasing by itself day by day and Hassio restarts makes it worse. I did the host reboot ( Hass.io >Host system>Reboot) and after it swap went from 89% to 29%. I think that there is something to do about it in the next Hassio update. Now as a temporary solution I have m…

[image] jarekmor: nd Hassio restarts makes it worse. I did the host reboot ( Hass.io >Host system>Reboot) and after it swap went from 89% to 29%. I think that there is something to do about it in the next Hassio update. I have the same issue on a Intel NUC also running hassio with unifi contro…

What components are you using? Are you using the embedded MQTT broker? I racall there being a problem with memory leak and causing this problem. I do not use MQTT myself, but the solution was to NOT use the embedded broker.

I will try to follow advices from this article: https://www.tecmint.com/clear-ram-memory-cache-buffer-and-swap-space-on-linux/ The command to clear swap space is following: “swapoff -a && swapon -a”. If I understand it correctly I will need to write a script to run with an automation when a swap u…

Unfortunately “swap off -a” command is not permitted. So, now as I can see only reboot of a host is solution to clear a swap. My automation is following (in automations.yaml): id: ‘xxxxxxxxxxxxxx’ alias: SWAP reboot description: ‘’ trigger: above: ‘80’ entity_id: sensor.coreos_swap_used_pe…

Out of swap space

Installation Home Assistant OS

JZhass January 24, 2021, 9:45am 20

@ffm777 if you’re running HA OS then this may help you: