High Ram and CPU Spikes causing OOM

[Weafyr]

I run fresh installation of home assistant os on brand new odroid m1 (4GB version) and because of better HW I decided to go with better mqtt broker. But after installation of emqx addon, the ram and cpu consumption started spiking.

Detailed description (not from me) can be found here: emqx/emqx#10509

I have exactly same symptoms as creator of the issue in emqx repository.

[Weafyr]

[github-actions]

There hasn't been any activity on this issue recently, so we clean up some of the older and inactive issues.
Please make sure to update to the latest version and check if that solves the issue. Let us know if that works for you by leaving a comment 👍
This issue has now been marked as stale and will be closed if no further activity occurs. Thanks!

[KBrownConsulting]

I'm experiencing the same issue on v0.2.10

[ahochsteger]

The same with v0.2.10 of EMQX HA Add-on, Home Assistant 2023.9.2, Supervisor 2023.09.2, Operating System 10.5, Frontend 20230911.0 on a Raspberry Pi 4B with 4GB (64bit Home Assistant OS).
The RAM usage of the EMQX add-on continuously flaps between 2.2% and 43.6%.

[crls00]

I'm also having the same issue with version 0.2.10 of the addon. Frequent memory spikes reaching over 94%, alarms every 3 minutes... 33 mqtt devices.

Home Assistant 2023.9.2
Supervisor 2023.09.2
Operating System 10.5
Frontend 20230911.0 - latest

EXSi VM running on i5 NUC

[mikimite]

Hi,
I think I may found it:
https://github.com/hassio-addons/addon-emqx/blob/718b5d880f84611cd79b5cdb79adde623776990e/emqx/Dockerfile#L31

Health check is running every 5 seconds the comand
/opt/emqx/bin/emqx_ctl status || exit 1

this starts a new erlang VM machine and causes spikes.
if you log into the container with
docker exec -it {your_container_name} /bin/sh and start running ps -axf repeated times at some point you will capture a new process and some of his sons

if you execute that same command:
/bin/sh -c '/opt/emqx/bin/emqx_ctl status' || exit 1 you will start the same process and observe that the cpu usage and memory goes up and new erlang machine starts

Edit: went to check official emqx docker image and it does not have that health check

[mikimite]

Confirmed by deploying a local modified addon removing the health. I stay like this until new release

[remcom]

I had the same issue. Removing the health check solved the issue for me

[webbson]

I experience the same issue. If the fix is as simple as removing the health check that should probably be done asap. :)

[remcom]

I made a pull request for it to remove the health check

[frenck]

Fixed in #73