Kubernetes OOM pod killed because kernel memory grows to much

docker linux-kernel kubernetes out-of-memory

Thanks for all this info, it was very useful!

On my app, I solved this by creating a new side container that runs a cron job, every 5 minutes with the following command:

echo 3 > /proc/sys/vm/drop_caches

(note that you need the side container to run in privileged mode)

It works nicely and has the advantage of being predictable: every 5 minutes, your memory cache will be cleared.

CodeHunter