Some question about crgoup drivers

General Discussions
1

Hi,

I noticed that there are different options for cgroup drivers which can be used.
Currently I am using kubernetes 14 and docker 18.09-CE on centos 7 on my nodes.

Here are my questions:

  • What are the pros / cons of cgroupfs and systemd?
  • Can different nodes use different cgroup drivers without any impact?

Thanks Andreas

2

I’m not quite versed in this, but I can add that if you want to use cgroupv2 from the kernel, you need to use the systemd driver.

I don’t think different nodes with different drivers should impact. But you need to pass the kubelet the flag, so you need to be careful to keep the kubelet flag in sync with the docker driver used.