/sys/fs/cgroup/memory/memory.limit_in_bytes not present in Fedora 33

Question

I have an old script that do

$(cat /sys/fs/cgroup/memory/memory.limit_in_bytes)

In fedora 33 this file is not present.

What can I do to resolve this?

Thanks.

question from:https://stackoverflow.com/questions/65646317/sys-fs-cgroup-memory-memory-limit-in-bytes-not-present-in-fedora-33

Answer 1

The issue is related to new cgroup v2. To resolve this, revert cgroup to v1:

sudo sed -i '/^GRUB_CMDLINE_LINUX/ s/"$/ systemd.unified_cgroup_hierarchy=0"/' /etc/default/grub

and reboot.

After this /sys/fs/cgroup/memory/memory.limit_in_bytes will be present.