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The memory cgroup is not enabled.

See original GitHub issue

I appended cgroup_enable=memory cgroup_memory=1 to cmdline.txt file in each node and reboot but it not working.

microk8s inspect

Inspecting Certificates
Inspecting services
  Service snap.microk8s.daemon-cluster-agent is running
  Service snap.microk8s.daemon-containerd is running
  Service snap.microk8s.daemon-apiserver is running
  Service snap.microk8s.daemon-apiserver-kicker is running
  Service snap.microk8s.daemon-proxy is running
  Service snap.microk8s.daemon-kubelet is running
  Service snap.microk8s.daemon-scheduler is running
  Service snap.microk8s.daemon-controller-manager is running
  Copy service arguments to the final report tarball
Inspecting AppArmor configuration
Gathering system information
  Copy processes list to the final report tarball
  Copy snap list to the final report tarball
  Copy VM name (or none) to the final report tarball
  Copy disk usage information to the final report tarball
  Copy memory usage information to the final report tarball
  Copy server uptime to the final report tarball
  Copy current linux distribution to the final report tarball
  Copy openSSL information to the final report tarball
  Copy network configuration to the final report tarball
Inspecting kubernetes cluster
  Inspect kubernetes cluster

WARNING:  The memory cgroup is not enabled. 
The cluster may not be functioning properly. Please ensure cgroups are enabled 
See for example: https://microk8s.io/docs/install-alternatives#heading--arm 
Building the report tarball
  Report tarball is at /var/snap/microk8s/1669/inspection-report-20201027_221452.tar.gz

Issue Analytics

State:
Created 3 years ago
Reactions:3
Comments:35 (3 by maintainers)

Top GitHub Comments

12reactions

Cerebuscommented, Oct 15, 2022

GRUB_CMDLINE_LINUX="cgroup_enable=memory cgroup_memory=1 systemd.unified_cgroup_hierarchy=0"

I needed all three of these.

9reactions

basebanditcommented, Oct 3, 2022

Here is a fix for this in ubuntu 22.04. Open the file /etc/default/grub in an editor. Find where the string GRUB_CMDLINE_LINUX is set. Add cgroup_enable=memory cgroup_memory=1 to that string. Save the file and exit the editor. Then run sudo update-grub. Here is how my grub file looks like:

GRUB_DEFAULT=0
GRUB_TIMEOUT_STYLE=hidden
GRUB_TIMEOUT=0
GRUB_DISTRIBUTOR=`lsb_release -i -s 2> /dev/null || echo Debian`
GRUB_CMDLINE_LINUX_DEFAULT="quiet splash"
GRUB_CMDLINE_LINUX="cgroup_enable=memory cgroup_memory=1 swapaccount=1 systemd.unified_cgroup_hierarchy=0"

Then you may restart your computer. Then run microk8s.inspect, everything should be ok. Below is my microk8s version MicroK8s v1.25.2 revision 4055