Enabling memory and swap accounting for Docker

This document (7016754) is provided subject to the disclaimer at the end of this document.

Environment

SUSE Linux Enterprise Server 12
SUSE Linux Enterprise Server 15

Situation

The following error is generated when the Docker host kernel does not take memory and swap accounting into consideration:

WARNING: Your kernel does not support cgroup swap limit.
WARNING: Your kernel does not support swap limit capabilities. Limitation discarded.

Resolution

To remove this error message perform the following steps:
  • Start YaST, and select System > Boot Loader
  • Click 'Kernel Parameters'
  • Enter the following strings inside of the “Optional Kernel Command Line Parameter”:
    cgroup_enable=memory swapaccount=1
  • Press the OK button
  • Reboot your machine

Alternatively:

  • edit the /etc/default/grub file
  • Add the following string inside of the GRUB_CMDLINE_LINUX_DEFAULT variable:
    cgroup_enable=memory swapaccount=1
  • Save the change
  • Run: “sudo update-bootloader –refresh”
  • Reboot your machine

Disclaimer

This Support Knowledgebase provides a valuable tool for SUSE customers and parties interested in our products and solutions to acquire information, ideas and learn from one another. Materials are provided for informational, personal or non-commercial use within your organization and are presented "AS IS" WITHOUT WARRANTY OF ANY KIND.

  • Document ID:7016754
  • Creation Date: 11-Aug-2015
  • Modified Date:25-Feb-2021
    • SUSE Linux Enterprise Server

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