Docker 运行镜像警告Your kernel does not support swap limit capabilities解决方案

最新推荐文章于 2024-08-12 13:26:17 发布

Held0n

最新推荐文章于 2024-08-12 13:26:17 发布

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本文介绍如何通过修改GRUB启动参数来解决运行Docker时遇到的关于内核不支持cgroup交换限制的警告。通过调整GRUB_CMDLINE_LINUX值，启用内存和交换会计功能，避免Docker运行时出现性能限制警告。

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这是因为主机上默认不启用cgroup来控制swap分区，可以参考docker官方的相应文档，修改grub启动参数。

Adjust memory and swap accounting
When users run Docker, they may see these messages when working with an image:

WARNING: Your kernel does not support cgroup swap limit. WARNING: Your
kernel does not support swap limit capabilities. Limitation discarded.
To prevent these messages, enable memory and swap accounting on your system. To enable these on system using GNU GRUB (GNU GRand Unified Bootloader), do the following.

Log into Ubuntu as a user with sudo privileges.

Edit the /etc/default/grub file.

Set the GRUB_CMDLINE_LINUX value as follows:

GRUB_CMDLINE_LINUX="cgroup_enable=memory swapaccount=1"
Save and close the file.

Update GRUB.

$ sudo update-grub
Reboot your system.