Why is docker checkpoint not working when experimental is set to true?

Published

I have:

cat /etc/docker/daemon.json
{
  "experimental": true
}

sudo apt-get install -y criu        
Reading package lists... Done
Building dependency tree       
Reading state information... Done
criu is already the newest version (3.14-1).

sudo kill -SIGHUP $(pidof dockerd)
docker checkpoint create cc61c202c903 J1
docker checkpoint create is only supported on a Docker daemon with experimental features enabled

Why is docker checkpoint not working?

FWIW, I’m following the sketchy docs here: https://docs.docker.com/engine/reference/commandline/checkpoint/

Also:

cat /etc/os-release  NAME="Ubuntu" VERSION="20.10 (Groovy Gorilla)"

and

docker version
Client: Docker Engine - Community
 Version:           19.03.11

Source: Docker Questions

Published
Categorised as docker Tagged

Answers

To save anyone who comes here a few clicks:
https://github.com/docker/cli/issues/947#issuecomment-373306872


Sandro Jijavadze

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