I run command docker system prune
yesterday, it took some time and then my SSH session was disconnected from different reason.
Unfortunately I am getting now:
Error response from daemon: a prune operation is already running
.
Obviously there is a lock and prune command is not running anymore.
Does anybody know how remove the lock without stopping and removing all containers?
EDIT: Created an issue in repo: https://github.com/moby/moby/issues/36447
Restarting docker worked for me.