由于 "volume store metadata database: timeout"导致 Docker 无法启动

Question

我关注了installation instructions of Docker CE for CentOS .最初这行得通。在某些时候系统重新启动，现在启动 Docker 失败。感谢专家对此事的看法...

systemctl start docker 产生:

Job for docker.service failed because the control process exited with error code. See "systemctl status docker.service" and "journalctl -xe" for details.

systemctl status docker.service 产生:

Apr 21 11:25:23 sec-services-build-1 systemd[1]: Starting Docker Application Container Engine...
Apr 21 11:25:23 sec-services-build-1 dockerd[9693]: time="2017-04-21T11:25:23.370390797+03:00" level=info msg="libcontainerd: previous instance of containerd still alive (8908)"
Apr 21 11:25:23 sec-services-build-1 dockerd[9693]: time="2017-04-21T11:25:23.382492171+03:00" level=warning msg="overlay: the backing xfs filesystem is formatted without d_type support, which leads to incorrect behavior. Reformat the filesystem with ftype=1 to enable d_type support. Running without d_type support will no longer be supported in Docker 17.12."
Apr 21 11:25:23 sec-services-build-1 dockerd[9693]: time="2017-04-21T11:25:23.382547668+03:00" level=info msg="[graphdriver] using prior storage driver: overlay"
Apr 21 11:25:24 sec-services-build-1 dockerd[9693]: Error starting daemon: error while opening volume store metadata database: timeout
Apr 21 11:25:24 sec-services-build-1 systemd[1]: docker.service: main process exited, code=exited, status=1/FAILURE
Apr 21 11:25:24 sec-services-build-1 systemd[1]: Failed to start Docker Application Container Engine.
Apr 21 11:25:24 sec-services-build-1 systemd[1]: Unit docker.service entered failed state.
Apr 21 11:25:24 sec-services-build-1 systemd[1]: docker.service failed.

Answer 1

从这里:https://github.com/moby/moby/issues/22507

我跑了:

ps axf | grep docker | grep -v grep | awk '{print "kill -9 " $1}' | sudo sh 

然后我可以使用以下命令重新启动 docker:

sudo systemctl start docker