linux重启后,

service docker start启动docker服务,失败了

[root@ip-172-31-8-236 run]# systemctl start docker
Job for docker.service failed because the control process exited with error code. See "systemctl status docker.service" and "journalctl -xe" for details.

输入"systemctl status docker.service"查看

[root@ip-172-31-8-236 run]# systemctl status docker.service
● docker.service - Docker Application Container Engine
   Loaded: loaded (/usr/lib/systemd/system/docker.service; enabled; vendor preset: disabled)
   Active: failed (Result: exit-code) since 三 2016-10-19 02:58:23 UTC; 20s ago
     Docs: http://docs.docker.com
  Process: 10835 ExecStart=/usr/bin/docker-current daemon --exec-opt native.cgroupdriver=systemd $OPTIONS $DOCKER_STORAGE_OPTIONS $DOCKER_NETWORK_OPTIONS $ADD_REGISTRY $BLOCK_REGISTRY $INSECURE_REGISTRY (code=exited, status=1/FAILURE)
 Main PID: 10835 (code=exited, status=1/FAILURE)


10月 19 02:58:23 ip-172-31-8-236.cn-north-1.compute.internal systemd[1]: Starting Docker Application Container Engine...
10月 19 02:58:23 ip-172-31-8-236.cn-north-1.compute.internal docker-current[10835]: time="2016-10-19T02:58:23.880006578Z" level=fatal msg="can't create unix socket /var/run/docker.sock: is a directory"
10月 19 02:58:23 ip-172-31-8-236.cn-north-1.compute.internal systemd[1]: docker.service: main process exited, code=exited, status=1/FAILURE
10月 19 02:58:23 ip-172-31-8-236.cn-north-1.compute.internal systemd[1]: Failed to start Docker Application Container Engine.
10月 19 02:58:23 ip-172-31-8-236.cn-north-1.compute.internal systemd[1]: Unit docker.service entered failed state.
10月 19 02:58:23 ip-172-31-8-236.cn-north-1.compute.internal systemd[1]: docker.service failed.

可以看出原因:can't create unix socket /var/run/docker.sock: is a directory

/var/run/docker.sock是一个目录,导致docker启动失败

解决过程:

删除docker.sock目录,

service docker start 启动docker服务

启动过程好像出现了长时间的阻塞,后不得已强制结束,Ctrl+c

查看/var/run/目录下已新建了docker.sock文件

查看docker服务是否启动:docker image

还是出现阻塞

service docker stop 关闭docker服务,好似正常关闭

然后service docker start启动docker服务,正常启动!