27 15:15:34 localhost docker-storage-setup: Volume group "centos" has insufficient free space (0 extents): 66 required.
Apr 27 15:15:34 localhost systemd: docker-storage-setup.service: main process exited, code=exited, status=5/NOTINSTALLED
Apr 27 15:15:34 localhost systemd: Failed to start Docker Storage Setup.
Apr 27 15:15:34 localhost systemd: Unit docker-storage-setup.service entered failed state.
Apr 27 15:15:34 localhost systemd: docker-storage-setup.service failed.
Apr 27 15:15:34 localhost systemd: Starting Docker Application Container Engine...
Apr 27 15:15:34 localhost journal: Forwarding stdin to journald using Priority Informational and tag docker
Apr 27 15:15:35 localhost kernel: loop: module loaded
Apr 27 15:15:38 localhost journal: time="2016-04-27T15:15:38.376521502+08:00" level=warning msg="Usage of loopback devices is strongly discouraged for production use. Please use `--storage-opt dm.thinpooldev` or use `man docker` to refer to dm.thinpooldev section."
Apr 27 15:15:38 localhost systemd: Device dev-disk-by\x2duuid-81caf5ff\x2dd883\x2d45a2\x2db20c\x2d31a41d07ad2c.device appeared twice with different sysfs paths /sys/devices/virtual/block/loop0 and /sys/devices/virtual/block/dm-4
Apr 27 15:15:38 localhost journal: time="2016-04-27T15:15:38.571170482+08:00" level=info msg="[graphdriver] using prior storage driver \"devicemapper\""
Apr 27 15:15:38 localhost journal: time="2016-04-27T15:15:38.572029145+08:00" level=warning msg="Docker could not enable SELinux on the host system"
Apr 27 15:15:46 localhost kernel: Bridge firewalling registered
Apr 27 15:15:46 localhost journal: time="2016-04-27T15:15:46.069579911+08:00" level=warning msg="Running modprobe bridge br_netfilter failed with message: modprobe: WARNING: Module br_netfilter not found.\ninsmod /lib/modules/3.10.0-229.4.2.el7.x86_64/kernel/net/llc/llc.ko \ninsmod /lib/modules/3.10.0-229.4.2.el7.x86_64/kernel/net/802/stp.ko \ninsmod /lib/modules/3.10.0-229.4.2.el7.x86_64/kernel/net/bridge/bridge.ko \n, error: exit status 1"
Apr 27 15:15:46 localhost kernel: nf_conntrack version 0.5.0 (16384 buckets, 65536 max)
Apr 27 15:15:46 localhost journal: time="2016-04-27T15:15:46.118260335+08:00" level=info msg="Firewalld running: false"
Apr 27 15:15:46 localhost journal: time="2016-04-27T15:15:46.366809062+08:00" level=fatal msg="Error starting daemon: Error initializing network controller: could not delete the default bridge network: network bridge has active endpoints"
Apr 27 15:15:46 localhost systemd: Started Docker Application Container Engine.
Apr 27 15:16:01 localhost systemd: Started Session 9 of user root.
Apr 27 15:16:01 localhost systemd: Starting Session 9 of user root.
Apr 27 15:17:01 localhost systemd: Started Session 10 of user root.
Apr 27 15:17:01 localhost systemd: Starting Session 10 of user root.
Apr 27 15:18:01 localhost systemd: Started Session 11 of user root.
Apr 27 15:18:01 localhost systemd: Starting Session 11 of user root.
Apr 27 15:19:01 localhost systemd: Started Session 12 of user root.
Apr 27 15:19:01 localhost systemd: Starting Session 12 of user root.
Apr 27 15:20:01 localhost systemd: Started Session 13 of user root.
Apr 27 15:20:01 localhost systemd: Starting Session 13 of user root.
Apr 27 15:20:18 localhost systemd: Starting Docker Storage Setup...
Apr 27 15:20:18 localhost docker-storage-setup: Rounding up size to full physical extent 264.00 MiB
Apr 27 15:20:18 localhost docker-storage-setup: Volume group "centos" has insufficient free space (0 extents): 66 required.
Apr 27 15:20:18 localhost systemd: docker-storage-setup.service: main process exited, code=exited, status=5/NOTINSTALLED
Apr 27 15:20:18 localhost systemd: Failed to start Docker Storage Setup.
Apr 27 15:20:18 localhost systemd: Unit docker-storage-setup.service entered failed state.
Apr 27 15:20:18 localhost systemd: docker-storage-setup.service failed.

cd /var/lib
sudo cp -rf docker docker.bak
sudo cp -rf docker /<my_new_location>/
sudo ln -s /<my_new_location>/docker docker
sudo /etc/init.d/docker start