Docker，Vagrant，CentOS 7，无法启动
/var/log/messages日志如下
Aug 3 04:27:54 localhost lvm[3169]: Thin centos-docker--pool is now 100% full. Aug 3 04:27:54 localhost lvm[3169]: Insufficient free space: 1 extents needed, but only 0 available Aug 3 04:27:54 localhost lvm[3169]: Failed to extend thin centos-docker--pool.
systemctl状态日志如下：
docker.service - Docker Application Container Engine Loaded: loaded (/usr/lib/systemd/system/docker.service; enabled) Active: failed (Result: exit-code) since Mon 2015-08-03 04:22:52 UTC; 6min ago Docs: http://docs.docker.com Process: 7577 ExecStart=/usr/bin/docker -d $OPTIONS $DOCKER_STORAGE_OPTIONS $DOCKER_NETWORK_OPTIONS $ADD_REGISTRY $BLOCK_REGISTRY $INSECURE_REGISTRY (code=exited, status=1/FAILURE) Main PID: 7577 (code=exited, status=1/FAILURE) Aug 03 04:22:52 localhost.localdomain systemd[1]: Starting Docker Application Container Engine... Aug 03 04:22:52 localhost.localdomain docker[7577]: time="2015-08-03T04:22:52Z" level=info msg="+job serveapi(unix:///var/run/docker.sock)" Aug 03 04:22:52 localhost.localdomain docker[7577]: time="2015-08-03T04:22:52Z" level=info msg="Listening for HTTP on unix (/var/run/docker.sock)" Aug 03 04:22:52 localhost.localdomain docker[7577]: time="2015-08-03T04:22:52Z" level=fatal msg="Shutting down daemon due to errors: error intializing graphdriver: Unable to take ownership of... data blocks" Aug 03 04:22:52 localhost.localdomain systemd[1]: docker.service: main process exited, code=exited, status=1/FAILURE Aug 03 04:22:52 localhost.localdomain systemd[1]: Failed to start Docker Application Container Engine. Aug 03 04:22:52 localhost.localdomain systemd[1]: Unit docker.service entered failed state. Hint: Some lines were ellipsized, use -l to show in full.
这里是lsblk结果：
[root@localhost vagrant]# lsblk NAME MAJ:MIN RM SIZE RO TYPE MOUNTPOINT sda 8:0 0 9.9G 0 disk ├─sda1 8:1 0 500M 0 part /boot └─sda2 8:2 0 9.4G 0 part ├─centos-root 253:0 0 8.4G 0 lvm / ├─centos-swap 253:1 0 1016M 0 lvm [SWAP] ├─centos-docker--pool_tmeta 253:2 0 12M 0 lvm │ └─centos-docker--pool 253:4 0 16M 0 lvm └─centos-docker--pool_tdata 253:3 0 16M 0 lvm └─centos-docker--pool 253:4 0 16M 0 lvm sr0 11:0 1 1024M 0 rom sr1 11:1 1 1024M 0 rom
这个问题也许没有足够的lvm空间来使用。 只是被分配了16MB 。
解决scheme是调整centos-docker-pool