Docker运行，设备上没有剩余空间

Question

[root@host ~]# docker run 9e7de9390856

Timestamp: 2015-06-15 22:20:58.8367035 +1000 AEST
Code: System error

Message: [/usr/bin/tar -xf /var/lib/docker/tmp/cde0f3a199597ac2e18e7efc7744c84a6c134adef31fb88b6982a8732f45efa5090033894/_tmp.tar -C /var/lib/docker/devicemapper/mnt/cde0f3a199597ac2e18e7efc7744c84a6c134adef31fb88b6982a8732f45efa5/rootfs/tmp .] failed: /usr/bin/tar: ./was/fixPack/7.0.0-WS-WASSDK-LinuxX64-FP0000027.pak: Wrote only 4608 of 10240 bytes
/usr/bin/tar: ./was/fixPack/wasFixPackInstallResponseFile: Cannot write: No space left on device
.
.
Cannot write: No spaFATA[0141] Error response from daemon: : exit status 2

df -h:

Filesystem      Size  Used Avail Use% Mounted on
/dev/xvda2      6.0G  3.2G  2.9G  52% /
devtmpfs        1.9G     0  1.9G   0% /dev
tmpfs           1.8G     0  1.8G   0% /dev/shm
tmpfs           1.8G   17M  1.8G   1% /run
tmpfs           1.8G     0  1.8G   0% /sys/fs/cgroup
/dev/xvdb1       99G   28G   67G  30% /var/lib/docker

docker info:

Containers: 2
Images: 34
Storage Driver: devicemapper
 Pool Name: docker-202:17-2621441-pool
 Pool Blocksize: 65.54 kB
 Backing Filesystem: extfs
 Data file: /dev/loop0
 Metadata file: /dev/loop1
 Data Space Used: 15.89 GB
 Data Space Total: 107.4 GB
 Data Space Available: 76.3 GB
 Metadata Space Used: 10.27 MB
 Metadata Space Total: 2.147 GB
 Metadata Space Available: 2.137 GB
 Udev Sync Supported: true
 Data loop file: /var/lib/docker/devicemapper/devicemapper/data
 Metadata loop file: /var/lib/docker/devicemapper/devicemapper/metadata
 Library Version: 1.02.93-RHEL7 (2015-01-28)
Execution Driver: native-0.2
Kernel Version: 3.10.0-229.el7.x86_64
Operating System: Red Hat Enterprise Linux Server 7.1 (Maipo)
CPUs: 2
Total Memory: 3.452 GiB
Name: ip-10-100-128-182.localdomain
ID: 4ZZZ:BSQD:GBKL:4Y3N:J6BL:47QE:3HMQ:GLMY:FPUK:CEPM:3EBP:ZU7G
Debug mode (server): true
Debug mode (client): false
Fds: 13
Goroutines: 18
System Time: Mon Jun 15 22:48:24 AEST 2015
EventsListeners: 0
Init SHA1: 836be3a369bfc6bd4cbd3ade1eedbafcc1ea05d0
Init Path: /usr/libexec/docker/dockerinit
Docker Root Dir: /var/lib/docker

uname -a: Linux ip-10-100-128-182.localdomain 3.10.0-229.el7.x86_64 #1 SMP Thu Jan 29 18:37:38 EST 2015 x86_64 x86_64 x86_64 GNU/Linux

Anyone can help me? Not sure this information is enough. But tried couple of solutions, nothing worked.

docker version: Client version: 1.6.0 Client API version: 1.18 Go version (client): go1.4.2 Git commit (client): 8aae715/1.6.0 OS/Arch (client): linux/amd64 Server version: 1.6.0 Server API version: 1.18 Go version (server): go1.4.2 Git commit (server): 8aae715/1.6.0 OS/Arch (server): linux/amd64

[root@host ~]# service docker status -l
Redirecting to /bin/systemctl status  -l docker.service
docker.service - Docker Application Container Engine
   Loaded: loaded (/usr/lib/systemd/system/docker.service; disabled)
   Active: active (running) since Tue 2015-06-16 00:31:46 AEST; 2min 2s ago
     Docs: http://docs.docker.com
 Main PID: 3306 (docker)
   CGroup: /system.slice/docker.service
           └─3306 /usr/bin/docker -d --storage-opt dm.basesize=30G --storage-opt dm.loopmetadatasize=4G

Answer 1

It sounds like you're trying to start a container from a 14GB image.

A Docker container, when using the devicemapper storage driver, only has 10GB of space available by default. You appear to be using the devicemapper driver, so this is probably the source of your problem.

This article discusses in detail the process you need to use to increase the amount of space available for container filesystems.

Filesystem-based drivers (like the overlay driver) to not have this same limitation (but they may of course suffer from other limitations).