码头cgroup.procs设备上没有剩余空间

Question

在Docker和我使用Debian的专用服务器出现问题后(提供者给出了一些没有Docker需要的特性的OS映像，所以我昨天重新编译了Linux内核并激活了所需的特性，我遵循了博客中的一些说明)。

现在我很高兴和码头成功我试着创造形象..。我有个错误。

$ docker run -d -t -i phusion/baseimage /sbin/my_init -- bash -l
Unable to find image 'phusion/baseimage:latest' locally
Pulling repository phusion/baseimage
5a14c1498ff4: Download complete 
511136ea3c5a: Download complete 
53f858aaaf03: Download complete 
837339b91538: Download complete 
615c102e2290: Download complete 
b39b81afc8ca: Download complete 
8254ff58b098: Download complete 
ec5f59360a64: Download complete 
2ce4ac388730: Download complete 
2eccda511755: Download complete 
Status: Downloaded newer image for phusion/baseimage:latest
0bd93f0053140645a930a3411972d8ea9a35385ac9fafd94012c9841562beea8
FATA[0039] Error response from daemon: Cannot start container 0bd93f0053140645a930a3411972d8ea9a35385ac9fafd94012c9841562beea8: [8] System error: write /sys/fs/cgroup/docker/0bd93f0053140645a930a3411972d8ea9a35385ac9fafd94012c9841562beea8/cgroup.procs: no space left on device 

更多信息：

$ docker info
Containers: 3
Images: 12
Storage Driver: devicemapper
 Pool Name: docker-8:1-275423-pool
 Pool Blocksize: 65.54 kB
 Backing Filesystem: extfs
 Data file: /dev/loop0
 Metadata file: /dev/loop1
 Data Space Used: 814.4 MB
 Data Space Total: 107.4 GB
 Data Space Available: 12.22 GB
 Metadata Space Used: 1.413 MB
 Metadata Space Total: 2.147 GB
 Metadata Space Available: 2.146 GB
 Udev Sync Supported: false
 Data loop file: /var/lib/docker/devicemapper/devicemapper/data
 Metadata loop file: /var/lib/docker/devicemapper/devicemapper/metadata
 Library Version: 1.02.82-git (2013-10-04)
Execution Driver: native-0.2
Kernel Version: 3.19.0-xxxx-std-ipv6-64
Operating System: Debian GNU/Linux 8 (jessie)
CPUs: 4
Total Memory: 7.691 GiB
Name: ns3289160.ip-5-135-180.eu
ID: JK54:ZD2Q:F75Q:MBD6:7MPA:NGL6:75EP:MLAN:UYVU:QIPI:BTDP:YA2Z

系统：

$ df -h
Filesystem      Size  Used Avail Use% Mounted on
udev             10M     0   10M   0% /dev
tmpfs           788M  456K  788M   1% /run
/dev/sda1        20G  7.8G   11G  43% /
tmpfs           5.0M     0  5.0M   0% /run/lock
tmpfs           1.7G  4.0K  1.7G   1% /dev/shm
/dev/sda2       898G   11G  842G   2% /home

编辑:命令du -sk /var

# du -sk /var
3927624 /var

编辑:命令fdisk -l

# fdisk -l

磁盘/dev/loop0 0：

100 GiB, 107374182400 bytes, 209715200 sectors
Units: sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes
Disk /dev/loop1: 2 GiB, 2147483648 bytes, 4194304 sectors
Units: sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes
Disk /dev/sda: 931.5 GiB, 1000204886016 bytes, 1953525168 sectors
Units: sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 4096 bytes
I/O size (minimum/optimal): 4096 bytes / 4096 bytes
Disklabel type: dos
Disk identifier: 0x00060a5c

Device     Boot      Start        End    Sectors   Size Id Type
/dev/sda1  *          4096   40962047   40957952  19.5G 83 Linux
/dev/sda2         40962048 1952471039 1911508992 911.5G 83 Linux
/dev/sda3       1952471040 1953517567    1046528   511M 82 Linux swap / Solaris

Disk /dev/mapper/docker-8:1-275423-pool: 100 GiB, 107374182400 bytes, 209715200 sectors
Units: sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 65536 bytes / 65536 byte

Answer 1

我在debian中通过docker-lxc安装了对接器，我遵循了一个tuto。我尝试了另一种解决方案(成功地)，我将source.list /etc/apt/source.list从jessie升级到sid，用清除删除了docker-lxc，并安装了docker.io。

错误改变了。它是mkdir -p /sys/... can't create dir : access denied，所以我在博客中找到了一条评论，我尝试了一种解决方案--注释本教程之前添加的这一行：

 ## file /etc/fstab
 # cgroup /sys/fs/cgroup cgroup defaults 0 0

重新启动服务器。

Answer 2

您不应该移除对接器中的cgroup支持。否则，在运行码头容器时，可能会收到类似于WARNING: Your kernel does not support memory swappiness capabilities, memory swappiness discarded.的警告。

一个简单的命令就能做到这一点。

sudo echo 1 > /sys/fs/cgroup/docker/cgroup.clone_children

如果仍然无法工作，请在命令下面运行并重新启动对接服务：

sudo echo 0 > /sys/fs/cgroup/docker/cpuset.mems
sudo echo 0 > /sys/fs/cgroup/docker/cpuset.cpus

Answer 3

yum install -y libcgroup libcgroup-devel libcgroup-tools

cgclear
service cgconfig restart

mount -t cgroup none /cgroup

vi /etc/fstab
cgroup /sys/fs/cgroup cgroup defaults 0 0