Docker 命令不再响应

问题描述 投票:0回答:7

大多数 docker 命令永远不会结束。我必须用 CTRL+C 手动中断它们。即使像

docker ps
docker info
这样的简单命令也不会响应。

但是,

docker help
docker version
仍然有效。

我认为特定容器存在类似死锁的情况,因此与容器相关的命令将无法完成。

遇到这样的情况如何处理?


我的docker版本是1.12.3。我不使用 Swarm 模式。

docker logs
命令也不起作用。使用
dmesg
我可以看到很多I/O错误,但我不知道它是否与我的问题有关:

[12898.121287] loop: Write error at byte offset 8882749440, length 4096.
[12898.122837] loop: Write error at byte offset 8883666944, length 4096.
[12898.124685] loop: Write error at byte offset 8882814976, length 4096.
[12898.126459] loop: Write error at byte offset 8883404800, length 4096.
[12898.128201] loop: Write error at byte offset 8883470336, length 4096.
[12898.129921] loop: Write error at byte offset 8883535872, length 4096.
[12898.131774] loop: Write error at byte offset 8883601408, length 4096.
[12898.133594] loop: Write error at byte offset 8883732480, length 4096.
[12917.269786] loop: Write error at byte offset 8883798016, length 4096.
[12917.270331] quiet_error: 632 callbacks suppressed
[12917.270334] Buffer I/O error on device dm-6, logical block 1313320
[12917.270540] lost page write due to I/O error on dm-6
[12917.270543] Buffer I/O error on device dm-6, logical block 1313321
[12917.270740] lost page write due to I/O error on dm-6
[12917.270742] Buffer I/O error on device dm-6, logical block 1313322
[12917.270957] lost page write due to I/O error on dm-6
[12917.270959] Buffer I/O error on device dm-6, logical block 1313323
[12917.271177] lost page write due to I/O error on dm-6
[12917.271179] Buffer I/O error on device dm-6, logical block 1313324
[12917.271377] lost page write due to I/O error on dm-6
[12917.271379] Buffer I/O error on device dm-6, logical block 1313325
[12917.271573] lost page write due to I/O error on dm-6
[12917.301759] loop: Write error at byte offset 8883863552, length 4096.
[12917.312038] loop: Write error at byte offset 8883929088, length 4096.
[12917.312396] Buffer I/O error on device dm-6, logical block 1313328
[12917.312635] lost page write due to I/O error on dm-6
[12917.312638] Buffer I/O error on device dm-6, logical block 1313329
[12917.312867] lost page write due to I/O error on dm-6
[12917.312869] Buffer I/O error on device dm-6, logical block 1313330
[12917.313121] lost page write due to I/O error on dm-6
[12917.313123] Buffer I/O error on device dm-6, logical block 1313331
[12917.313346] lost page write due to I/O error on dm-6
[13090.853726] INFO: task kworker/u8:0:17212 blocked for more than 120 seconds.
[13090.854055] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.

使用命令

sudo systemctl status -l docker
,打印以下消息,但我无法判断它们是否相关:

dockerd[1344]: time="2016-11-24T17:49:01.184874648+01:00" level=warning msg="libcontainerd: container c9f35af1836bf856001ca6156663f713c1217a697e8d2451927c67797fb5a770 restart canceled"
dockerd[1344]: time="2016-11-24T17:49:02.627116016+01:00" level=info msg="No non-localhost DNS nameservers are left in resolv.conf. Using default external servers : [nameserver 8.8.8.8 nameserver 8.8.4.4]"
dockerd[1344]: time="2016-11-24T17:49:02.627152661+01:00" level=info msg="IPv6 enabled; Adding default IPv6 external servers : [nameserver 2001:4860:4860::8888 nameserver 2001:4860:4860::8844]"
dockerd[1344]: time="2016-11-24T18:19:51.472701647+01:00" level=warning msg="libcontainerd: container c9f35af1836bf856001ca6156663f713c1217a697e8d2451927c67797fb5a770 restart canceled"
dockerd[1344]: time="2016-11-24T18:19:56.712126199+01:00" level=info msg="No non-localhost DNS nameservers are left in resolv.conf. Using default external servers : [nameserver 8.8.8.8 nameserver 8.8.4.4]"
dockerd[1344]: time="2016-11-24T18:19:56.712159759+01:00" level=info msg="IPv6 enabled; Adding default IPv6 external servers : [nameserver 2001:4860:4860::8888 nameserver 2001:4860:4860::8844]"
dockerd[1344]: time="2016-11-24T18:34:24.301786606+01:00" level=info msg="No non-localhost DNS nameservers are left in resolv.conf. Using default external servers : [nameserver 8.8.8.8 nameserver 8.8.4.4]"
dockerd[1344]: time="2016-11-24T18:34:24.302208751+01:00" level=info msg="IPv6 enabled; Adding default IPv6 external servers : [nameserver 2001:4860:4860::8888 nameserver 2001:4860:4860::8844]"
docker
7个回答
14
投票

我删除容器后发生了 Docker 命令挂起错误。

守护进程 dockerd 处于异常状态:停止后无法启动 (

sudo service docker start
) (
service docker stop
)。

# sudo service docker start
Redirecting to /bin/systemctl start docker.service
Job for docker.service failed because the control process exited with error code. See "systemctl status docker.service" and "journalctl -xe" for details.

# journalctl -xe
kernel: device-mapper: ioctl: unable to remove open device docker-253:0-19468577-d6f74dd67f106d6bfa483df4ee534dd9545dc8ca
...
systemd[1]: docker.service: main process exited, code=exited, status=1/FAILURE
systemd[1]: Failed to start Docker Application Container Engine.
systemd[1]: Unit docker.service entered failed state.
systemd[1]: docker.service failed.
polkitd[896]: Unregistered Authentication Agent for unix-process:22551:34177094 (system bus name :1.290, object path /org
ESCESC
kernel: dev_remove: 41 callbacks suppressed
kernel: device-mapper: ioctl: unable to remove open device docker-253:0-19468577-fc63401af903e22d05a4518e02504527f0d7883f9d997d7d97fdfe72ba789863
...
dockerd[22566]: time="2016-11-28T10:18:09.840268573+01:00" level=fatal msg="Error starting daemon: timeout"
systemd[1]: docker.service: main process exited, code=exited, status=1/FAILURE
systemd[1]: Failed to start Docker Application Container Engine.

此外,可以使用

ps -eax | grep docker
(“STAT”列中存在“Z”)观察许多僵尸 Docker 进程,例如 docker-proxies。

重新启动服务器并重新启动 Docker 后,僵尸进程消失并且 Docker 命令再次工作。


8
投票

我也遇到了类似的问题。重新启动服务器对我来说不起作用。我遇到这个问题,因为我刚刚安装了一个有某种错误的新容器。此后,大多数 Docker 命令都没有响应。我通过执行以下命令修复了它:

docker system prune -a

这将删除所有未使用的容器。就我而言,还有我刚刚添加的容器。更多信息:

https://docs.docker.com/engine/reference/commandline/system_prune/


0
投票

我遇到了同样的问题(命令没有响应),我通过增加分配给 Docker 的资源来修复它。

Docker 桌面 -> 首选项 -> 高级

就我而言,我增加了:

  • 内存从2GB到8GB
  • 从 1GB 切换到 2GB

根据您的机器尝试不同的值。


0
投票

从你所呈现的症状来看,我似乎也遇到了困难。 我做了以下,希望有帮助!

检查后服务未成功响应,使用:

system status docker.service

我使用以下命令来让它工作:

sudo dockerd --debug


-1
投票

我卸载了 Docker 并重新安装了它,一切似乎又恢复正常了


-5
投票

重新启动我的电脑对我有用

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