[CRIU] how to lively migration a vm container?

[Bing X]

As it's clear in the hierarchy, I have 3 docker containers running under
docker.io; for 2 of them, the ssh connected, one is bash (local container)..

All of these images stored under /var/lib/docker/graph/

but why I couldn't successfully dump any of them? Please help me take a
look.

thanks!


On Mon, May 12, 2014 at 7:37 PM, Bing X <xiebingbing at gmail.com> wrote:

> I am running two docker containers with ssh service under /root. in one of
> containers, I run a IOR benchmark, which is live, and which is the one I
> want to dump.
>
> what are the mountpoints visible by it? --- what's this mean?
>
> here's the pid hierarchical structure:
> 2569 ?        Sl     0:12  \_ /usr/bin/docker.io -d
>  5984 ?        Ss     0:00      \_ /bin/sh -c /usr/sbin/sshd -D
>  6016 ?        S      0:00      |   \_ /usr/sbin/sshd -D
> 12551 ?        Ss     0:02      |       \_ sshd: root at notty
> 12563 ?        Ss     0:00      |           \_ bash -c cd /root/io_run;
> bash ./run.sh
> 12564 ?        S      0:00      |               \_ bash ./run.sh
> 14105 ?        S      0:00      |                   \_ mpirun ./IOR -w -z
> -e -f ./parameter.script
> 14106 ?        S      0:00      |                       \_
> /usr/bin/hydra_pmi_proxy --control-port 280bce53d979:54710 --rmk user
> --launcher ssh --demux poll --pgid 0 --retries 10 --proxy-id 0
> 14107 ?        S      0:00      |                           \_ ./IOR -w -z
> -e -f ./parameter.script
>  9017 ?        Ss     0:00      \_ /bin/sh -c /usr/sbin/sshd -D
>  9034 ?        S      0:00          \_ /usr/sbin/sshd -D
>
>
>
>
> On Mon, May 12, 2014 at 7:29 PM, Pavel Emelyanov <xemul at parallels.com>wrote:
>
>> On 05/13/2014 03:13 AM, Bing X wrote:
>> > What does it mean: I run criu dump with a pid I assume it is a
>> container process, but get an error as:
>> >
>> > Error (mount.c:356): 119:./etc/hosts doesn't have a proper root mount
>> > Error (cr-dump.c:1870): Dumping FAILED.
>> >
>> > what I should change?
>>
>> The /etc/hosts is bind-mounted file and source of it sits out of
>> the scope of what you dump.
>>
>> Please, describe your setup -- what app do you dump, in what namespaces
>> does it live and what are the mountpoints visible by it?
>>
>> Thanks,
>> Pavel
>>
>
>
>
> --
> Thanks
> Bing
>



-- 
Thanks
Bing
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