[CRIU] Restarting Process in an LXC Container

[Andrew Vagin]

On Thu, Jan 15, 2015 at 02:02:56PM +0100, Thouraya TH wrote:
> Hello,

Hello,

Add Tycho into CC.

> 
> Please,i have a question about the restarting process of a LXC container.
> i run this script http://criu.org/Simple_loop in a container:
> 
> 1)
> ubuntu at worker:/home$ ./test.sh
> Wed Jan 14 22:30:23 CET 2015
> Wed Jan 14 22:30:24 CET 2015
> Wed Jan 14 22:30:25 CET 2015
> Wed Jan 14 22:30:26 CET 2015
> Wed Jan 14 22:30:35 CET 2015
> .......................

How do you enter into CT? Do you use screen or ssh?


> 2) i have done the dumping process:
>       root at g-3:/home# lxc-checkpoint -s -D /home/ImGLXC1Worker -n worker
> 3) i have restart the container:
>     root at g-3:/home/ImGLXC1Worker# lxc-checkpoint -r -D /home/ImGLXC1Worker -n
> worker
>      # lxc-ls -f
> NAME     STATE    IPV4        IPV6  GROUPS  AUTOSTART 
> -----------------------------------------------------
> worker   RUNNING  10.0.3.109  -     -       NO      

Thouraya, Could you increase verbose level for criu and show us dump and restore
logs? Tycho, could you explain how to do this with lxc-checkpoint?

Thanks,
Andrew

> 
> 4) ssh ubuntu@$(sudo lxc-info -n worker -H -i)
> 5) ubuntu at worker:/home$ ps
>   PID TTY          TIME CMD
>   304 pts/0    00:00:00 bash
>   318 pts/0    00:00:00 ps
> 
> The process "test" didn't restart!
> 
> i have done another test : ubuntu at worker:/home$ ./test.sh > Results.txt /
> Dumping the container / Restarting the container/ The process "test" didn't
> restart! and the file Results.txt didn't change !
> 
> Have you an idea please ?
> 
> Thanks a lot.
> Best Regards.

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