[CRIU] Live migration of LXC containers using Criu?

Pavel Emelyanov xemul at parallels.com
Tue Jun 23 14:21:49 PDT 2015


On 06/22/2015 10:21 PM, Divjyot sethi wrote:
> Hello Pavel,
> Thanks for the help -- I was finaly able to do end-end live migration with Criu (version 1.5.2). I did not
> remove the cgroups but just made sure that the directory structure at destination cgroup matched at the 
> source to make this work.

That's great news!

> One question: this works with Criu version 1.5.2. I had done some development with Criu version 1.3.1. In
> order to be on a faster track, I was hoping to be able to use Criu version 1.3.1 for live migration -- do 
> you know if live migration could be made to work with that version? Currently I get an RPC error with that version -- .
> 
> Error: Exception: CRIU RPC error (0/8)
> Error (cr-service.c:705): Can't recv request: Connection reset by peer

Well, we did p.haul first with 1.3, then criu has changed significantly. If it
is still important for you to stay with 1.3 we can try to resolve why this got
broken, but I suggest you to better switch on 1.6.

-- Pavel



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