Re: [Devel] OLS paper topics

["Serge E. Hallyn" <serue-r/Jw6+rmf7HQT0dZR+AlfA@public.gmane.org>]

Quoting Cedric Le Goater (clg-NmTC/0ZBporQT0dZR+AlfA@public.gmane.org):
>
>> Why is that a conflict w.r.t resource management, isn't that more of a 
>> cgroup
>> feature - task migration. We need task migration for resource management, 
>> but
>> task migration is a system administrator/management function. I don't see 
>> the
>> conflict, but may be I am missing something very obvious.
>
> This is something we may want to dig. from a checkpoint/restart POV, a 
> 'container' acts a whole and you don't want tasks to be migrated from a 
> container to another. They have to share the same container properties.  
> it might be possible to solve that issue from user space or by making sure 
> a set of cgroups are dedicated to a container. 

This is certainly a good topic for the mini-summit.

The simple answer of course is you create a container for the virtual
server, then create containers within those around the applications you
want to checkpoint.  But depending on logistics (i.e. per-container
swapfiles) this could get complicated.

-serge