[Devel] Re: [ckrm-tech] [PATCH 0/2] resource control file system - aka containers on top of nsproxy!

[Eric W. Biederman]

Matt Helsley <matthltc at us.ibm.com> writes:

> On Thu, 2007-03-08 at 16:32 +-1300, Sam Vilain wrote:
>
> +ADw-snip+AD4
>
> +AD4 Kirill, 06032418:36+-03:
> +AD4 +AD4 I propose to use +ACI-namespace+ACI naming.
> +AD4 +AD4 1. This is already used in fs.
> +AD4 +AD4 2. This is what IMHO suites at least OpenVZ/Eric
> +AD4 +AD4 3. it has good acronym +ACI-ns+ACI.
> +AD4 
> +AD4 Right.  So, now I'll also throw into the mix:
> +AD4 
> +AD4   - resource groups (I get a strange feeling of d+AOk-j+AOA v+APo there)
>
> +ADw-offtopic+AD4
> Re: d+AOk-j+AOA v+APo: yes+ACE
>
> It's like that Star Trek episode ... except we can't agree on the name
> of the impossible particle we will invent which solves all our problems.
> +ADw-/offtopic+AD4
>
> At the risk of prolonging the agony I hate to ask: are all of these
> groupings really concerned with +ACI-resources+ACI?
>
> +AD4   - supply chains (think supply and demand)
> +AD4   - accounting classes
>
> CKRM's use of the term +ACI-class+ACI drew negative comments from Paul Jackson
> and Andrew Morton about this time last year. That led to my suggestion
> of +ACI-Resource Groups+ACI. Unless they've changed their minds...
>
> +AD4 Do any of those sound remotely close?  If not, your turn :)
>
> I'll butt in here: task groups? task sets? confuselets? +ADs)

Generically we can use subsystem now for the individual pieces without
confusing anyone.

I really don't much care as long as we don't start redefining
container as something else.  I think the IBM guys took it from
solaris originally which seems to define a zone as a set of
isolated processes (for us all separate namespaces).  And a container
as a set of as a zone that uses resource control.  Not exactly how
we have been using the term but close enough not to confuse someone.

As long as we don't go calling the individual subsystems or the
process groups they need to function a container I really don't care.

I just know that if we use container for just the subsystem level
it makes effective communication impossible, and code reviews
essentially impossible.  As the description says one thing the
reviewer reads it as another and then the patch does not match
the description.  Leading to NAKs.

Resource groups at least for subset of subsystems that aren't
namespaces sounds reasonable.  Heck resource group, resource
controller, resource subsystem, resource just about anything seems
sane to me.

The important part is that we find a vocabulary without doubly
defined words so we can communicate and a small common set we can
agree on so people can work on and implement the individual
resource controllers/groups, and get the individual pieces merged
as they are reading.

Eric
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