Re: [PATCH 0/7] dlm: overview

From: Daniel Phillips
Date: Fri Apr 29 2005 - 15:58:48 EST

On Friday 29 April 2005 13:13, David Lang wrote:
> On Thu, 28 Apr 2005, Daniel Phillips wrote:
> > On Thursday 28 April 2005 20:33, David Lang wrote:
> >> how is this UUID that doesn't need to be touched by an admin, and will
> >> always work in all possible networks (including insane things like
> >> backup servers configured with the same name and IP address as the
> >> primary with NAT between them to allow them to communicate) generated?
> >>
> >> there are a lot of software packages out there that could make use of
> >> this.
> >
> > Please do not argue that the 32 bit node ID ints should be changed to
> > uuids, please find another way to accommodate your uuids.
> you misunderstand my question.
> the claim was that UUID's are unique and don't have to be assigned by the
> admins.
> I'm saying that in my experiance there isn't any standard or reliable way
> to generate such a UUID and I'm asking for the people makeing the
> claim to educate me on what I'm missing becouse a reliable UUID for linux
> on all hardware would be extremely useful for many things.

OK, that sound plausible. However, just to be 100% clear, do you agree that
a) simple integer node numbers are better (because simpler) in cman proper
and b) uuids can be layered on top of a simple integer scheme, using a pair
of mappings?


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