Re: [nfsv4] Last call for NSDB Protocol for Federated Filesystems (Oct 4 - Oct 22nd)

Nicolas Williams <Nicolas.Williams@oracle.com> Mon, 08 November 2010 16:44 UTC

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Date: Mon, 08 Nov 2010 10:44:34 -0600
From: Nicolas Williams <Nicolas.Williams@oracle.com>
To: James Lentini <jlentini@netapp.com>
Message-ID: <20101108164434.GC6536@oracle.com>
References: <E043D9D8EE3B5743B8B174A814FD584F0A6BFD9C@TK5EX14MBXC126.redmond.corp.microsoft.com> <alpine.LFD.2.00.1010221251120.4707@jlentini-linux.nane.netapp.com> <4CD1DFE4.1060004@oracle.com> <20101104193632.GX6536@oracle.com> <alpine.LFD.2.00.1011051500050.14303@jlentini-linux.nane.netapp.com> <20101105205132.GP6536@oracle.com> <AANLkTi=octHZF_Cf0kqbfoL78jOTCfmq_pYDoMW1B2Pr@mail.gmail.com> <alpine.LFD.2.00.1011081004390.14303@jlentini-linux.nane.netapp.com>
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Cc: nfsv4@ietf.org
Subject: Re: [nfsv4] Last call for NSDB Protocol for Federated Filesystems (Oct 4 - Oct 22nd)
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On Mon, Nov 08, 2010 at 11:06:51AM -0500, James Lentini wrote:
> As Nico suggested, one approach to preventing incompatible extensions 
> would be an IANA-maintained registry of annotation keys. I'm not 
> certain of how such a registry would function, but I suspect it would 
> only prevent namespace collisions. In other words, the registry should 
> prevent two different definitions of the annotation key "foo", but 
> would it detect that annotation key "foo" and annotation key "bar" 
> implemented overlapping ideas?

The registration rules could be such that a description of the value
contents (semantic and syntactic) would be required, thus achieving more
than collision prevention: the registry would also enable
interoperability.

Nico
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