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Re: [ldapext] nfsv4 vs the ldap consistency model



On Friday 21 November 2008 21:49:30 Howard Chu wrote:
> Leif Johansson wrote:
> > So I had a talk with the nfsv4 wg today (and on their list earlier). The
> > are trying to build AFS-style volume location for NFS using LDAP and I
> > think they may have a problem with the LDAP consistency model: i.e
> > "eventually consistent" for a couple of their usecases.
> >
> > I won't go into details unless people particularly care but I think we
> > may need an I-D (something for a bof in SF perhaps) describing a control
> > which asks for the result of an update operation to be  delayed until a
> > certain criterion (eg in the form of a compare condition) is fulfilled on
> > all "slaves". Implementation details would differ depending on the
> > precise way replication is done for that vendor.
> >
> > Does that sound like something you would
> >
> > a) barf at
> > b) laugh at
> > c) ignore
> > d) review given that someone wrote it up?
>
> Sounds like what's really wanted is a distributed transaction. Why not just
> call it that?

Not really - I don't think they need commit/rollback or the ability to modify
multiple entries in a transaction.

	Cheers Leif

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