RE: [stellation-res] Client-server organization

["Mark C. Chu-Carroll" <mcc@xxxxxxxxxxxxxx>]

On Sat, 2003-01-25 at 23:50, Jonathan Gossage wrote:
> > >-----Original Message-----
> > >From: stellation-res-admin@xxxxxxxxxxxxxxx
> > >[mailto:stellation-res-admin@xxxxxxxxxxxxxxx]On Behalf Of Mark C.
> > >Chu-Carroll
> > >Sent: January 25, 2003 9:32 PM
> > >To: Stellation-res
> > >Subject: Re: [stellation-res] Client-server organization
> > >
> > >
> > >On Sat, 2003-01-25 at 14:43, Jonathan Gossage wrote:
> > >> At the moment, clients can run either talking to a Stellation server or
> > >> directly to a local database. I seem to remember some talk
> > >about wanting to
> > >> regularize this and provide an environment where all access
> > >from clients to
> > >> a repository goes through the Stellation server.
> > >>
> > >> Personally I prefer this mode as I don't particularly like
> > >multiple access
> > >> modes unless there are compelling benefits that come with them.
> > >
> > >I strongly believe that we should be presenting the system exclusively
> > >as a client-server system. The server is sufficiently lightweight that
> > >even if you're a single user always working on the same system, it's
> > >not going to be a burden to run a Stellation server. There are potential
> > >race conditions that are *deliberately* not fixed in the local access
> > >mode. (The way that remote access works, the server obtains a
> > >local-access repository handle. The kind of synchronization that would
> > >be necessary to eliminate the race conditions in local access would
> > >be complicated (especially in Postgres, due to some rather nasty
> > >bugs in postgres JDBC - and for the moment, postgres remains our
> > >primary DB), and would have a significant adverse effect on the
> > >performance of the remote access.)
> > >
> > >This is something that I've been pushing for a long time, but others
> > >still seem to find the local-access mode compelling. I don't really
> > >understand why - but for some reason, many people find the act of
> > >having to run a server to be an unreasonable burden.
> > >
> > >	-Mark
> > >
> > >
> The work I am doing right now on the new configuration support strikes right
> at the heart of this issue. Can I take it, unless we hear strong objections,
> that I should implement the configuration process with a pure client/server
> approach?

I'm in favor.

	-Mark


> 
> Regards
> 
> Jonathan
> 
> 
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-- 
Mark Craig Chu-Carroll,  IBM T.J. Watson Research Center  
*** The Stellation project: Advanced SCM for Collaboration
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