[gin-info] Site UniqueID
Oxana Smirnova
oxana.smirnova at hep.lu.se
Thu Oct 26 12:07:21 CDT 2006
Hi Laurence,
I am personally very sceptical of lattitude and longitude usefullness
and especially the "Location" thingy - there is practically no way to
validate it or fill automatically, so it carries no *reliable*
information. That is, I can set up a site in Berlin and give the
coordinates of Rome, for some practical funding reasons - would anybody
be happy? It can not be used even for network proximity estimate: e.g.
Lund and Copenhagen have few seconds of coordinate difference, and yet
they are separated by 1500 kilometers (yes, fifteen hundred) of cable.
However, if the unique ID will contain an IP address of something that
can be resolved by DNS, one could use one of the IP-to-geolocation
databases, either free or commercial one, and make at least an impartial
estimate for site location. Also, sites in the same domain tend to have
better connectivity :-)
Cheers,
Oxana
Laurence Field пишет:
> We have shown that for the "grid-on-a-map" use case we MUST have the
> following attributes
>
> UniqueID:
> Latitude:
> Longitude:
> Location:
>
> SHOULD have the following attributes.
>
> Name:
> Description:
> Email:
> Web:
>
> and CAN have optional tagging attributes.
>
> On question that remains is what should be the format of the UniqueID.
> This is important as when we have interoperating grids, the rules to
> chose this UniqueID in the different grid might not be the same and
> hence this could case a clash. This is a similar problem to the VO
> naming issue which came up in the gin-auth group. In the past a
> suggestion was made that this should be the domain name of the site.
> What are peoples views on this? Do they think that this is a good idea
> or can anyone suggest a better alternative?
>
> Laurence
>
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