Greetings Laurence, I would like to see us in the TeraGrid contribute to the development of the official OGF GLUE2 XML rendering (or renderings). Please let Warren and I know what we can do in that respect. Thanks, JP On Oct 2, 2009, at 9:29 AM, Laurence Field wrote:
I would like to second Stevens comment. Those that need XML should try to define an agreed rendering. We should probably start with the Teragrid one as a baseline and go from there. If anyone thinks that there are any issues that need discussing we can always collect them and have a phone conference to sort them out. For the LDAP rendering it only took a could of calls. Is there anyone who is motivated enough and has enough time to lead this effort?
Laurence
stephen.burke@stfc.ac.uk wrote:
glue-wg-bounces@ogf.org
[mailto:glue-wg-bounces@ogf.org] On Behalf Of Warren Smith said: Of course, the TeraGrid GLUE 2 XML Schema isn't a standard and I can't say how similar it will be to an official OGF GLUE 2 XML
Schema.
Well, this is supposed to be a community effort so it should be possible for you to contribute to the definition of the official XML rendering ... however personally I'm not involved in that so I can't comment directly.
In fact, one warning I'd give about the TeraGrid schema is that we chose a flat hierarchy of XML elements in that schema (e.g. ComputeActivity is a sibling of ComputeShare instead of a child of ComputeShare). The last discussions I remember seeing on the GLUE working group list seemed to have more people favoring a deeper hierarchy...
I think Nordugrid favoured that. However, for the LDAP rendering we tried to keep the abstract schema properties as much as possible - LDAP obviously forces you to have a tree, but the objects are all linked via foreign keys and unqiue IDs so you don't need the tree to navigate. In that case you could potentially restructure the tree without changing any queries. If XML follows the same kind of route you could even do joint queries across representations.
Stephen
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