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[p4-feedback] Protege, Content negotiation and XML DTDs (Very slow document opening)
tredmond at stanford.edu
Thu Mar 17 09:34:47 PDT 2011
There is a gforge for this item. I saw this problem recently with the
BRO ontology. I just added an extra comment to this item because the
same pattern also slows down the import ontology wizard. I may have a
significant improvement in an update for this problem later today.
On 03/17/2011 08:27 AM, Marcus Cobden wrote:
> I'm working on an ontology which imports another which uses content
> negotiation to serve RDF from its URI.
> Specifically i am importing http://purl.org/net/provenance/ns.
> From what I can tell, protege isn't setting the request headers
> correctly, resulting in it being given the XHTML+RDFA version rather
> then the RDF version.
> It seems this causes protege's XML parser to go and download the XHTML
> These are very slow to retrieve (just over 30s per module) as the W3C
> is trying to encourage application caching .
> Eventually it will load correctly, but protege really should be
> caching things.
> So, in summary:
> * Protege should set Accept headers when importing ontologies.
> * Protege should be caching DTDs
>  http://www.w3.org/blog/systeam/2008/02/08/w3c_s_excessive_dtd_traffic
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