Re: How to publish SPARQL endpoint limits/metadata?

Hi Frans,

Perhaps VoID could help if you create your own feature [1] which 
describes your limitation added on the server?

As a sidenote, maybe next to a SPARQL endpoint, just providing the 
datadumps would be great as well?

[1] http://www.w3.org/TR/void/#features

Kind regards,

Pieter


On 10/08/2013 12:05 PM, Barry Norton wrote:
> Frans, SPARQL 1.1 introduced the notion of Service Descriptions [1]. 
> Although these probably don't go far enough in the standard they are, 
> I believe, extensible.
>
> Barry
>
>
> [1] http://www.w3.org/TR/sparql11-service-description/
>
>
> On Tue, Oct 8, 2013 at 10:46 AM, Frans Knibbe | Geodan 
> <frans.knibbe@geodan.nl <mailto:frans.knibbe@geodan.nl>> wrote:
>
>     Hello,
>
>     I am experimenting with running SPARQL endpoints and I notice the
>     need to impose some limits to prevent overloading/abuse. The
>     easiest and I believe fairly common way to do that is to LIMIT the
>     number of results that the endpoint will return for a single query.
>
>     I now wonder how I can publish the fact that my SPARQL endpoint
>     has a LIMIT and that is has a certain value.
>
>     I have read the thread Public SPARQL endpoints:managing (mis)-use
>     and communicating limits to users
>     <http://lists.w3.org/Archives/Public/public-lod/2013Apr/0198.html>, but
>     that seemed to be about how to communicate limits during querying.
>     I would like to know if there is a way to communicate limits
>     before querying is started.
>
>     It seems to me that a logical place to publish a limit would be in
>     the metadata of the SPARQL endpoint. Those metadata could contain
>     all limits imposed on the endpoint, and perhaps other things like
>     a SLA or a maintenance schedule... data that could help in the
>     proper use of the endpoint by both software agents and human users.
>
>     So perhaps my enquiry really is about a standard for publishing
>     SPARQL endpoint metadata, and how to access them.
>
>     Greetings,
>     Frans
>
>
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Received on Tuesday, 8 October 2013 10:22:33 UTC