Hi,

On Tue, May 19, 2009 at 6:25 PM, Kingsley Idehen <kide...@openlinksw.com> wrote:
> Aldo Bucchi wrote:
>>
>> Hi,
>>
>> I am receiving an HTTP error when querying lod.openlinksw.com/sparql
>> The query is valid SPARQL, trust me. This appears to be a CN error of some
>> kind.
>>
>>
>> POST /sparql HTTP/1.1
>> Content-Type: application/x-www-form-urlencoded; charset=utf-8
>> Accept: application/x-binary-rdf-results-table
>> Accept: application/sparql-results+xml;q=0.8
>> Accept: application/xml;q=0.8
>> User-Agent: Jakarta Commons-HttpClient/3.1
>> Host: lod.openlinksw.com
>> Content-Length: 662
>>
>>
>> queryLn=SPARQL&query=SELECT+%3Fvalue+WHERE+%7B+%3Chttp%3A%2F%2Fwww.univrz.com%2Fdataspace%2Fperson%2Faldo.bucchi%23this%3E+%3Fp+%3Fvalue+.+FILTER%28+%3Fp+%3D+%3Chttp%3A%2F%2Fwww.w3.org%2F2000%2F01%2Frdf-schema%23label%3E+%7C%7C+%3Fp+%3D+%3Chttp%3A%2F%2Fdbpedia.org%2Fproperty%2Fname%3E+%7C%7C+%3Fp+%3D+%3Chttp%3A%2F%2Fxmlns.com%2Ffoaf%2F0.1%2Fname%3E+%7C%7C+%3Fp+%3D+%3Chttp%3A%2F%2Fpurl.org%2Fdc%2Felements%2F1.1%2Ftitle%3E+%7C%7C+%3Fp+%3D+%3Chttp%3A%2F%2Frdfs.org%2Fsioc%2Fns%23name%3E+%7C%7C+%3Fp+%3D+%3Chttp%3A%2F%2Fwww.w3.org%2F2005%2FAtom%23title%3E+%7C%7C+%3Fp+%3D+%3Chttp%3A%2F%2Fwww.w3.org%2F2004%2F02%2Fskos%2Fcore%23label%3E+%29+%7D+LIMIT+1&infer=true
>>
>>
>>
>> HTTP/1.1 406 Unacceptable
>> Server: Virtuoso/06.00.3119 (Linux) x86_64-unknown-linux-gnu  VDB
>> Connection: Keep-Alive
>> Content-Type: text/html; charset=UTF-8
>> Date: Tue, 19 May 2009 21:43:24 GMT
>> Accept-Ranges: bytes
>> Alternates: {"sparql" 1 {type application/sparql-results+xml} {charset
>> UTF-8} {length 292}}
>> Content-Length: 383
>>
>> <!DOCTYPE HTML PUBLIC "-//IETF//DTD HTML 2.0//EN">
>> <html><head>
>> <title>406 Not Acceptable</title>
>> </head><body>
>> <h1>406 Not Acceptable</h1>
>> <p>An appropriate representation of the requested resource sparql
>> could not be found on this server.</p>
>> Available variant(s):
>> <ul>
>> <li><a href="sparql">sparql</a> , type application/sparql-results+xml,
>> charset UTF-8</li>
>> </ul>
>> </body></html>
>>
>>
>>
>
> Yes, it looks like a transparent content negotiation glitch introduced by
> the latest binary behind that instance :-(
>
> Anyway, we'll double check.

I can confirm we now introduced this bug to a V5 instance when
upgrading, so it is most probably something recent.
This kills our SPARQLing clients, thus rendering our apps unusable.

Yikes!

>
> --
>
>
> Regards,
>
> Kingsley Idehen       Weblog: http://www.openlinksw.com/blog/~kidehen
> President & CEO OpenLink Software     Web: http://www.openlinksw.com
>
>
>
>
>



-- 
Aldo Bucchi
U N I V R Z
Office: +56 2 795 4532
Mobile:+56 9 7623 8653
skype:aldo.bucchi
http://www.univrz.com/
http://aldobucchi.com/

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