Thanks Rupert, I experienced similar problems from time to time and concluded that it > will most likely related to dbpedia denying additional requests an IP > already sent a lot of them in a short period of time.
I had a similar guess, but the tests I conduct with curl are from the same machine hosting Stanbol. However it is just an assumption so I am working currently to > improvements to the loggings so that the content sent by the Server in > case of 4** and 5** responses is printed to the log. Perfect, I'll test it as soon as it is avail. Thanks, David On Wed, Jul 20, 2011 at 4:24 PM, Rupert Westenthaler < [email protected]> wrote: > Hi David > > On Wed, Jul 20, 2011 at 1:07 PM, David Riccitelli > <[email protected]> wrote: > > I'm running a query using the engines end-point. Eventually I get a > failure > > with an exception [1] in the logs, whose underlying cause seems to be: > > *Server returned HTTP response code: 500 for URL*: > > > http://dbpedia.org/sparql?query=SELECT+DISTINCT+?id+%0AWHERE+%7B+%0A++%7B+%0A++++?id+%3Chttp://www.w3.org/1999/02/22-rdf-syntax-ns%23type%3E+%3Chttp://dbpedia.org/ontology/Organisation%3E+.+%0A++++?id+%3Chttp://www.w3.org/2000/01/rdf-schema%23label%3E+?tmp1+.+%0A++++++?tmp1+bif:contains+'%22News%22+AND+%22of%22+AND+%22the%22+AND+%22World%22'+.+%0A%7D+%0A%7D+%0AORDER+BY+DESC+(+%3CLONG::IRI_RANK%3E+(?id)+)+%0ALIMIT+20+%0A&format=application/sparql-results%2Bjson > > > > But if I copy and paste the URL and run it with curl, I don't get 500. > How > > is that possible? > > I experienced similar problems from time to time and concluded that it > will most likely related to dbpedia denying additional requests an IP > already sent a lot of them in a short period of time. > However it is just an assumption so I am working currently to > improvements to the loggings so that the content sent by the Server in > case of 4** and 5** responses is printed to the log. > > This should help to see what is really happening. > > best > Rupert > > -- > | Rupert Westenthaler [email protected] > | Bodenlehenstraße 11 ++43-699-11108907 > | A-5500 Bischofshofen > -- David Riccitelli Interact SpA Via A. Bargoni 78 (scala F) 00153 Roma T +39 06 58318 301 F +39 06 58318 303
