Hi, I'm executing the following SPARQL query in JAVA... PREFIX rdf: <http://www.w3.org/1999/02/22-rdf-syntax-ns#> PREFIX rdfs: <http://www.w3.org/2000/01/rdf-schema#> SELECT ?s ?sl ?p ?o ?ol ?range ?domain WHERE { ?s rdf:type <http://dbpedia.org/ontology/Person> . ?s rdfs:label ?sl . ?s ?p ?o . ?o rdfs:label ?ol . FILTER ( langMatches( lang(?sl), "de" ) && langMatches( lang(?ol), "de" ) ) ?p rdfs:range ?range . ?p rdfs:domain ?domain . } LIMIT 10000 // tried different LIMITs ranging from 1000 - 100.000 OFFSET 0
... like this: QueryEngineHTTP qexec = new QueryEngineHTTP(SPARQL_ENDPOINT_URI, query); qexec.addDefaultGraph(DBPEDIA_DEFAULT_GRAPH); But I get, regardless of the endpoint I'm choosing, http://dbpedia.org/sparql or http://live.dbpedia.org/sparql, only this error message. What is this error? Is there a way to avoid it? Exception in thread "main" HttpException: HttpException: 502 Proxy Error: HttpException: 502 Proxy Error at com.hp.hpl.jena.sparql.engine.http.HttpQuery.execCommon(HttpQuery.java:340) at com.hp.hpl.jena.sparql.engine.http.HttpQuery.execGet(HttpQuery.java:190) at com.hp.hpl.jena.sparql.engine.http.HttpQuery.exec(HttpQuery.java:147) at com.hp.hpl.jena.sparql.engine.http.QueryEngineHTTP.execSelect(QueryEngineHTTP.java:117) at de.uni_leipzig.simba.boa.backend.configuration.command.impl.WriteRelationToFileCommand.getKnowledge(WriteRelationToFileCommand.java:208) at de.uni_leipzig.simba.boa.backend.configuration.command.impl.WriteRelationToFileCommand.execute(WriteRelationToFileCommand.java:49) at de.uni_leipzig.simba.boa.backend.configuration.command.impl.WriteRelationToFileCommand.main(WriteRelationToFileCommand.java:38) Caused by: HttpException: 502 Proxy Error at com.hp.hpl.jena.sparql.engine.http.HttpQuery.execCommon(HttpQuery.java:301) ... 6 more Kind regards, Daniel ------------------------------------------------------------------------------ All the data continuously generated in your IT infrastructure contains a definitive record of customers, application performance, security threats, fraudulent activity and more. Splunk takes this data and makes sense of it. Business sense. IT sense. Common sense. http://p.sf.net/sfu/splunk-d2d-oct _______________________________________________ Dbpedia-discussion mailing list Dbpedia-discussion@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/dbpedia-discussion
