Re: [Virtuoso-users] jena provider instead of rdf4j provider

Hi Henrik, Jena timeout exception Exception in thread "main" org.apache.jena.shared.JenaException: Can not create ResultSet.:virtuoso.jdbc4.VirtuosoException: Virtuoso Communications Link Failure (timeout) : Read timed out RDF4J timeout exception Exception in thread "main" org.eclipse.rdf4j.

Re: [Virtuoso-users] jena provider instead of rdf4j provider

Thanks Hugh, you are really helpfull. If I use VirtuosoQueryExecution vqe = VirtuosoQueryExecutionFactory.create(query, graph); vqe.setTimeout(timeout); What kind of exception does it throw ? I can't find it in the documantation. I know that TupleQuery tupleQuery = connection.prepareTupleQuery

Re: [Virtuoso-users] jena provider instead of rdf4j provider

Hi Henrik, For query execution in Jena: class VirtGraph method public void setQueryTimeout(int seconds) OR class VirtuosoQueryExecution method /** * Set time, in milliseconds * * @see #setTimeout(long, TimeUnit) */ public void setTimeout(long timeout) see ht

Re: [Virtuoso-users] jena provider instead of rdf4j provider

Thanks Hugh, how do I use the timeot within my java code where I use virtDataSource = new VirtuosoDataSource(); virtDataSource.setServerName(serverAddress); virtDataSource.setPortNumber(Integer.parseInt(serverPort)); virtDataSource.setUser(user); virtDataSource.setPassword(password); So there i

Re: [Virtuoso-users] jena provider instead of rdf4j provider

Hi Henrik, Glad to hear you have solved the problem. As the Virtuoso Jena and RDF4J provider use the Virtuoso JDBC Driver for connecting to the Virtuoso Server you can pass any of the connect string options of the JDBC driver, one of which is "/TIMEOUT=", to the providers as detailed at:

Re: [Virtuoso-users] jena provider instead of rdf4j provider

Hi Hugh, Problem solved, I had to call new virtGraph = VirtGraph() for each query and not only once. Before I only called VirtuosoQueryExecutionFactory.create(sparql, virtGraph) in each query, using the same virtGraph. A partially related question : How do I properly use query timeouts for both

Re: [Virtuoso-users] jena provider instead of rdf4j provider

Hi Henrik, Can you please provide more detailed example jena3 & rdf4j sample code demonstrating how you are seeking to use both such that we can obtain a better understanding of the apparent concurrent query execution problem ? Best Regards Hugh Williams Professional Services OpenLink Software,

Re: [Virtuoso-users] jena provider instead of rdf4j provider

Hi Hugh, the problem is that the jena code is blocking while executing whereas the rdf4j code is non blocking and does allow multiple simultaneous queries. So I'm looking for a non blocking jena solution. Is there any ? Best, Jenrik Am 22.11.2017 um 00:50 schrieb Hugh Williams: Hi Henrik,

Re: [Virtuoso-users] jena provider instead of rdf4j provider

Hi Henrik, The jena code can be simplified to the following to give an equivalent execution to rdf4j: String query = "select ."; VirtuosoQueryExecution vqe = VirtuosoQueryExecutionFactory.create(query, virtGraph); Best Regards Hugh Williams Professional Services OpenLink Software, Inc.

[Virtuoso-users] jena provider instead of rdf4j provider

Hi, what is a comaparable jena provider query to this rdf4j provider query ? TupleQuery tupleQuery = connection.prepareTupleQuery(QueryLanguage.SPARQL, query); I want to use the jena provider instead and I'm using this threaded so it must be connection based. My current jena implementation is u