[Virtuoso-users] Geo Spatial

Hello, Do I have to do anything to enable the spatial features of Virtuoso? I have a default installation of virtuoso open source version 06.01.3127. When I run the following query: SQL>select st_point (0, 52); I get this error: SQLState: 42001 Message: SR185: Undefined procedure DB.DBA.st_po

[Virtuoso-users] Bug in SPARQL XML results

Hi, This is possible a bug in Version: 06.00.3123 My endpoint is http://bio2rdf.semanticscience.org:8002/sparql If you run the following query: select distinct * where { ?p ?o } and ask for results in XML. The resulting XML has this two problems: 1)

Re: [Virtuoso-users] Virtuoso + Proxy

It's working now. I had to set the parameter HTTPProxyEnabled in the virtuoso.ini file. Alex On 1-Aug-09, at 10:04 PM, Alexander De Leon wrote: Thanks Hugh, I added rules to allow access to HTTP and PROXY. This is the content of the http_acl table: HTTP1 -1 *

Re: [Virtuoso-users] Virtuoso + Proxy

k Software Web: http://www.openlinksw.com Support: http://support.openlinksw.com Forums: http://boards.openlinksw.com/support On 28 Jul 2009, at 15:32, Alexander De Leon wrote: Hi, I get the following error when I try to access the Virtuoso's SPARQL endpoint through a proxy: Error 420

[Virtuoso-users] Virtuoso + Proxy

Hi, I get the following error when I try to access the Virtuoso's SPARQL endpoint through a proxy: Error 42000 HT059: Proxy access to codemonkey.dumontierlab.com:8890 denied due to access control Is there a way to prevent this? Why does virtuoso care if I use a proxy or not? Thanks Al

[Virtuoso-users] Cluster question

Hi, Is it possible to use the cluster functionality (http://docs.openlinksw.com/virtuoso/clusteroperation.html ) with the open source version? Thanks Alex

[Virtuoso-users] Virtuoso 6 crashes

Hi, I found that Virtuoso 6 dies when you do the following: 1) Open conductor 2) Log in 3) Go into the "System Admin" tab 4) Go into the "Monitor" tab 5) Go into the "Space" tab The following message is printed on the logs: GPF: insert.c:151 page read with no key defd Thanks, Alex

[Virtuoso-users] Concurrency bug in Vituoso+JDBC+Jena

Hi all, I think I figured out what the problem is with the JDBC driver. I just happened to add a sleep of 10 milliseconds after each insert, and that resolved all the issues I had before. This suggest that there is some ugly concurrency bug on Virtuoso or its JDBC driver. The problems I ha

[Virtuoso-users] Exception when using concurrent JDBC connections

Hi, Does Virtuoso 6 supports concurrent JDBC connections? When I try to execute simultaneous operations (either from multiples threads or multiple processes) I get the following exception: Caused by: com.hp.hpl.jena.update.UpdateException: Convert results are FAILED.: at virtuoso

Re: [Virtuoso-users] Limited number of SPARQL inserts ?

Williams Professional Services OpenLink Software Web: http://www.openlinksw.com Support: http://support.openlinksw.com Forums: http://boards.openlinksw.com/support On 8 Jun 2009, at 18:44, Alexander De Leon wrote: I'm inserting RDF triples into Virtuoso Open Source 6.0.0-tp1. The triple

[Virtuoso-users] Limited number of SPARQL inserts ?

I'm inserting RDF triples into Virtuoso Open Source 6.0.0-tp1. The triples are inserted one by one using the following code: for (StmtIterator i = rdf.listStatements(); i.hasNext();) { Statement stmt = i.nextStatement(); sparql = "INSERT INTO GRAPH <" + graphUri + "> { " + NTripleStam