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 is no connect string, just a DataSource -> Graph and the Query
String.
Same for rdf4j with
rdf4jRepo = new HTTPRepository(serverAddress, repoName);
Best,
Henrik
Am 22.11.2017 um 17:29 schrieb Hugh Williams:
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=<timeout_secs>", to the providers as detailed at:
http://docs.openlinksw.com/virtuoso/jdbcurl4mat/
Best Regards
Hugh Williams
Professional Services
OpenLink Software, Inc. // http://www.openlinksw.com/
Weblog -- http://www.openlinksw.com/blogs/
LinkedIn -- http://www.linkedin.com/company/openlink-software/
Twitter -- http://twitter.com/OpenLink
Google+ -- http://plus.google.com/100570109519069333827/
Facebook -- http://www.facebook.com/OpenLinkSoftware
Universal Data Access, Integration, and Management Technology Providers
On 22 Nov 2017, at 12:28, Henrik Schmidt <h...@informatik.uni-kiel.de> wrote:
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 jena and rdf4j providers
to prevent sparql queries running a very long time on large database.
Is there a good documentation ? I'm inexperienced and just learning.
Best,
Henrik
Hugh Williams schrieb am 22.11.2017 um 13:19:
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, Inc. // http://www.openlinksw.com/
Weblog -- http://www.openlinksw.com/blogs/
LinkedIn -- http://www.linkedin.com/company/openlink-software/
Twitter -- http://twitter.com/OpenLink
Google+ -- http://plus.google.com/100570109519069333827/
Facebook -- http://www.facebook.com/OpenLinkSoftware
Universal Data Access, Integration, and Management Technology Providers
On 22 Nov 2017, at 08:05, Henrik Schmidt <h...@informatik.uni-kiel.de> wrote:
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,
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. // http://www.openlinksw.com/
Weblog -- http://www.openlinksw.com/blogs/
LinkedIn -- http://www.linkedin.com/company/openlink-software/
Twitter -- http://twitter.com/OpenLink
Google+ -- http://plus.google.com/100570109519069333827/
Facebook -- http://www.facebook.com/OpenLinkSoftware
Universal Data Access, Integration, and Management Technology Providers
On 21 Nov 2017, at 14:56, Henrik Schmidt <h...@informatik.uni-kiel.de> wrote:
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 using something like this :
Query sparql = QueryFactory.create(query);
VirtuosoQueryExecution vqe =
VirtuosoQueryExecutionFactory.create(sparql, virtGraph);
This will block the port (1111) until completed whereas the rdf4j code
can handle multiple parallel queries.
Best,
Henrik
------------------------------------------------------------------------------
Check out the vibrant tech community on one of the world's most
engaging tech sites, Slashdot.org! http://sdm.link/slashdot
_______________________________________________
Virtuoso-users mailing list
Virtuoso-users@lists.sourceforge.net
https://lists.sourceforge.net/lists/listinfo/virtuoso-users
------------------------------------------------------------------------------
Check out the vibrant tech community on one of the world's most
engaging tech sites, Slashdot.org! http://sdm.link/slashdot
_______________________________________________
Virtuoso-users mailing list
Virtuoso-users@lists.sourceforge.net
https://lists.sourceforge.net/lists/listinfo/virtuoso-users
