Re: Jena / Stanbol success stories?

2014-11-25 Thread Rob Walpole
Hi Phil, As Adam says we are using Apache Jena at the UK National Archives to power the catalogue of our digitial repository. The set up we use has Jena TDB as the triplestore and Jena Fuseki as the front end for reading and writing data over HTTP. We also use other components of the Jena project

Re: Thread pool not shutting down properly

2014-11-25 Thread Andy Seaborne
Stephen, (version?) How are you shutting down tomcat? It could be that the problem is that the thread is not a daemon thread which can block the JVM exiting when the main thread returns. Does this happen every time because I through that when all timers expired, the

Re: Jena / Stanbol success stories?

2014-11-25 Thread Rob Vesse
Phillip From a commercial standpoint it is worth noting that several major triple store vendors actually use various parts of the Jena stack to provide some parts of their RDF and SPARQL implementations. Details differ by vendor but my rough understanding is as follows: - Cray (my employer)

Re: Jena / Stanbol success stories?

2014-11-25 Thread Andy Seaborne
On 24/11/14 03:19, Phillip Rhodes wrote: Hi all, I was just wondering if anybody knows of, or is involved with, any projects using Jena and/or Stanbol which (have been|can be) discussed and cited publicly? A local company that I've been talking to is interested in possibly using SemWeb

Re: Jena / Stanbol success stories?

2014-11-25 Thread Sergio Fernández
Hi Phil, the Redlink Platform combines both Stanbol and Marmotta following a PaaS approach, if that count for you as for real. Further details at http://dev.redlink.io/api Cheers, On 25/11/14 11:23, Rob Walpole wrote: Hi Phil, As Adam says we are using Apache Jena at the UK National

Re: Jena / Stanbol success stories?

2014-11-25 Thread Alessandro Adamou
In the Listening Experience Database, we are using Fuseki and the Stanbol Entityhub backing up Drupal 7 to support a crowd-sourced linked dataset. http://www.open.ac.uk/Arts/LED http://led.kmi.open.ac.uk/linkeddata/ best Alessandro On 24/11/2014 03:19, Phillip Rhodes wrote: Hi all, I was

Re: Thread pool not shutting down properly

2014-11-25 Thread Stephen Owens
Sorry, version is 2.11.1 Yes, it happens every time. We shut down using the standard ./shutdown.sh script in tomcat/bin. It's a bit hard to create a reproducible on it but I could give it a shot to see if I can prove that the thread pool does block even after expiry. You're right that it's not a

Re: Jena / Stanbol success stories?

2014-11-25 Thread Phillip Rhodes
Thanks Bob, that's good to know! Phil This message optimized for indexing by NSA PRISM On Mon, Nov 24, 2014 at 3:54 PM, Bob DuCharme b...@snee.com wrote: Hi Phil, TopQuadrant's TopBraid platform (and hence our entire product line) has been built on Jena since before Stanbol existed. See

Re: Jena / Stanbol success stories?

2014-11-25 Thread Phillip Rhodes
Hey Andy, thanks very much. This is great stuff. Phil This message optimized for indexing by NSA PRISM On Tue, Nov 25, 2014 at 6:25 AM, Andy Seaborne a...@apache.org wrote: On 24/11/14 03:19, Phillip Rhodes wrote: Hi all, I was just wondering if anybody knows of, or is involved with, any

Re: Jena / Stanbol success stories?

2014-11-25 Thread Phillip Rhodes
That's really useful, thank you so much! Phil This message optimized for indexing by NSA PRISM On Tue, Nov 25, 2014 at 5:23 AM, Rob Walpole robkwalp...@gmail.com wrote: Hi Phil, As Adam says we are using Apache Jena at the UK National Archives to power the catalogue of our digitial

Re: Jena / Stanbol success stories?

2014-11-25 Thread Phillip Rhodes
Hey Rob, thanks for the pointers. Much appreciated. Phil This message optimized for indexing by NSA PRISM On Tue, Nov 25, 2014 at 6:07 AM, Rob Vesse rve...@dotnetrdf.org wrote: Phillip From a commercial standpoint it is worth noting that several major triple store vendors actually use

Re: Jena / Stanbol success stories?

2014-11-25 Thread Enrico Daga
The Linked Open Data endpoint of The Open University is built on top of Jena Fuseki. http://data.open.ac.uk/ Best, Enrico -- Enrico Daga Project Officer - Linked Data KMi - Knowledge Media Institute The Open University email: enrico.d...@open.ac.uk skype: enri-pan On 25 November 2014 at

Re: Jena / Stanbol success stories?

2014-11-25 Thread Milorad Tosic
Our Semantic Linked Data management platform www.tasorone.com uses Jena's ARQ and offers Jena TDB based implementation as a default triplestore.   Regards,Milorad From: Phillip Rhodes motley.crue@gmail.com To: users@jena.apache.org; d...@stanbol.apache.org Sent: Monday, November

Are there graph/table based tools for browsing/editing a large TDB store?

2014-11-25 Thread Deyan Chen
Hi all, I want a graph/table based tool to browse/edit an large ontology stored in a TDB store. Although Protege is a very good ontology editor, it needs a large amount of memory resources to open an large ontology file. And both desktop Protege and Web Protege cannot access TDB store. Any

Re: Are there graph/table based tools for browsing/editing a large TDB store?

2014-11-25 Thread Kamalraj Jairam
Hello Deyan, How big is the ontology? Do you want to prune ontology or edit the ontology by adding and deleting axioms? Thanks Kamalraj On 26 Nov 2014, at 12:26 pm, Deyan Chen chende...@neusoft.commailto:chende...@neusoft.com wrote: Hi all, I want a graph/table based tool to browse/edit

Re: Are there graph/table based tools for browsing/editing a large TDB store?

2014-11-25 Thread Deyan Chen
Hi kamalraj, Thank you for your reply. Now the size of my ontology is about 2GB. I mainly want to supply an ontology maintenance tool for business professionals so as to they can easily browse or edit the ontology data(especially instance data and their relationships). And I hope this tool

Query aborts with 502 behind reverse proxy

2014-11-25 Thread Neubert, Joachim
I use Fuseki behind a apache reverse proxy. A query which takes about 90 seconds when put directly to Jetty, aborts invariably after 60 seconds with an The proxy server received an invalid response from an upstream server. The proxy server could not handle the request message by apache. In the