On 08/05/12 11:39, Claude Warren wrote:
I found this issue over the weekend as well, however I also found that if
you shut down the server correctly it work fine. That is, the issue will
arise in a server crash but not an orderly shutdown. I think I was using
the latest release, not SNAPSHOT.
That's possible - when there is a pile of graphs (inference on
TDB-backed graph) then the transaction mechanism isn't used and it has
to revert to using sync(). And sync() has had to change so that is a
likely area for a bug to explain teh behaviour you are seeing.
Claude - what is your setup?
The cleaned up one from Jose is:
@prefix tdb:<http://jena.hpl.hp.com/2008/tdb#> .
@prefix rdf:<http://www.w3.org/1999/02/22-rdf-syntax-ns#> .
@prefix rdfs:<http://www.w3.org/2000/01/rdf-schema#> .
@prefix ja:<http://jena.hpl.hp.com/2005/11/Assembler#> .
@prefix tdb:<http://jena.hpl.hp.com/2008/tdb#> .
[] ja:loadClass "com.hp.hpl.jena.tdb.TDB" .
tdb:DatasetTDB rdfs:subClassOf ja:RDFDataset .
tdb:GraphTDB rdfs:subClassOf ja:Model .
<#dataset> rdf:type ja:RDFDataset ;
ja:defaultGraph<#infModel> .
<#infModel> a ja:InfModel ;
ja:baseModel<#tdbGraph>;
ja:reasoner
[ja:reasonerURL
<http://jena.hpl.hp.com/2003/RDFSExptRuleReasoner>].
<#tdbGraph> rdf:type tdb:GraphTDB ;
tdb:location "DB" ;
.
Note there is a command line porgramme riotcmd.infer that expands RDFS
data against a schema, removing the need to use inference at query time.
It does just subClass, subProperty, range and domain.
Andy
On Sun, May 6, 2012 at 5:08 PM, Jose Emilio Labra<jela...@yahoo.es> wrote:
I was trying with jena-fuseki-0.2.1-incubating.
However, I have just downloaded and tried
with jena-fuseki-0.2.2-incubating-SNAPSHOT and it is the same.
It is strange, because it is able to insert new triples and it seems to
work fine, but once I restart the server, it raises that exception...
Best regards, Jose Labra
----- Mensaje original -----
De: Andy Seaborne<a...@apache.org>
Para: jena-us...@incubator.apache.org
CC:
Enviado: Domingo 6 de Mayo de 2012 15:36
Asunto: Re: Can I configure Jena Fuseki with inference and TDB?
On 06/05/12 13:53, Jose Emilio Labra wrote:
I want to configure Fuseki with an inference model supported by TDB.
I have been able to configure it with a Memory Model, but not with a TDB
Model where I could update triples.
I am using the following assembler description:
@prefix tdb:<http://jena.hpl.hp.com/2008/tdb#> .
@prefix rdf:<http://www.w3.org/1999/02/22-rdf-syntax-ns#> .
@prefix rdfs:<http://www.w3.org/2000/01/rdf-schema#> .
@prefix ja:<http://jena.hpl.hp.com/2005/11/Assembler#> .
@prefix tdb:<http://jena.hpl.hp.com/2008/tdb#> . [] ja:loadClass
"com.hp.hpl.jena.tdb.TDB" .
tdb:DatasetTDB rdfs:subClassOf ja:RDFDataset .
tdb:GraphTDB rdfs:subClassOf ja:Model .<#dataset> rdf:type
ja:RDFDataset ; ja:defaultGraph<#infModel> .<#infModel> a ja:InfModel ;
ja:baseModel<#tdbGraph>; ja:reasoner [ja:reasonerURL<
http://jena.hpl.hp.com/2003/RDFSExptRuleReasoner>].<#tdbGraph> rdf:type
tdb:GraphTDB ; tdb:location "DB" ;
@prefix tdb:<http://jena.hpl.hp.com/2008/tdb#> .
@prefix rdf:<http://www.w3.org/1999/02/22-rdf-syntax-ns#> .
@prefix rdfs:<http://www.w3.org/2000/01/rdf-schema#> .
@prefix ja:<http://jena.hpl.hp.com/2005/11/Assembler#> .
@prefix tdb:<http://jena.hpl.hp.com/2008/tdb#> .
[] ja:loadClass "com.hp.hpl.jena.tdb.TDB" .
tdb:DatasetTDB rdfs:subClassOf ja:RDFDataset .
tdb:GraphTDB rdfs:subClassOf ja:Model .
<#dataset> rdf:type ja:RDFDataset ;
ja:defaultGraph<#infModel> .
<#infModel> a ja:InfModel ;
ja:baseModel<#tdbGraph>;
ja:reasoner
[ja:reasonerURL
<http://jena.hpl.hp.com/2003/RDFSExptRuleReasoner>].
<#tdbGraph> rdf:type tdb:GraphTDB ;
tdb:location "DB" ;
.
.
It works fine and it is able to do RDFS inference and even to insert new
triples. However, once I stop and restart the server, it raises the
following exception:
Error 500: Invalid id node for subject (null node): ([000000000000001D],
[00000000000000AF], [000000000000003D])
After that, I can do a "CLEAR ALL" and insert triples again...however,
once I restart the server, I obtain the same exception...
Best regards, Jose Labra
Which version of TDB?
Do try the development snapshot:
https://repository.apache.org/content/repositories/snapshots/org/apache/jena/jena-fuseki/0.2.2-incubating-SNAPSHOT/
Andy
