Well, I could not solve the problem with apache-jena-fuseki-2.4.0 but apache-jena-fuseki-2.3.1 worked without problem.
Do you want me to describe the whole process I did so you could possiby stacktrace the problem? Filip 2016-09-14 12:11 GMT+02:00 Andy Seaborne <a...@apache.org>: > Hi Filip, > > > Error 500: Invalid id node for object (null node): > > ([0000000000003C3C], [000000000007AA], [0000000000003D18]) > > This is usually a sign that the program exits without sync'ing a > non-transaction TDB database. > > It is possible (probably) that building the inference model in the > assembler is not transactional. It becomes transactional on first request. > > So has at any time in the past, not the run which caused the 500, have you > exited the server during start up (e.g. control-C) or before the first > request to the inference model? or another program access the same > database? > > The other possible cause is two systems trying to modify the same database > at the same time. TDB tries to trap this and warn you but the test is not > perfect. (It looks like you are on Linux so the test is much better there > - on Windows, it has been reported that Windows update can cause restarts > where the process id is reused quiet quickly.) > > Could you please crosslink the stack overflow question to this thread? > Thanks. > > Andy > > > > On 13/09/16 12:32, Filip Masri wrote: > >> Dear Jena Community, >> >> I have a following fuseki dataset configuration: >> >> @prefix fuseki: <http://jena.apache.org/fuseki#> . >> @prefix rdf: <http://www.w3.org/1999/02/22-rdf-syntax-ns#> . >> @prefix rdfs: <http://www.w3.org/2000/01/rdf-schema#> . >> @prefix tdb: <http://jena.hpl.hp.com/2008/tdb#> . >> @prefix ja: <http://jena.hpl.hp.com/2005/11/Assembler#> . >> @prefix sdb: <http://jena.hpl.hp.com/2007/sdb#> . >> >> >> [] a fuseki:Server ; >> fuseki:services ( <#tdb> ) . >> >> >> <#tdb> rdf:type fuseki:Service ; >> fuseki:name "ds" ; # http://host/inf >> fuseki:serviceQuery "query" , "sparql" ; >> fuseki:serviceUpdate "update" ; >> fuseki:dataset <#dataset2> ; #select which set to use >> rdfs:label "TDB ds" ; >> fuseki:serviceReadGraphStore "get" ; >> fuseki:serviceReadWriteGraphStore >> "data" ; >> fuseki:serviceUpload "upload" . >> >> [] ja:loadClass "com.hp.hpl.jena.tdb.TDB" . >> tdb:DatasetTDB rdfs:subClassOf ja:RDFDataset . >> tdb:GraphTDB rdfs:subClassOf ja:Model . >> >> <#dataset2> rdf:type ja:RDFDataset ; >> ja:defaultGraph <#model2> . >> >> <#model2> a ja:InfModel; >> ja:baseModel <#tdbGraph>; >> ja:reasoner >> [ ja:reasonerURL <http://jena.hpl.hp.com/2003/OWLFBRuleReasoner> ] . >> >> <#tdbGraph> rdf:type tdb:GraphTDB; >> tdb:dataset <#tdbDataset> . >> >> <#tdbDataset> rdf:type tdb:DatasetTDB ; >> tdb:location "...apache-jena-fuseki-2.4.0/run/databases/ds" . >> >> >> Then I start the server as ./fuseki-server --config=ds.ttl. The reasoner >> is >> working. I upload my basic schema saying that SmartPhone is a subClassOf >> MobilePhone etc...Then I post data about smartphones through the REST API. >> Everything is working. Now I restart the server. >> >> And when quering my data i get >> >> Error 500: Invalid id node for object (null node): ([0000000000003C3C], >> [000000000007AA], [0000000000003D18]) >> >> Does you know how to configure it correctly? Is it possible? >> >> Thanks :) >> >>
