On 27/12/12 18:42, Abhishek Shivkumar wrote:
Hi,
I am trying to load a large (55 GB!) rdf file into JENA TDB for sparql
querying later. Here is a snapshot of the file at the end of this email:
When I am using TDBLoader from command line using the following command:
*c:\JENA\apache-jena-2.7.4\apache-jena-2.7.4\bat>tdbloader.bat -loc test
"C:\freebase-rdf-2012-12-09-00-00"*
The TDB loader has no clue, via file extension, as to the syntax. The
default is n-quads/n-triples.
But it's turtle, hence a syntax error.
So either:
1/ Run "riotcmd.turtle FILE > data.nt"
This is preferred because:
A/ It check the file is valid before loading.
B/ The NT loads faster.
2/ Rename the file to "something.ttl"
Andy
I get this error:
*23:40:30 INFO loader :: -- Start triples data phase*
*23:40:30 INFO loader :: ** Load empty triples table*
*23:40:30 INFO loader :: -- Start quads data phase*
*23:40:30 INFO loader :: ** Load empty quads table*
*23:40:30 INFO loader :: Load: C:\Users\IBM_ADMIN\My
Documents\dow*
*n\freebase-rdf-2012-12-09-00-00\freebase-rdf-2012-12-09-00-00 --
2012/12/27 23:4*
*0:30 IST*
*23:40:30 ERROR riot :: [line: 1, col: 1 ] Expected BNode
or IRI:*
* Got: [DIRECTIVE:prefix]*
*Exception in thread "main" org.openjena.riot.RiotException: [line: 1, col:
1 ] E*
*xpected BNode or IRI: Got: [DIRECTIVE:prefix]*
* at
org.openjena.riot.ErrorHandlerFactory$ErrorHandlerStd.fatal(ErrorHand*
*lerFactory.java:130)*
* at
org.openjena.riot.lang.LangEngine.raiseException(LangEngine.java:169)*
*
*
* at
org.openjena.riot.lang.LangEngine.exceptionDirect(LangEngine.java:162*
*)*
* at org.openjena.riot.lang.LangEngine.exception(LangEngine.java:155)
*
* at
org.openjena.riot.lang.LangNTuple.checkIRIOrBNode(LangNTuple.java:107*
*)*
* at org.openjena.riot.lang.LangNQuads.parseOne(LangNQuads.java:84)*
* at org.openjena.riot.lang.LangNQuads.parseOne(LangNQuads.java:34)*
* at org.openjena.riot.lang.LangNTuple.runParser(LangNTuple.java:69)*
* at org.openjena.riot.lang.LangBase.parse(LangBase.java:43)*
* at org.openjena.riot.RiotReader.parseQuads(RiotReader.java:134)*
* at org.openjena.riot.RiotReader.parseQuads(RiotReader.java:121)*
* at org.openjena.riot.RiotReader.parseQuads(RiotReader.java:107)*
* at
com.hp.hpl.jena.tdb.store.bulkloader.BulkLoader.loadQuads$(BulkLoader*
*.java:160)*
* at
com.hp.hpl.jena.tdb.store.bulkloader.BulkLoader.loadDataset(BulkLoade*
*r.java:121)*
* at com.hp.hpl.jena.tdb.TDBLoader.loadDataset$(TDBLoader.java:283)*
* at com.hp.hpl.jena.tdb.TDBLoader.loadDataset(TDBLoader.java:196)*
* at com.hp.hpl.jena.tdb.TDBLoader.load(TDBLoader.java:75)*
* at tdb.tdbloader.loadQuads(tdbloader.java:163)*
* at tdb.tdbloader.exec(tdbloader.java:122)*
* at arq.cmdline.CmdMain.mainMethod(CmdMain.java:101)*
* at arq.cmdline.CmdMain.mainRun(CmdMain.java:63)*
* at arq.cmdline.CmdMain.mainRun(CmdMain.java:50)*
* at tdb.tdbloader.main(tdbloader.java:53)*
I need help in understanding this error and how to solve it. Is there a
problem with the input file?
@prefix ns: <http://rdf.freebase.com/ns/>.
@prefix key: <http://rdf.freebase.com/key/>.
@prefix owl: <http://www.w3.org/2002/07/owl#>.
@prefix rdfs: <http://www.w3.org/2000/01/rdf-schema#>.
@prefix xsd: <http://www.w3.org/2001/XMLSchema#>.
ns:m.012rkqx ns:type.object.type ns:common.topic.
ns:m.012rkqx ns:type.object.name "High Fidelity"@en.
ns:m.012rkqx ns:type.object.type ns:music.single.
ns:m.012rkqx ns:type.object.key
ns:authority.musicbrainz.name.TRACK3987054.
ns:m.012rkqx ns:type.object.type ns:music.recording.
ns:m.012rkqx key:authority.musicbrainz
"258c45bd-4437-4580-8988-b3f3be975f9c".
ns:m.012rkqx key:authority.musicbrainz.name "TRACK3987054".
ns:m.012rkqx rdf:label "High Fidelity"@en.
ns:m.012rkqx rdf:type ns:common.topic.
ns:m.012rkqx rdf:type ns:music.single.
ns:m.012rkqx rdf:type ns:music.recording.
