On 3/12/13 6:53 PM, Barry Norton wrote:
In fact thanks for the push, Kingsley. That does 'just work' using the standards HTTP and SPARQL Graph Store Protocol:$ curl -iX POST -H "Content-Type:text/turtle" -H "Content-Encoding: gzip" -T DBpediaArtists.nt.gz localhost:8080/repositories/musicbrainz/rdf-graphs/service?graph=http://dbpedia.org
Yes.Thus, we just add this to the list of approaches available to those undertaking certain types of data loading tasks :-)
Kingsley
Cheers, Barry On 12/03/13 22:33, Barry Norton wrote:On 12/03/13 21:49, Kingsley Idehen wrote:On 3/12/13 4:53 PM, Barry Norton wrote:Such questions really belong on the Virtuoso list, but don't most triplestores support the SPARQL Graph Store Protocol by now?Yes, but when you've got a massive collection of RDF files you still need to bulk load from a local directory etc..As below.Most of my (bash) load scripts look like this:for file in *; do curl -H "Content-Type:text/turtle" -T $file your-server/your-database/rdf-graphs/service?graph=your-graph; doneYes for small files, no for a massive collection of files or a few very large files :-)I presume your objection is (small files) the set-up/shutdown overheard, and (for large files) that these are not necessarily passed in compressed form? Or have you other objections?I've always meant to look into 'Content-Encoding: gzip', but I've always been happy to walk over an uncompressed split of NTriples/NQuads due to a combination of: the relative time of transfer relative to canonicalisation and indexing; the desire to split very large files (e.g. Freebase) to localise errors.BarryOn 12/03/13 20:36, Kalpa Gunaratna wrote:actually I tried that (I used the procedure to load DBpedia dump 3.8 which was in gz format as I remember.)But when I try to load now a dump of DBLP which has .rdf files as the dump when I uncompress it, I do not know how to load the files. Following is what I get running bulk load procedure.SQL> ld_dir(‘/home/kalpa/Virtuoso/data/datasets/DBLP-RKB/models’, ‘*.*’, ‘http://dblp-rkb.org’);Connected to OpenLink Virtuoso Driver: 06.01.3127 OpenLink Virtuoso ODBC Driver*** Error 37000: [Virtuoso Driver][Virtuoso Server]SQ074: Line 1: syntax error at '.' before '*'at line 1 of Top-Level:ld_dir(‘/home/kalpa/Virtuoso/data/datasets/DBLP-RKB/models’, ‘*.*’, ‘http://dblp-rkb.org’)On Tue, Mar 12, 2013 at 8:27 PM, Francisco Cifuentes <[email protected] <mailto:[email protected]>> wrote:Take a look here: http://www.openlinksw.com/dataspace/doc/dav/wiki/Main/VirtBulkRDFLoader Regards Francisco. 2013/3/12 Kalpa Gunaratna <[email protected] <mailto:[email protected]>> Hi, I have an rdf dump that has data in the form of .rdf files. I want to load them into a local Virtuoso server so that I can query them using the local sparql endpoint. But I see that it is possible to load one RDF/XML file at a time using the command "DB.DBA.RDF_LOAD_RDFXML_MT". Since the dump has many files, executing this command many times is not going to work. What are the other alternatives I have in loading them to the server? Thank you in advance for any help! Regards Kalpa Gunaratna-- Francisco Cifuentes-Silva------------------------------------ WESO Research Group Facultad de Ciencias Universidad de Oviedo Tel: +34 985103397 http://www.weso.es http://twitter.com/fcifuentes -- Regards Kalpa Gunaratna-- Regards, Kingsley Idehen Founder & CEO OpenLink Software Company Web:http://www.openlinksw.com Personal Weblog:http://www.openlinksw.com/blog/~kidehen Twitter/Identi.ca handle: @kidehen Google+ Profile:https://plus.google.com/112399767740508618350/about LinkedIn Profile:http://www.linkedin.com/in/kidehen
-- Regards, Kingsley Idehen Founder & CEO OpenLink Software Company Web: http://www.openlinksw.com Personal Weblog: http://www.openlinksw.com/blog/~kidehen Twitter/Identi.ca handle: @kidehen Google+ Profile: https://plus.google.com/112399767740508618350/about LinkedIn Profile: http://www.linkedin.com/in/kidehen
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