search

DDMAL / linkedmusic-datalake

To create mapping strategies for various music databases into our data lake
https://virtuoso.staging.simssa.ca
0 stars 4 forks source link

We haven't yet attempted to upload more than one RDF file of MusicBrainz using the BulkLoader feature of Virtuoso. #203

Closed candlecao closed 1 month ago

candlecao commented 1 month ago

Several groups of RDF data from MusicBrainz need to be uploaded to Virtuoso using the BulkLoader tool. We are proceeding with this task step by step. This follows #198.

candlecao commented 1 month ago

It's done. However, some weird issue occurred (which needs further investigation). Afaik, in order to avoid some possible "overlap", every time you upload a batch of RDF files, it's advisable to set up a new folder. For example, on my computer, the system files for Virtuoso are stored in a directory called "my_virtdb", under which I created a folder "tmp3" where multiple .ttl files and a global.graph file are located. I had executed ld_dir ('tmp3', '*.ttl', 'http://sample/musicbrainz/reconciled'); in SQL of Virtuoso in terminal. Then if you want to upload another around of files, preferably you set up another folder such as "tmp4" so as to avoid the overlap.