I load a large rdf dataset into virtuoso, it used about 5GB disk space shown in virtuoso.db, and then I use the isql command:
SQL> SPARQL CLEAR GRAPH <graph-name>;
after remove all triples , the file virtuodo.db is still hold on 5GB disk space?
how can I get back my disk space?
asked 11 Nov '12, 13:01
The Virtuoso Server will not release pre-allocated block thus the database will not reduce in size. The only way to recover is to probably dump and restore the database, essentially building a new database.
The Virtuoso vacuum function can be used compact tables and index and improve performance but it will not reclaim disk space, see:
answered 11 Nov '12, 21:06