With named graph in config: 1. FROM <> doesn't work resp. doesn't terminate
2. Using GRAPH keyword works: SELECT ?s WHERE { GRAPH <http://example.org/wikidata> {?s a <http://wikiba.se/ontology-beta#Item> } } LIMIT 10 OFFSET 20000000 > Thanks Lorenz for your test. I'd like to know much RAM you had available for > this test. Fuseki+HDT has always been fast for me as well, except this query. > I have 8GB. I used 16G but could go up to ~512G in worst case On 16.12.2017 16:36, Laura Morales wrote: > Thanks Lorenz for your test. I'd like to know much RAM you had available for > this test. Fuseki+HDT has always been fast for me as well, except this query. > I have 8GB. > > What I did was *almost* exactly what you did. > >> * Have you ever tried to use CURL instead of the GUI? > Yes, only I used a POST instead of a GET > >> * Have you tried any other query in the GUI with any other small HDT > dataset? It might also be some issue within the GUI + HDT > > Yes, I've used other datasets before. BTW other queries on Wikidata return > quickly, except this one. > >> * Do you use the built-in Fuseki of the HDT package which in fact is Fuseki1? > I use Fuseki 3.5.0 (standalone server, no service) > > Basically I did what you did, with one difference: I didn't setup the HDT as > ja:defaultGraph, but as ja:namedGraph. This seems to make all the difference > in the world! In fact, I've tried to replicate your test, thus using > ja:defaultGraph, and it seems to works as expected (it returned quickly)!!! > If I setup a ja:namedGraph instead, my computer explodes! Can you re-try with > a named graph? The query is the same, except that you add "FROM > <http://example.org/wikidata>". Other than this, the only difference is that > you probably have more RAM than me.