On 11/08/2021 19:07, Brandon Sara wrote:
What properties are transitive?
Right now, it is just an ontology…so, everything is properties and classes. So,
subClassOf and subPropertyOf exist on nearly every subject node.
10s of millions triples of RDFS schema and no instance data?
Example query?
PREFIX : <urn:blah/>
PREFIX custom: <http://example.com/>
SELECT *
WHERE {
:42 custom:id ?id
}
(`:42` has only one `custom:id` triple and has no `owl:sameAs` inference…only
“TransitiveReasoner” is being used)
custom:id has super properties?
And is the request causing the database to be sync'ed before the request
starts?
On Aug 11, 2021, at 8:29 AM, Andy Seaborne
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On 11/08/2021 01:17, Brandon Sara wrote:
Can I get some recommendations on how to best tweak/setup memory for my fuseki
servers? Here is my setup:
- I’ve got a single TDB with at least several million triples (I don’t know the
exact amount yet, but perhaps around 10s of millions, maybe 100s of millions…a
the very least, I need it to scale to 100s of millions).
- Everything is put in the default graph currently (wanting to change this…but
can’t the this point in time).
- The “TransitiveReasoner” is being used on the dataset.
What properties are transitive?
(and maybe
https://jena.apache.org/documentation/rdfs/?<https://jena.apache.org/documentation/rdfs/?>)
- Full text indexing over two different fields is enabled using Lucene.
- The servers are running embedded Fuseki via rdf-delta and sync via a central
rdf-delta server.
- The simplest of queries won’t finish and runs out of memory with, at the very
least, 6 GB of RAM.
Example query?
And is the request causing the database to be sync'ed before the request
starts?
Also, should I be tweaking my non-heap memory to be larger for the Fuseki
server?
Unlikely.
Andy
Thanks.
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