Hey,
I have some questions for our research of possible RDF Triple Stores
with fast graph traversal and fast (fulltext) search. As of now we are
using OpenRDFs Native and Memory Stores and OpenLink Virtuoso as our
RDF Triple Store.
How is the performance compared to OpenRDF Native and Memory Store
when using Tinkerpop Bluprints with there SAIL Ouplementation?
Area there any experience, any benchmarks?
We would also like to do have (fulltext) search in the graph data
built in. Is Neo4J the right store for that?
The beauty of the Sail Ouplementation model is that it is optimized for both
index-based queries (spgo) and traversal-based queries. If you look at the
technologies in OpenRDF, they are very index-based (SPARQL, getStatements(),
etc.). While, with Blueprints GraphSail, you can use this API (implements
Sail), you can also drop down into native Blueprints or Neo4j and thus, have
a quad-RDF graph represented as a linked list structure and thus, do fast
traversals. It is a bit of the best of both worlds in that sense...
In terms of performance benchmarks, we don't have any right now as GraphSail is
a recent addition to Blueprints and is still being heavily developed/optimized.
Also, I believe AllegroGraph has a disk/memory representation these days that
makes for fast traversals (used in their SNA package) so you might want to
check them out. Also, see StarDog which is a full Java-based RDF quadstore (
http://stardog.com/ ) which has Gremlin as their distributed path-based
language.
Finally, most RDF stores provide full text search. Moreover, Neo4j does as well.
See ya,
Marko.
http://markorodriguez.com
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