OpenRDF Usage in Blazegraph

Blazegraph (no longer maintained and unofficially superseded by Amazon Neptune) uses OpenRDF under the hood (rather than the renamed version RDF4J).

This can be found by forcing an exception in the Blazegraph workbench:

org.openrdf.rio.RDFParseException

By typing in some bad syntax into the Update window. Typing "hello world" will do nicely.

Is Blazegraph now Amazon Neptune?

Blazegraph is an open source graph database written in Java. It has been abandoned since 2020 and is used in production by the Wikidata Query Service. It is licensed under GPL version 2.0. 

 

Amazon Neptune is Amazon's high performance graph database available through AWS. As Amazon acquired Blazegraph developers, it is possible Neptune is the new, maintained incarnation of Blazegraph.