TDB2 databases for LargeRDFBench

This contains TDB2 (the triple store from Apache Jena, version 3.17.0) directories (archived as .tar.zst files) for each of the LargeRDFBench datasets. In order for Jena to accept the data, it had to be cleaned, amending IRIs to make them valid (as per RFC 3987) and replacing _ in lang tags with - (e.g., en_US was changed to en-US).

The input for creating these archives was the .nt.zst files from https://doi.org/10.5281/zenodo.5008280, version 1.0.0.

To bring up a SPARQL endpoint for dataset X at http://localhost:3030/X/sparql, follow the following steps:

Download X.tdb.tar.zst

Run tar --zstd -xf X.tdb.tar.zst

The zstd package may need to be installed

On older versions of tar, --zstd is not avaialble and -I zstd should be used instead.

Run fuseki-server --tdb2 --loc X.tdb --port 3030 /X

Download Apache Fuseki binaries from here

Replace fuseki-server with the full path, unless it was added to your $PATH

Or use a docker container: docker run -it --rm -v $(pwd)/X.tdb:/data -p 3030:3030 alexishuf/fuseki:3.17.0 --tdb2 --loc=/data --port 3030 /X