“…The disadvantage is that usually no compute node knows how many compute nodes exist and how the data is distributed among all compute nodes. Usually in systems like Edutella [37,97], RDFPeers [25], PAGE [35], GridVine [6,31], RDFCube [87], Atlas [67], 3RDF [12], [13] and [101], a distributed index is used that routes requests to the compute node storing the requested data. Since this distributed index is the central component of the architecture, the implementation choice of the index determines how the triples of the RDF graph are assigned to the compute nodes.…”