Hi I am evaluating Apache Jena for SPARQL query execution. My question is about the ability of this engine to achieve parallelism for a distributed RDF store.
Consider a SPARQL query that requires level order traversal on a graph. A serial execution of the query to get friends of friends, will sequentially fetch friends for each friend of given person. Since the store is distributed, this query can be easily palatalized to get friends for each successive friend in parallel. This can be quite good improvement. However, this does require support for asynchronous graph operations , both in the engine and at the graph layer. So is this possible or it is possible to do it in some way ? Anand
