Andy Seaborne created JENA-624:
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Summary: Develop a new in-memory RDF Dataset implementation
Key: JENA-624
URL: https://issues.apache.org/jira/browse/JENA-624
Project: Apache Jena
Issue Type: Improvement
Reporter: Andy Seaborne
The current (Jan 2014) Jena in-memory dataset uses a general purpose container
that works for any storage technology for graphs together with in-memory
graphs.
This project would develop a new implementation design specifically for RDF
datasets (triples and quads) and efficient SPARQL execution, for example, using
multi-core parallel operations and/or multi-version concurrent datastructures
to maximise true parallel operation.
This is a system project suitable for someone interested in datatbase
implementation, datastructure design and implementation, operating systems or
distributed systems.
Note that TDB can operate in-memory using a simulated disk with
copy-in/copy-out semantics for disk-level operations. It is for faithful
testing TDB infrastructure and is not designed performance, general in-memory
use or use at scale. While lesson may be learnt from that system, TDB
in-memory is not the answer here.
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