Marmotta
- Mark Breedlove (Unlicensed)
- Mark Matienzo (Unlicensed)
- Tom Johnson (Unlicensed)
Owned by Mark Breedlove (Unlicensed)
DPLA uses the Linked Data Platform (LDP) standard to manage harvested content and metadata. Our LDP server and RDF repository runs on Apache Marmotta, backed by a PostgreSQL database. Broadly, we handle two kinds of resources through LDP: DPLA MAP records (as LDP RDF Sources with type ORE::Aggregation), and binary "Original Records" (as LDP non-RDF Sources).
- Creating a differently-ordered index on `triples`
- Generic Query Plans in PSQL 9.1
- Various PostgreSQL changes (not covered elsewhere herein)
- LDP Interactions Overview
- Amazon EC2 adjustments
- Addressing slow updates and inserts
- Why table partitioning will not be beneficial
- Using irqbalance and SMP IRQ affinity
- Index performance with high context counts
See also KriKri RDF Database Review