SparkleDB

A distributed RDF triplestore written in C++ with full ACID compliance. Uses a master/slave architecture with transparent addition and removal of database nodes. Includes a built-in query optimizer and multi-threaded web server.

Overall rank: #94
First released: 2012
License: Proprietary

Details

Vendor: SysSurge
Type: RDF
Category: Emerging
Status: Inactive — No evidence of activity since approximately 2018. Website defunct.
License: Proprietary
Query Languages: SPARQL
Protocols: SPARQL Protocol

Sources 2 references

Protocols SPARQL Protocol

Vendor and site are defunct since ~2018; only evidence found is a mirrored, deleted Wikipedia article (thin, dated, unverifiable against a primary source). Disagrees with draft's Unknown.

any programming language or toolkit that can access a SPARQL protocol HTTP endpoint
SparkleDB | Deleted Wikipedia Article | Wikibin · reviewed 2026-08-02

Released 2012

Confirms current value under the renaming rule: the project was first publicly announced in February 2012 under its original name 'Meronymy', renamed to SparkleDB in 2013. Archived snapshots as late as May 2015 still describe it as an 'upcoming beta', so it is unclear the product ever reached full public availability beyond this early announcement.

Coming in June from start-up Meronymy is a new RDF enterprise database management system, the Meronymy SPARQL Database Server.
Meronymy « Another Word For It · reviewed 2026-08-02