Details
- Vendor
- Apache Software Foundation
- Type
- RDF
- Category
- Emerging
- Status
- Inactive — No development activity since December 2020.
- License
- Apache-2.0
- Language
- Java
- Query Languages
- SPARQL
- Protocols
- HTTP/REST
Apache Rya
An RDF triple store built on Apache Accumulo for scalable storage and retrieval of RDF data in cloud environments. Uses column-oriented storage with three index tables for subject, predicate, and object lookups.
- Overall rank
- #75
- First released
- October 2016
- License
- Apache-2.0
- Built with
- Java
Details
Sources 5 references
Protocols HTTP/REST
Rya's web.rya WAR exposes ad-hoc /loadrdf and /queryrdf endpoints (plus a sparqlQuery.jsp form) that run SPARQL, but an open Rya ticket (RYA-477) proposes adding a standards-conformant /sparql endpoint and SPARQL Service Description, implying the current endpoint is not a conformant W3C SPARQL 1.1 Protocol implementation; dropped the draft's SPARQL Protocol tag for this reason.
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The War sets up a Web REST endpoint at `http://server/web.rya/queryrdf` that allows GET requests with queries.
README.md · reviewed 2026-08-02
License Apache-2.0
SPDX identifier as classified by GitHub from the repository licence file.
-
"spdx_id": "Apache-2.0"
GitHub licence API — apache/rya · reviewed 2026-08-02
Released 2016-10
Confirms the current value. Rya was built starting in 2010 but was restricted to mostly US-government users until it entered the Apache Incubator; its first public Apache release was version 3.2.10 on 2016-10-28.
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2016-10-28 First Apache Incubator Release for Rya (version 3.2.10).
Rya Incubation Status - Apache Incubator · reviewed 2026-08-02 -
From its inception, the project operated with an Apache-style license, but it was open to mostly US government-related projects only.
RyaProposal - INCUBATOR - Apache Software Foundation · reviewed 2026-08-02
Language Java
Confirms the current value; GitHub reports Java as the repository's primary language, matching the README's Java/Maven build instructions.
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"watchers_count": 115, "language": "Java", "has_issues": false,
apache/rya (GitHub API repository object) · reviewed 2026-08-02