Merck/Halyard

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Halyard is an extremely horizontally scalable Triplestore with support for Named Graphs, designed for integration of extremely large Semantic Data Models, and for storage and SPARQL 1.1 querying of the whole Linked Data universe snapshots.

Stars: 114
Forks: 18
Open beginner issues: 0
Indexed issues: 21

Dominant language: Java
License: Apache-2.0
Last GitHub push: Dec 5, 2019
Latest indexed: Sep 19, 2026
Contributing guide: No contributing guide
Code of conduct: No code of conduct
Beginner labels: No beginner labels indexed
PR merge metrics: No merged PRs in 30d

Beginner friendly Everything

Open All

21 open issues indexed

Dead project? Time to archive? Open

Difficulty 5/5 Over a week Newbie friendliness 10/100

Merck/Halyard#79 · Opened Aug 26, 2021
Halyard + Rdf4j high availability function documents. Open

Difficulty 5/5 Over a week Newbie friendliness 15/100

Merck/Halyard#78 · Opened Feb 1, 2021
Push Evaluation Strategy performance issue Open

Difficulty 4/5 3-5 days Newbie friendliness 25/100

Merck/Halyard#76 · 1 comment · Opened Jul 18, 2020
Deadlock possible in query evaluation Open

Difficulty 4/5 3-5 days Newbie friendliness 35/100

Merck/Halyard#75 · Opened Jan 3, 2020
SPARQL: Variables from outside group are visible inside group Open

bug

Difficulty 4/5 3-5 days Newbie friendliness 30/100

Merck/Halyard#74 · Opened Dec 3, 2019
Poor performance of nested OPTIONALs Open

bug

Merck/Halyard#72 · 1 comment · 1 assignee · Opened Sep 5, 2019
Integrate Halyard with SANSA Stack Open

enhancement opportunity

Difficulty 5/5 Over a week Newbie friendliness 20/100

Merck/Halyard#71 · 3 comments · 1 reaction · Opened Aug 7, 2019
Improve SPARQL query optimization by using selectivity Open

enhancement

Difficulty 5/5 Over a week Newbie friendliness 25/100

Merck/Halyard#70 · Opened Aug 7, 2019
Implement date time arithmetic Open

Difficulty 5/5 Over a week Newbie friendliness 25/100

Merck/Halyard#68 · 1 comment · Opened Jun 27, 2019
HBase version querying Open

enhancement

Difficulty 5/5 Over a week Newbie friendliness 30/100

Merck/Halyard#47 · 10 comments · Opened Aug 22, 2018
Make Halyard vocabulary machine-readable Open

enhancement

Difficulty 4/5 3-5 days Newbie friendliness 35/100

Merck/Halyard#36 · Opened Oct 26, 2017
Halyard logo Open

enhancement

Difficulty 5/5 Over a week Newbie friendliness 15/100

Merck/Halyard#34 · Opened Oct 26, 2017
Halyard benchmarking -- how to improve? Open

Difficulty 5/5 Over a week Newbie friendliness 25/100

Merck/Halyard#32 · 5 comments · 1 reaction · Opened Oct 23, 2017
Availability of LUBM test results Open

enhancement

Difficulty 4/5 3-5 days Newbie friendliness 25/100

Merck/Halyard#31 · 1 reaction · Opened Oct 23, 2017
Resume bulkload on abort? Open

enhancement

Difficulty 4/5 3-5 days Newbie friendliness 35/100

Merck/Halyard#27 · 1 comment · Opened Oct 1, 2017
Handle HBase exceptions for basic repository operations correctly Open

enhancement

Difficulty 4/5 3-5 days Newbie friendliness 35/100

Merck/Halyard#15 · Opened Mar 22, 2017
Improve HalyardTupleExprEvaluation.evaluateBindingSetAssignment Open

enhancement

Difficulty 5/5 Over a week Newbie friendliness 25/100

Merck/Halyard#13 · Opened Mar 14, 2017
Improve HalyardTupleExprEvaluation.evaluateArbitraryLengthPath Open

enhancement

Difficulty 5/5 Over a week Newbie friendliness 30/100

Merck/Halyard#12 · Opened Mar 14, 2017
Improve HalyardTupleExprEvaluation.evaluateZeroLengthPath Open

enhancement

Difficulty 4/5 3-5 days Newbie friendliness 35/100

Merck/Halyard#11 · Opened Mar 14, 2017
Improve HalyardTupleExprEvaluation.evaluateGroup Open

enhancement

Difficulty 5/5 Over a week Newbie friendliness 25/100

Merck/Halyard#10 · Opened Mar 14, 2017
Improve HalyardTupleExprEvaluation.evaluateDescribeOperator Open

enhancement

Difficulty 5/5 Over a week Newbie friendliness 25/100

Merck/Halyard#9 · Opened Mar 14, 2017

Merck/Halyard

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