Sempala
SPARQL processor
A system that provides fast and interactive SPARQL query processing on top of Hadoop using a columnar layout and a SQL layer.
Sempala is a SPARQL-over-SQL approach to provide interactive-time SPARQL query processing on Hadoop. It stores RDF data in a columnar layout (Parquet) on HDFS and uses either Impala or Spark as the execution layer on top of it. SPARQL queries are translated into Impala/Spark SQL for execution.
12 stars
4 watching
2 forks
Language: Java
last commit: about 7 years ago
Linked from 1 awesome list
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