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Apache Spark - A unified analytics engine for large-scale data processing

Scala 42,537 28,986 Updated Dec 25, 2025

A distributed, fast open-source graph database featuring horizontal scalability and high availability. This is an archived repo for v2.5 only, from 2.6.0 +, NebulaGraph switched back to https://git…

C++ 848 132 Updated Aug 17, 2022

A Flexible, Fast, Federated(3F) SQL Analysis Middleware for Multiple Data Sources

Java 2,061 578 Updated Oct 25, 2022

Test code for apache calcite

Java 214 163 Updated Sep 16, 2022

Apache Flink

Java 25,635 13,805 Updated Dec 25, 2025

HugeGraph Database core component, including graph engine, API, and built-in backends

Java 1 Updated Jun 21, 2019

Apache ECharts is a powerful, interactive charting and data visualization library for browser

TypeScript 65,294 19,819 Updated Dec 22, 2025

Apache Kylin

Java 3,762 1,521 Updated Dec 2, 2025