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25–48 of 248 · Most stars

Official repository of Trino, the distributed SQL query engine for big data, formerly known as PrestoSQL (https://trino.io)

The world's fastest open query engine for sub-second analytics both on and off the data lakehouse. With the flexibility to support nearly any scenario, StarRocks provides best-in-class performance for multi-dimensional analytics, real-time analytics, and ad-hoc queries. A Linux Foundation project.

A configuration as code language with rich validation and tooling.

  • pkl
  • java
  • kotlin
  • config

Activiti is a light-weight workflow and Business Process Management (BPM) Platform targeted at business people, developers and system admins. Its core is a super-fast and rock-solid BPMN 2 process engine for Java. It's open-source and distributed under the Apache license. Activiti runs in any Java application, on a server, on a cluster or in the cloud. It integrates perfectly with Spring, it is extremely lightweight and based on simple concepts.

Open source transactional distributed database. Linear scalability and proven fault-tolerance on commodity hardware or cloud infrastructure without compromising performance.

SeaTunnel is a multimodal, high-performance, distributed, massive data integration tool.

  • data-integration
  • high-performance
  • offline
  • real-time

Distributed and fault-tolerant realtime computation: stream processing, continuous computation, distributed RPC, and more

(Deprecated) A custom view component that mimics the new Material Design Bottom Navigation pattern.

  • android
  • material-design
  • bottom-navigation
  • library

📌 a missing Java std lib(simple & 0-dependency) for framework/middleware, provide an enhanced InheritableThreadLocal that transmits values between threads even using thread pooling components.

  • java
  • threadlocal
  • threadsafe
  • transmittable

1️⃣🐝🏎️ The One Billion Row Challenge -- A fun exploration of how quickly 1B rows from a text file can be aggregated with Java

  • 1brc
  • challenges

Open source GPS tracking platform - self-hosted or managed, 200+ device protocols

  • gps
  • java
  • traccar
  • gps-tracking