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21 stars written in Java
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The official home of the Presto distributed SQL query engine for big data

Java 16,594 5,510 Updated Dec 17, 2025

The Metadata Platform for your Data and AI Stack

Java 11,326 3,308 Updated Dec 18, 2025

Apache Iceberg

Java 8,339 2,921 Updated Dec 17, 2025

Apache Pinot - A realtime distributed OLAP datastore

Java 5,989 1,434 Updated Dec 18, 2025

Web UI for PrestoDB.

Java 2,752 452 Updated May 20, 2021

Distributed Big Data Orchestration Service

Java 1,758 372 Updated Dec 17, 2025

Fast scalable time series database

Java 1,752 344 Updated Dec 2, 2025

Stream Processing and Complex Event Processing Engine

Java 1,570 530 Updated Aug 8, 2025

Dremio - the missing link in modern data

Java 1,453 455 Updated Sep 26, 2025

Mondrian is an Online Analytical Processing (OLAP) server that enables business users to analyze large quantities of data in real-time.

Java 1,164 735 Updated Dec 18, 2025

Kylo is a data lake management software platform and framework for enabling scalable enterprise-class data lakes on big data technologies such as Teradata, Apache Spark and/or Hadoop. Kylo is licen…

Java 1,114 566 Updated Jan 12, 2023

An open source framework for building data analytic applications.

Java 783 350 Updated Dec 18, 2025

Dashboard for visualizing Spring Boot microservices and the components they link to.

Java 409 68 Updated Mar 26, 2019

A graph-focused data visualisation and interactive analysis application.

Java 405 60 Updated Dec 18, 2025

Azure Event Hubs for Apache Kafka Ecosystems

Java 239 213 Updated Jul 8, 2024

Apache Flink example CEP program to monitor data center temperatures

Java 129 62 Updated Oct 28, 2018

Kafka sink for Kusto

Java 51 24 Updated Oct 13, 2025

Cloud-based SQL engine using SPARK where data is accessible as JDBC/ODBC data source via Spark ThriftServer.

Java 31 14 Updated Jul 12, 2017

Atoti AutoPivot automatically creates in-memory OLAP cubes from CSV files, that you can explore from Excel, Tableau or using the embedded Atoti UI web frontend

Java 31 9 Updated Nov 21, 2025

DEBS 2015 - Realtime Analytics Patterns with WSO2 CEP, Siddhi & Apache Storm

Java 16 13 Updated Nov 4, 2022

A Presto to MapD connector, enabling MapD queries via Presto

Java 5 3 Updated Jan 27, 2018