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Top 13 C++ Big Data Projects
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JetBrains
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NebulaGraph Database
A distributed, fast open-source graph database featuring horizontal scalability and high availability (by vesoft-inc)
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catboost
A fast, scalable, high performance Gradient Boosting on Decision Trees library, used for ranking, classification, regression and other machine learning tasks for Python, R, Java, C++. Supports computation on CPU and GPU.
Project mention: 🚀 Why Your ML Service Needs Rust + CatBoost: A Setup Guide That Actually Works | dev.to | 2025-01-19[package] name = "MLApp" version = "0.1.0" edition = "2021" [dependencies] catboost = { git = "https://github.com/catboost/catboost", rev = "0bfdc35"}
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GraphScope
🔨 🍇 💻 🚀 GraphScope: A One-Stop Large-Scale Graph Computing System from Alibaba | 一站式图计算系统
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ArcticDB
ArcticDB is a high performance, serverless DataFrame database built for the Python Data Science ecosystem.
ArcticDB: A high-performance, serverless database for Python. Visit Website
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InfluxDB
InfluxDB – Built for High-Performance Time Series Workloads. InfluxDB 3 OSS is now GA. Transform, enrich, and act on time series data directly in the database. Automate critical tasks and eliminate the need to move data externally. Download now.
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PGM-index
🏅State-of-the-art learned data structure that enables fast lookup, predecessor, range searches and updates in arrays of billions of items using orders of magnitude less space than traditional indexes
Project mention: PGM-index learned data structure with lookup, range, updates with OOM less space | news.ycombinator.com | 2025-07-22 -
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ustore
Multi-Modal Database replacing MongoDB, Neo4J, and Elastic with 1 faster ACID solution, with NetworkX and Pandas interfaces, and bindings for C 99, C++ 17, Python 3, Java, GoLang 🗄️
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NOTE:
The open source projects on this list are ordered by number of github stars.
The number of mentions indicates repo mentiontions in the last 12 Months or
since we started tracking (Dec 2020).
C++ Big Data discussion
C++ Big Data related posts
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ClickHouse raises $350M Series C
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Apache Iceberg
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ArcticDB: High performance, serverless DataFrame database
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ArcticDB: Why a Hedge Fund Built Its Own Database
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Garage: Open-Source Distributed Object Storage
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Fair Benchmarking Considered Difficult (2018) [pdf]
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Ask HN: Where to Store Logs?
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A note from our sponsor - JetBrains
surveys.jetbrains.com | 1 Sep 2025
Index
What are some of the best open-source Big Data projects in C++? This list will help you:
| # | Project | Stars |
|---|---|---|
| 1 | ClickHouse | 42,570 |
| 2 | NebulaGraph Database | 11,627 |
| 3 | catboost | 8,545 |
| 4 | GraphScope | 3,477 |
| 5 | ytsaurus | 2,072 |
| 6 | ArcticDB | 2,033 |
| 7 | kudu | 1,888 |
| 8 | MyScaleDB | 984 |
| 9 | PGM-index | 826 |
| 10 | oneDAL | 639 |
| 11 | ustore | 603 |
| 12 | incubator-graphar | 293 |
| 13 | nebula | 154 |
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