Awesome GitHub RepositoriesDistributed Databases

TiDB is a horizontally scalable, distributed SQL database designed to provide consistent transactional storage and high-performance analytical processing within a single unified architecture. It utilizes a decoupled compute-storage design and a distributed key-value storage layer to ensure horizontal scalability and efficient range-based queries. By employing a consensus-based replication algorithm, the system maintains high availability and automatic failover across multiple nodes and geographical regions. The platform distinguishes itself through its hybrid transactional and analytical proc

SurrealDB is a multi-model database engine designed to store and query document, graph, relational, and vector data within a single ACID-compliant platform. It functions as an AI-native data store, integrating vector search, graph traversal, and machine learning model execution directly into its query layer. By providing a unified declarative query language, the platform eliminates the need for external middleware to synchronize data across different storage models. The platform distinguishes itself through its ability to manage agent memory and complex workflows natively. It allows developer

This project is a distributed, document-oriented database system designed to store information in flexible, hierarchical structures. It supports horizontal scaling through automated sharding and maintains high availability across global clusters using a multi-node replication protocol. By executing multi-document operations as atomic units, the system ensures data integrity and consistency across distributed environments. The platform distinguishes itself by integrating advanced vector-based indexing, which enables semantic similarity searches alongside traditional geospatial and lexical quer

Valkey is an in-memory, NoSQL database server designed for high-performance data storage and real-time state management. It operates as a distributed key-value store, maintaining datasets entirely within system memory to facilitate sub-millisecond response times for read and write operations. The system distinguishes itself through a single-threaded event loop that utilizes asynchronous I/O multiplexing to ensure high throughput. It supports high availability via master-replica replication and provides a decoupled communication model through a built-in publish-subscribe messaging pattern. To

TDengine is a distributed time-series database designed for the high-speed ingestion, compression, and retrieval of timestamped metrics and sensor data. It functions as a SQL-compatible analytics engine, allowing users to perform complex operations on massive volumes of time-ordered information using standard relational syntax. The platform is built to serve as a backend foundation for industrial IoT environments, managing real-time data streams and device metadata through a cluster-based architecture. The system distinguishes itself through a distributed sharding architecture that uses consi

Dolt is a relational database engine that integrates version control directly into the database management layer. It functions as a version-controlled SQL database that tracks every row and schema change using a commit-based history, allowing users to branch, merge, and audit data modifications. By implementing a wire-protocol-compatible server, the system enables standard SQL clients and tools to interact with versioned data as if they were connecting to a traditional relational database. The platform distinguishes itself by applying repository-style workflows to data management, including s

Dgraph is a distributed graph database designed to store and query highly connected data. It organizes information as nodes and edges to represent complex relationships between entities, providing a platform for managing and analyzing deeply linked datasets. The system functions as a horizontally scalable cluster that partitions data across multiple nodes to maintain performance and availability as information volume increases. It utilizes a specialized query language built for low-latency navigation of interconnected data points, allowing for the execution of complex queries across large-sca

This project is a pure JavaScript database driver for Node.js that implements the native MySQL binary protocol. It serves as a comprehensive connector for managing persistent network links to MySQL servers, enabling applications to execute queries, manage transactions, and handle complex data operations without requiring external middleware. The driver distinguishes itself through its integrated support for connection pooling and distributed database routing. It maintains managed sets of reusable network sockets to optimize resource usage under high request volumes, while simultaneously provi

LibSQL is a high-performance, distributed SQL database engine that extends SQLite to support remote network access, edge computing, and real-time synchronization. It functions as an embedded database library that integrates directly into application processes while providing the infrastructure to maintain consistency across multiple geographic regions. The platform distinguishes itself by enabling database interaction over standard HTTP protocols, allowing applications to query remote data sources in serverless and edge environments without requiring local filesystem access. It includes nativ

ScyllaDB is a distributed NoSQL database engine designed for high-throughput data storage and low-latency performance at scale. It functions as a shard-aware platform that manages large-scale datasets across distributed clusters, providing a foundation for real-time applications that require consistent availability and operational stability. The system distinguishes itself through a shared-nothing architecture that distributes data across independent CPU cores to eliminate lock contention. It incorporates a user-space networking stack and an asynchronous event-driven engine to maximize hardwa

Citus is a PostgreSQL extension that transforms a standard database into a distributed system. It functions as a sharding framework and distributed SQL engine, enabling horizontal scaling by partitioning tables across a cluster of nodes. By utilizing a coordinator-worker topology, the system manages metadata and routes queries to the appropriate nodes, allowing for parallel execution of complex operations across distributed data shards. The platform distinguishes itself through its specialized support for multi-tenant architectures and real-time analytical processing. It enables tenant-based

Talent Plan bietet geführte Trainingsprogramme und Lehrpläne, die sich auf das Design verteilter Datenbanken, Systemprogrammierung und Open-Source-Beitragsworkflows konzentrieren. Das Projekt bietet ein Ausbildungsprogramm für verteilte Systeme, das aus kuratierten Kursen und Labs besteht, die sich auf Datenbank-Interna konzentrieren. Der Lehrplan betont die Verwendung der Sprache Rust für den Aufbau hochperformanter vernetzter Anwendungen und die Implementierung verteilter Algorithmen. Er integriert Lehrmaterialien zu Versionskontrolle, Community-Governance und den spezifischen Prozessen, die für Beiträge zu öffentlichen Softwareprojekten erforderlich sind. Das Projekt deckt breite technische und organisatorische Bereiche ab, einschließlich Engineering verteilter Datenbanken, Open-Source-Community-Management und Koordination technischer Mentorenschaften. Es beinhaltet praktische Anwendungen durch die Konstruktion fehlertoleranter Key-Value-Stores und das Studium professioneller Architekturen verteilter Datenbanken. Zusätzliche Materialien decken Open-Source-Grundlagen ab, einschließlich Projekt-Governance, Software-Lizenzierung und die Nutzung kollaborativer Plattformen wie Git und GitHub.

Cassandra is a distributed NoSQL database and wide-column store designed for high availability and linear scalability. It functions as a fault-tolerant distributed system that utilizes an LSM-tree storage engine to optimize write throughput and manage massive datasets. The system is a CQL-compliant database, using a structured query language to manage and retrieve tabular data stored across multiple nodes. It organizes information into rows and columns based on a flexible schema and primary keys. The project provides capabilities for horizontal database scaling, distributed data partitioning

Orbit DB is a decentralized NoSQL database that utilizes conflict-free replicated data types to ensure eventual consistency across a network of nodes. It functions as a peer-to-peer data store that uses IPFS for content-addressing and synchronization, allowing for the maintenance of application state without a central server or authority. The system is built upon a cryptographically verifiable, immutable operation log, which serves as the foundation for custom decentralized data models. This architecture enables the implementation of various data storage patterns, including JSON document stor

OrbitDB is a decentralized data storage system that enables the creation of serverless databases residing across a network of peers. It functions as a peer-to-peer database that integrates with a content-addressed storage layer to distribute and replicate data without a central server. The system utilizes conflict-free replicated data types to ensure eventual consistency and state convergence across distributed nodes. It maintains an immutable record of updates using a directed acyclic graph to preserve causal ordering and cryptographic integrity. Access is managed through a decentralized ide

Iroh is a peer-to-peer networking stack and distributed system designed for secure direct connections, content-addressed storage, and synchronized data sharing. It provides a foundation for decentralized applications by combining a QUIC-based networking layer with primitives for distributed state and data transfer. The project distinguishes itself through a comprehensive suite of decentralized capabilities, including a distributed data store using conflict-free replicated data types for collaborative synchronization and a content-addressed storage system for verifiable, resumable transfers of

pgloader is a command-line tool that automates the migration of data and schema from various source databases and file formats into PostgreSQL. It combines schema discovery, parallel data pipelines, and type casting into a single, declarative workflow, using PostgreSQL's COPY protocol for high-throughput bulk loading. The tool distinguishes itself by compiling a dedicated command language into concurrent reader-writer pipelines that handle schema introspection, data transformation, and error-resilient batch processing. It supports migrating entire databases from MySQL, MS SQL, SQLite, and Pos

LiteFS ist ein FUSE-basiertes verteiltes Dateisystem, das für die Replikation von SQLite-Datenbanken über einen Cluster von Maschinen hinweg entwickelt wurde. Es fungiert als Hochverfügbarkeitsschicht, die Daten durch das Abfangen von Schreiboperationen synchronisiert, um Konsistenz über mehrere Serverknoten hinweg zu gewährleisten. Das System verwaltet verteilte Datenbankspeicherung durch das Mapping von Dateioperationen auf Netzwerkanfragen mittels eines User-Space-Treibers. Dies ermöglicht eine regionsübergreifende Datensynchronisation und die Verteilung von Datenbankinhalten auf Edge-Knoten, was lokale Lesezugriffe bei synchronisierten globalen Schreibvorgängen erleichtert. Der Replikationsprozess nutzt Write-Ahead-Log-Shipping und transaktionsbewusstes Abfangen, um übermittelte Änderungen von einem Primärknoten an Standby-Replikate zu streamen. Neue Replikate werden durch Snapshot-basierte Initialisierung gebootstrapt, bevor sie zur inkrementellen Log-Replikation übergehen.

TablePro is a cross-platform database management client designed for browsing, querying, and administering both SQL and NoSQL databases. It functions as a unified workspace that integrates a code-centric SQL editor with schema visualization tools, allowing developers to manage complex data models and execute queries across diverse database engines. The application distinguishes itself through an agentic AI integration layer that connects language models directly to database tools, enabling automated query generation, optimization, and error fixing with configurable approval gates. It features

Synapse ist eine Matrix-Homeserver-Implementierung, die die Infrastruktur für dezentrale Echtzeitkommunikation und Messaging bereitstellt. Es fungiert als föderierter Chat-Server, der Raumdaten und Event-Streams über unabhängige Serverinstanzen hinweg synchronisiert, um domänenübergreifende Interoperabilität zu ermöglichen. Der Server nutzt einen Hybrid-Kern, der leistungskritische Logik in Rust mit einer Python-Orchestrierungsschicht integriert. Er verwendet eine relationale PostgreSQL-Datenbank zur Speicherung von Benutzerkonten und Gesprächsverläufen und nutzt ein Redis-basiertes Messaging-System, um Aufgaben auf horizontale Worker zu verteilen. Das Projekt deckt ein breites Spektrum an Funktionen ab, einschließlich sicherer Identitätsverwaltung mit SAML- und OpenID-Connect-Integration, umfassender administrativer Tools für Inhaltsmoderation und Raumverwaltung sowie automatisierter Medienverarbeitung. Es enthält zudem Systeme für dezentrale Föderation, asynchrone Datenbank-Schema-Migration und Telemetrie-Export für Leistungsüberwachung.