Projects sharing features with Litefs

CloudNativePG is a Kubernetes operator designed for the administration, lifecycle management, and high availability of PostgreSQL database clusters. It functions as a declarative orchestrator that manages database instances through custom resources and manifests. The project distinguishes itself by automating complex operational tasks, including primary election and failover management via streaming physical replication. It provides specialized tools for database version migrations, supporting both offline in-place upgrades and online migrations through logical replication. The operator cove

Patroni is a high availability manager and cluster orchestrator for PostgreSQL. It functions as an automatic failover controller and replication manager that ensures continuous database availability by automating leader election and promoting standby nodes during failures. The system maintains a consistent cluster state by acting as a distributed consensus coordinator. It synchronizes configuration and manages leader elections through integration with distributed configuration stores such as etcd, ZooKeeper, or Consul. Its broader capabilities include managing both synchronous and asynchrono

Dokan is a user-mode file system library for Windows that allows applications to create custom file systems accessible as normal Windows volumes without writing kernel-mode device drivers. It provides a FUSE compatibility layer that maps FUSE operations to Dokan callbacks, enabling existing FUSE-based file systems to run natively on Windows by rebuilding the source code with Cygwin or MinGW. The library exposes its file system API through language-specific wrappers for C, .NET, Java, Delphi, Ruby, and Python, supporting cross-language file system development. It handles file operations throug

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

Riak is a decentralized NoSQL key-value store designed for high availability and fault tolerance. It is a Dynamo-style distributed database that utilizes consistent hashing and eventual consistency to scale data across a cluster of nodes. The system functions as a geo-replicated datastore, synchronizing data across multiple physical locations to provide disaster recovery and maintain availability during regional outages. It employs a multi-master replication model, allowing writes to any node in the cluster. The platform covers broad capability areas including decentralized cluster coordinat

macfuse is a framework for implementing custom file systems in user space. It utilizes a macOS kernel extension to bridge the operating system kernel's virtual file system layer to a user-process daemon. This project allows the implementation of file system logic outside of the kernel to improve system stability and simplify development. It enables the mapping of remote data, network resources, or memory to a local folder so they can be accessed through standard system interfaces. The framework supports the development of cross-platform storage by providing a portable interface for consisten

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

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

Pigsty is a full-stack orchestration suite for deploying, monitoring, and managing high-availability PostgreSQL clusters and their supporting infrastructure. It functions as a cluster management platform and high-availability suite that automates failover, manages virtual IPs, and ensures data consistency through distributed consensus. The project distinguishes itself by providing a comprehensive database infrastructure-as-code framework and a dedicated observability stack. It incorporates a backup and recovery manager supporting point-in-time recovery via S3-compatible object storage, alongs

This project is a Kubernetes operator designed for deploying and managing production PostgreSQL database clusters using declarative configurations. It functions as a controller that synchronizes the actual state of database clusters with a desired state, providing a system for high availability orchestration, automated backup and recovery, and containerized database administration. The operator distinguishes itself through a comprehensive data protection suite that supports point-in-time recovery, multi-mode backups to cloud object storage, and cluster cloning. It ensures continuous availabil

LXD is a unified platform for managing both system containers and virtual machines through a single REST API and command-line interface. It provides a programmatic HTTP interface for controlling the full lifecycle of instances, enabling automation and integration with external tools. The system runs unprivileged containers with per-instance UID/GID mappings, seccomp filters, and AppArmor profiles for kernel-level isolation, while supporting multiple storage backends including directory, Btrfs, LVM, ZFS, Ceph, LINSTOR, and TrueNAS through a unified driver interface. The platform distinguishes

ProxySQL is a database proxy designed to route and balance traffic between applications and MySQL or PostgreSQL servers. It provides database high availability by monitoring backend server health and automatically rerouting traffic to healthy nodes during failover events to prevent downtime. The system integrates with generative AI models by proxying requests through a protocol handler, creating a bridge that allows large language models to access structured data. The project includes capabilities for traffic management through automatic failover routing and cluster topology discovery. It op

This project is a PostgreSQL Kubernetes operator and database orchestrator designed to automate the deployment, scaling, and lifecycle management of high-availability database clusters. It functions as a controller that uses declarative manifests to provision and synchronize the state of database instances within a cluster. The system manages high availability through streaming replication and ensures constant availability during maintenance via rolling updates. It also serves as a backup and recovery manager, handling point-in-time recovery, logical backups, and cluster cloning using cloud 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

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

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

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

LedisDB is a distributed NoSQL key-value store built in Go. It functions as a high-performance database server that persists simple values, counters, and complex data structures using pluggable storage engines. The system implements the Redis protocol to maintain compatibility with existing client libraries and drivers, while also providing an HTTP interface that exposes database functions through JSON, BSON, or msgpack formats. It includes an embedded virtual machine to execute custom server-side Lua scripts for complex operations. The platform supports high availability through data replic

Pgcat is a PostgreSQL middleware solution providing connection pooling, sharding, load balancing, and failover management. It functions as a proxy that optimizes resource usage and scalability by managing database sessions and distributing queries across multiple instances. The system distinguishes itself through traffic mirroring, which duplicates live production queries to test databases for validation. It also implements a sharding proxy to distribute data and queries across multiple database instances based on sharding keys. The project covers high availability through automated failover

Atlas is a MySQL database proxy and middleware system designed to manage traffic between clients and database clusters. It functions as a high-availability database gateway and sharding middleware, providing a fault-tolerant entry point for routing, load balancing, and managing database connections. The project differentiates itself through a combination of read-write splitting, which directs queries to primary or replica servers, and data sharding to distribute information across multiple backend instances. It utilizes a connection pooler to reduce the overhead of establishing new sessions a

Autobase is a self-hosted database-as-a-service platform designed to automate the deployment, scaling, and administration of high-availability PostgreSQL clusters. It functions as a cluster orchestrator that handles replication, failover, and version upgrades across multiple servers. The platform is distinguished by its GitOps-driven approach, using version control and CI/CD pipelines as the single source of truth to automate database configurations and deployments. It provides both a web-based management interface and a command-line tool for provisioning and monitoring clusters. The system

immudb is a tamperproof database that maintains an immutable record of entries using cryptographic commit logging. It ensures verifiable database integrity by utilizing Merkle trees to generate membership and consistency proofs that detect unauthorized data alterations. The system employs a multi-model storage engine that unifies key-value, document, and relational data structures within a single immutable backend. It provides compatibility with the PostgreSQL wire protocol, allowing it to integrate with standard SQL clients, ORMs, and database tools. The project covers broad capabilities in

m3 is a distributed time series database designed for high-resolution metrics and high-cardinality data management. It functions as a scalable storage system and a multi-cluster query engine, providing a distributed metrics aggregator capable of downsampling and summarizing data before it is committed to storage. The project distinguishes itself through a coordinated cluster model using etcd for node membership and shard placement. It supports multiple ingestion protocols, including the Prometheus remote write protocol, InfluxDB line protocol, and Graphite Carbon plaintext protocol, and provi

The project is a Kubernetes operator that automates the deployment, configuration, and management of ClickHouse database clusters using native custom resources and declarative manifests. It functions as a distributed database controller and stateful workload manager, handling infrastructure provisioning and scaling routines across containerized environments. The operator provides comprehensive database lifecycle management capabilities, controlling operational states, safe software version upgrades, and dynamic cluster scaling while automatically propagating schema changes. It includes custom

Talent Plan provides guided training programs and curricula centered on distributed database design, systems programming, and open source contribution workflows. The project offers a distributed systems education program consisting of curated courses and labs focused on database internals. The curriculum emphasizes the use of the Rust language for building high-performance networked applications and implementing distributed algorithms. It integrates educational materials on version control, community governance, and the specific processes required to contribute to public software projects. T

RavenDB is a multi-model NoSQL document database designed for high-performance, ACID-compliant data storage. It persists structured information as schema-flexible JSON documents and utilizes a unit-of-work session pattern to track entity changes and batch modifications into atomic transactions. The platform is built on a distributed architecture that supports horizontal scaling through sharding and ensures high availability via multi-node, master-to-master cluster replication. The database distinguishes itself through a self-optimizing query engine that automatically creates and maintains ind

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