Atomix - Scalable, fault-tolerant distributed systems protocols and primitives for the JVM

•    Java

Atomix is an event-driven framework for coordinating fault-tolerant distributed systems built on the Raft consensus algorithm. It provides the building blocks that solve many common distributed systems problems including group membership, leader election, distributed concurrency control, partitioning, and replication.

tikv - Distributed transactional key value database powered by Rust and Raft

•    Rust

Geo-Replication TiKV uses Raft and Placement Driver to support Geo-Replication.Horizontal scalability With Placement Driver and carefully designed Raft groups, TiKV excels in horizontal scalability and can easily scale to 100+ TBs of data.

rqlite - The lightweight, distributed relational database built on SQLite.

•    Go

rqlite is a distributed relational database, which uses SQLite as its storage engine. rqlite uses Raft to achieve consensus across all the instances of the SQLite databases, ensuring that every change made to the system is made to a quorum of SQLite databases, or none at all. It also gracefully handles leader elections, and tolerates failures of machines, including the leader. rqlite is available for Linux, OSX, and Microsoft Windows.rqlite gives you the functionality of a rock solid, fault-tolerant, replicated relational database, but with very easy installation, deployment, and operation. With it you've got a lightweight and reliable distributed relational data store. Think etcd or Consul, but with relational data modelling also available.

translations - 🐼 Chinese translations for classic IT resources

一些不错英文资料的中文翻译。 Chinese translations for classic IT resources.

awesome-distributed-systems - A curated list to learn about distributed systems

A (hopefully) curated list on awesome material on distributed systems, inspired by other awesome frameworks like awesome-python. Most links will tend to be readings on architecture itself rather than code itself. Read things here before you start.

fabric - Read-only mirror of https://gerrit.hyperledger.org/r/#/admin/projects/fabric

•    Go

This project is an Active Hyperledger project. For more information on the history of this project see the Fabric wiki page. Information on what Active entails can be found in the Hyperledger Project Lifecycle document. Hyperledger Fabric is a platform for distributed ledger solutions, underpinned by a modular architecture delivering high degrees of confidentiality, resiliency, flexibility and scalability. It is designed to support pluggable implementations of different components, and accommodate the complexity and intricacies that exist across the economic ecosystem.

quorum - A permissioned implementation of Ethereum supporting data privacy

•    Go

Quorum is an Ethereum-based distributed ledger protocol with transaction/contract privacy and new consensus mechanisms. Quorum is a fork of go-ethereum and is updated in line with go-ethereum releases.

etcd - Distributed reliable key-value store for the most critical data of a distributed system

•    Go

Note: The master branch may be in an unstable or even broken state during development. Please use releases instead of the master branch in order to get stable binaries. etcd is written in Go and uses the Raft consensus algorithm to manage a highly-available replicated log.

dragonboat - A feature complete and high performance multi-group Raft library in Go.

•    Go

Dragonboat is a high performance multi-group Raft consensus library in Go with C++11 binding support. Consensus algorithms such as Raft provides fault-tolerance by alllowing a system continue to operate as long as the majority member servers are available. For example, a Raft cluster of 5 servers can make progress even if 2 servers fail. It also appears to clients as a single node with strong data consistency always provided. All running servers can be used to initiate read requests for aggregated read throughput.

raft - Golang implementation of the Raft consensus protocol

•    Go

raft is a Go library that manages a replicated log and can be used with an FSM to manage replicated state machines. It is a library for providing consensus.The use cases for such a library are far-reaching as replicated state machines are a key component of many distributed systems. They enable building Consistent, Partition Tolerant (CP) systems, with limited fault tolerance as well.

tikv - Distributed transactional key-value database, originally created to complement TiDB

•    Rust

TiKV is an open-source, distributed, and transactional key-value database. Unlike other traditional NoSQL systems, TiKV not only provides classical key-value APIs, but also transactional APIs with ACID compliance. Built in Rust and powered by Raft, TiKV was originally created to complement TiDB, a distributed HTAP database compatible with the MySQL protocol. The design of TiKV ('Ti' stands for titanium) is inspired by some great distributed systems from Google, such as BigTable, Spanner, and Percolator, and some of the latest achievements in academia in recent years, such as the Raft consensus algorithm.

Tendermint - Tendermint Core (BFT Consensus) in Go

•    Go

Tendermint Core is Byzantine Fault Tolerant (BFT) middleware that takes a state transition machine - written in any programming language - and securely replicates it on many machines.

burrow - Hyperledger Burrow

•    Go

Hyperledger Burrow is a permissioned Ethereum smart-contract blockchain node. It executes Ethereum EVM smart contract code (usually written in Solidity) on a permissioned virtual machine. Burrow provides transaction finality and high transaction throughput on a proof-of-stake Tendermint consensus engine. Project information generally updated on a quarterly basis can be found on the Hyperledger Burrow Wiki.

hraftd - A reference use of Hashicorp's Raft implementation

•    Go

For background on this project check out this blog post. hraftd is a reference example use of the Hashicorp Raft implementation v1.0. Raft is a distributed consensus protocol, meaning its purpose is to ensure that a set of nodes -- a cluster -- agree on the state of some arbitrary state machine, even when nodes are vulnerable to failure and network partitions. Distributed consensus is a fundamental concept when it comes to building fault-tolerant systems.

paxosstore - PaxosStore has been deployed in WeChat production for more than two years, providing storage services for the core businesses of WeChat backend

•    C++

PaxosStore is a distributed-database initially inspired by Google MegaStore. It's the second generation of storage system developed to support current WeChat sevice and applications. PaxosStore has been deployed in WeChat production for more than two years, providing storage services for the core businesses of WeChat backend including user account management, user relationship management (i.e., contacts), instant messaging, social networking (i.e., Moments), and online payment (i.e., WeChat Pay). Now PaxosStore is running on thousands of machines, and is able to afford billions of peak TPS.

cita - A fast and scalable blockchain for enterprise users.

•    Rust

CITA is a fast and scalable blockchain for enterprises. CITA supports both native contract and EVM contract, by which enterprise users can build their own blockchain applications. CITA has a unique architecture which enables enterprise users to release all their computing resources. Customizable and Pluggable Components: CITA's microservices are loosely coupled and their communications are only via the message queue. Hence, it‘s flexible to improve current components with better algorithms (such as new consensus algorithms) or more appropriate technical solutions (such as new DBs or new privacy solutions). Moreover, business logic is extremely complicated in enterprise applications. With CITA, you can easily customize your blockchain with the certain feature to fit your own business requirements.

Copycat - A novel implementation of the Raft consensus algorithm

•    Java

Copycat is a fault-tolerant state machine replication framework. Built on the Raft consensus algorithm, it handles replication and persistence and enforces strict ordering of inputs and outputs, allowing developers to focus on single-threaded application logic. Its event-driven model allows for efficient client communication with replicated state machines, from simple key-value stores to wait-free locks and leader elections. You supply the state machine and Copycat takes care of the rest, making it easy to build robust, safe distributed systems.

ethermint - Ethereum on Tendermint!

•    Go

WARNING: Ethermint is under VERY ACTIVE DEVELOPMENT and should be treated as pre-alpha software. This means it is not meant to be run in production, its APIs are subject to change without warning and should not be relied upon, and it should not be used to hold any value. We will remove this warning when we have a release that is stable, secure, and properly tested. By default, state will be dumped into $HOME/.ethermint. See --help for further usage.

awesome-cryptoeconomics - An awesome curated list of Cryptoeconomic research and learning materials

Please check the contribution guidelines for info on formatting and writing pull requests. To the extent possible under law, Joaquim Pedro Antunes has waived all copyright and related or neighbouring rights to this work.

CovenantSQL - a SQL database with Blockchain features.

•    Go

CovenantSQL is still under construction and Testnet is already released, have a try.