README.md

Tsurugi - next generation RDB for the new era

Tsurugi is an open-source relational database system designed for modern computer architectures that have hundreds of CPU cores and huge memory capacity. It focused for the following features:

1. Designed for a Many-Core/In-Memory Environment
2. Ensuring Consistency
3. Simultaneous Use of Multiple Interfaces
4. Component-Based Architecture
5. Excellence in Batch Processing and Long Transactions
6. Developed as Open Source

• More: about.md
• More : Detailed Information is offered in the Handbook (only in Japanese)
  • https://nkbp.jp/lin-tsurugi

Getting started

• Installation
  • Tsurugi Getting Started
    • Tsurugi Getting Started (ja)
• Use official Docker Image
  • Tsurugi Docker User Guide
    • Tsurugi Dockerユーザガイド (ja)

Documentation

• Runtime Environments
  • Supported Platforms
• Support SQL
  • Available SQL features in Tsurugi
• External Interfaces
  • External interfaces for Tsurugi
    • Tsurugiが提供する外部インターフェース群 (ja)
• Miscellaneous
  • You can find more documents in the docs directory.
  • The docs directory of the Sub projects contains detailed information for each component.

Limitations

This includes the below significant limitations as below:

• User control does not work, including authentications and authorizations.

Sub projects

Transaction engine

• shirakami

  Concurrency control system

• yakushima

  In-memory index

• limestone

  Data store for transaction logs

• sharksfin

  KVS adapter for transaction engine

SQL execution engine

• jogasaki

  SQL job scheduler and interpreter

• mizugaki

  SQL compiler front-end including SQL parser

• yugawara

  SQL semantic analyzer and optimizer

• takatori

  SQL intermediate representations and utilities

Database framework

• tateyama

  Database component framework including messaging service

• tateyama-bootstrap

  Database service bootstrap

Database clients

• tsubakuro

  Client library (Java)

• tanzawa

  SQL console (Java)

• ogawayama

  Communication library for PostgreSQL

Peripherals

• harinoki

  Tiny authentication service

Resources

• Tsurugi Community Site (ja)
• note (ja)

Contributing

• Please report any issues to repository for issue tracking

• For any other questions or feedback, please post to tsurugidb discussions forum

• This repository is a collection of submodules of each Sub Project. Therefore, please send Pull Reuqeset to the repository of Sub project, not to this repository.

License

• Apache License, Version 2.0