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项目已更名为OpenDDAL,代码库移至https://github.com/openddal/openddal

OpenDDAL概述

OpenDDAL致力于提供一个简单易用,高性能的分布式数据库访问服务,OpenDDAL内致的分布式SQL引擎能处理各种复杂的SQL,为之选择可靠的执行计划。OpenDDAL提供SQL语句执行计划查询,方便的理解SQL的路由及执行。有助于开发可靠的业务代码。除此之外,OpenDDAL提供了简洁高效的切分实现,数据库隔离及恢复,读写分离等功能。

OpenDDAL架构

OpenDDAL文档中心

OpenDDAL已实现的功能

  • 简洁高效的数据切分方式,支持分库分表,自定义切分规则
  • 基于JDBC,可适用于任何基于java的ORM框架
  • 能处理各件复杂的SQL,对用户的使用限止少,对上层开发透明
  • 实现基于成本的分布式SQL优化器,为SQL提供可靠的执行方式
  • 支持SQL语句执行计划查询,方便的理解SQL的路由及执行
  • 实现了基于MySQL数据库的Repository层
  • 读写分离支持,HA支持,问题数据库隔离和自动恢复

OpenDDAL需求规划

  • 基于netty,整合cobar server.实现基于MySQL协议的TCP Server,以获多语言,多客户端支持。
  • 实现更多的Repository层,如PgSQL,Oracle,DB2
  • 实现基于NoSQL的Repository层,如Mongodb,Hbase

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