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jdbc-shards's Introduction

项目已更名为OpenDDAL,代码库移至https://github.com/neradb/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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jdbc-shards's Issues

编译问题

导入项目后，
The type DispatcherDataSource must implement the inherited abstract method CommonDataSource.getParentLogger()
，很多 继承 javax.sql.* 的类 提示 没有实现的方法。

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