alibaba/yugong
alibaba/yugong has 2,516 GitHub stars and 942 forks. GitHot measured +1 stars in 24 hours. Last checked 2026-11-06 21:33 UTC. Last push 2023-03-06.
阿里巴巴去Oracle数据迁移同步工具(全量+增量,目标支持MySQL/DRDS)
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README.md
Original背景
2008年,阿里巴巴开始尝试使用 MySQL 支撑其业务,开发了围绕 MySQL 相关的中间件和工具,Cobar/TDDL(目前为阿里云DRDS产品),解决了单机 Oracle 无法满足的扩展性问题,当时也掀起一股去IOE项目的浪潮,愚公这项目因此而诞生,其要解决的目标就是帮助用户完成从 Oracle 数据迁移到 MySQL 上,完成去 IOE 的重要一步工作。
项目介绍
名称: yugong
译意: 愚公移山
语言: 纯java开发
定位: 数据库迁移 (目前主要支持oracle / mysql / DRDS)
项目介绍
整个数据迁移过程,分为两部分:
- 全量迁移
- 增量迁移

过程描述:
- 增量数据收集 (创建oracle表的增量物化视图)
- 进行全量复制
- 进行增量复制 (可并行进行数据校验)
- 原库停写,切到新库
架构
{width="584"
height="206"}
说明:
- 一个Jvm Container对应多个instance,每个instance对应于一张表的迁移任务
- instance分为三部分 a. extractor (从源数据库上提取数据,可分为全量/增量实现) b. translator (将源库上的数据按照目标库的需求进行自定义转化) c. applier (将数据更新到目标库,可分为全量/增量/对比的实现)
方案设计
快速开始
运维管理
性能报告
相关资料
- yugong简单介绍ppt: ppt
- 分布式关系型数据库服务DRDS (前身为阿里巴巴公司的Cobar/TDDL的演进版本, 基本原理为MySQL分库分表)
沟通与交流
- 详见 wiki home 页
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