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介绍

精卫是一个基于MySQL数据库的数据复制组件,基于最最原始的生产者-消费者模型,引入Pipeline(负责数据传送)、Extractor(生产数据)、Applier(消费数据)的概念,构建一套高易用性的数据复制框架。 目前支持源MYSQL,ORACLE,HBASE的数据复制和分发。

功能

  • DB到DB复制(支持规则)

  • DB数据变化通知(改前数据改后数据)

  • DB数据变化一对多订阅(需与METAQ配合)

常用场景

1.多维度复制,如交易买家维度和卖家维度复制。

2.数据变化通知,如VSEARCH利用数据变化通知构建异步索引。

3.一次DUMP多次订阅,如商品数据变化通知服务于DETAIL 静态化,P4P商品管理,商品标签平台等。

安全保证

  • 任务无状态化,配置ZK管理,任何任务故障都会尝试切换到其他机器上。

  • DUMP的数据库自动切换,结合JADE与DBA管里的数据库切换同步,保证数据的安全性不丢失。

  • 完善的监控报警机制,任务堆积,故障都有监控保证及时通过手机和旺旺通知到负责人。

  • 高效的调度DUMP机制,保证延迟最小(毫秒级别)

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