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replication data consistency verify tool #304

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qinzuoyan opened this issue Mar 12, 2019 · 0 comments
Open

replication data consistency verify tool #304

qinzuoyan opened this issue Mar 12, 2019 · 0 comments
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component/duplication cluster duplication type/enhancement Indicates new feature requests

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@qinzuoyan
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功能：对建立了replication关系的两个表进行数据验证，保证数据的一致性

使用场景：对于建立了replication关系的两个表，可以定期（譬如一周）在低峰时段进行数据一致性验证

注意点：

  • 要考虑异步复制的延迟，譬如可以考虑获取数据的timestamp，对最近1小时写入的数据不进行比较；
  • 可以考虑分布式并发执行，每个并发只比较一个partition，提升速度；
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@qinzuoyan @neverchanje