CodisLabs / CodisLabs/codis

codis3.X相较于codis2.0如何回滚数据迁移的操作

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Description

codis2.0的触发数据迁移后发生异常回滚困难,那codis3.X触发数据迁移后而由此导致的集群不可用情况下如何快速撤销或者回滚(因为最近会发起一次3.X版本的扩容,且由于之前2.0扩容过程中出现proxy频繁掉线数据迁移不可逆的情况)?另外3.X版本中说明proxy不强依赖zk,是指proxy不依赖zk的watch事件而依赖缓存的cache信息(zk中的元信息更像是bakcup)么?

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