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成员变更与配置变更 about dledger HOT 3 OPEN

akkw avatar akkw commented on June 9, 2024 2
成员变更与配置变更

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TheR1sing3un avatar TheR1sing3un commented on June 9, 2024

如果是joint consensus成员变更,是不是以Learner角色加入这一步可以省略,在append Cold-new这条日志的时候,要成功append的话,会把之前的日志都同步过去。

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akkw avatar akkw commented on June 9, 2024

如果是联合共识成员变多,是不是以学习者角色加入这一步可以省略,在append Cold-new这条日志的时候,要成功append的话,会把之前的日志都同步过去。

如果省去learner这一步,在2个节点的场景下节点加入集群后需要将之前的日志都同步到新节点中,会存在短暂的可用性问题,如果,如果强制要求只有learner才能加入到集群中的话,就可以解决这个问题了

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supervate avatar supervate commented on June 9, 2024

感觉使用单节点添加的变更算法就足够了,联合共识算法似乎过于复杂,而且一个raft集群组往往也不会有太多节点。

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