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日志共识点后退的问题 #318

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leehom opened this issue Jul 8, 2024 · 0 comments
Open

日志共识点后退的问题 #318

leehom opened this issue Jul 8, 2024 · 0 comments

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@leehom
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leehom commented Jul 8, 2024 •
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最近分析dledger，上图2处
计算committedIndex，请求携带的共识点，即集群的共识点，自身写入最后index，取较少的, 但memberState.followerUpdateCommittedIndex，计算committedIndex小于现有的committedIndex是不会更新，保留现有的。
下图比对2.4处， “term不一样，返回本节点term的第一个写入的index”, 回退到上一个term，可能大量的消息截取，出现共识点回退
! 是否存在本节点的committedIndex大于写入存储的index?
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@leehom