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MongoDB通过心跳来同步节点间信息,最终将复制集达到统一的状态,但怎样保证整个过程的正确性?
能否具体一点,不太确定你问的是什么。
MongoDB通过oplog同步信息,oplog具有幂等性(多次应用同一条oplog会得到同样的结果)。幂等性可以保证同步的正确性。
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