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是否应当采用初级数据? - MongoDB
原标题:Should rollback data be applied on primary? - MongoDB

假设我们有一套复制机,有3个 no(2数据和1个仲裁员)。

A->primary, priority=2
B->secondary, priority=1, 10 seconds behind A
C->arbiter

现在,A失败,B成为首要问题。 一段时间后,A进入网上,进行滚动,在进行合并后,它再次成为首要任务。 现在,我们可以采用有滚动支持的数据。

我的问题是,如果A优先事项是1,那么情况会发生。 在进入网上和进行滚动之后,它将与B合成。 现在,我们应当对哪一个服务器采用滚动辅助数据? 段 次 页 次 更不用说一句话。 我们是否应当将滚动辅助数据转让给B?

最佳回答

由于你只能写给小学,因此,滚动后退学数据应始终首先应用。 在你的案件中,这意味着你要么将数据移至服务器B,要么仅仅使用mongorestore,与新的主谈(同时谈——h的论点)。 mongorestore 效用很可能无法将数据应用于中学。

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