Mongo Replica：是否可以添加一个对选举和可用性没有任何影响的成员？
我有一个包含 3 个成员的副本集，如果 3 个成员中的 1 个出现故障，该副本集将继续运行。现在，我需要向副本添加另一个辅助成员，我希望该成员在所有方面对于副本来说都是可选的。我很好奇priority: 0 + votes: 0 是否能解决问题。
该新的副本成员可能会相当有可能且频繁地宕机，我想以一种方式配置它，仍然允许其他 1 个成员宕机（除了新成员之外）并仍然保持副本集正常工作（即， 4 名成员中有 2 名，但 3 票中有 2 名）。换句话说，我不希望新成员对副本集可用性产生负面影响。
是否可以？
先感谢您！
I have a replica set with 3 members that will continue functioning if 1 of 3 goes down. Now, I need to add another secondary member to a replica, which I want to be optional to the replica in all regards. I'm curious if priority: 0 + votes: 0 will do the trick or not.
That new replica member can go down fairly likely and frequently, and I want to configure it in a way, that will still allow 1 other member to go down (in addition to a new one) and still keep the replica set working (i.e., with 2 out of 4 members, but with 2 out of 3 votes). In other words, I don't want the new member to negatively affect the replica set availability.
Is it possible?
Thank you in advance!
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将成员设置为 votes=0、priority=0、hidden=true，您可以随时停止/启动，而无需复制集或应用程序来理解...
Set the member to votes=0,priority=0,hidden=true and you can stop/start any time without replicaSet or applications to understand ...