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Replica Sets Limits

A set can contain A maximum of 12 members A maximum of 7 members that can vote Typically the set configuration can be changed only when a majority can be established. Limits on config changes to sets at first. Especially when a lot of set members are down. v1.6 Authentication is supported only in v1.8+. Map/reduce writes new collections to the server.  Because of this, for now it may only be used on the primary.  This will be enhanced later.

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• Added by Dwight Merriman, last edited by Dwight Merriman on Sep 20, 2011  (view change)

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