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  1. Core Server
  2. SERVER-6953

Allow switching from unauthenticated to authenticated setup (and vice versa) without downtime.

    • Type: Icon: Improvement Improvement
    • Resolution: Duplicate
    • Priority: Icon: Major - P3 Major - P3
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    • Affects Version/s: None
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      Since it's currently not possible to run in a mixed deployment with some replica set members having auth and some not, to enable auth for a set for the first time requires taking some downtime.

      We could get around this by having a compatibility mode that authenticates all outgoing connections using the keyfile, but doesn't enforce any authentication rules on incoming requests. Then you could have a no-downtime switch by doing two rolling restarts of the set - one to provide the keyfile but start in compatibility mode, and another to remove compatibility mode and go into full authenticated mode proper.

            Unassigned Unassigned
            spencer@mongodb.com Spencer Brody (Inactive)
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