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  1. Core Server
  2. SERVER-63725

If user write blocking is enabled, FCV downgrade to a version that does not support it should fail

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    • Type: Icon: Task Task
    • Resolution: Fixed
    • Priority: Icon: Major - P3 Major - P3
    • 6.0.0-rc0
    • Affects Version/s: None
    • Component/s: None
    • Labels:
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    • Fully Compatible
    • Security 2022-04-04, Security 2022-04-18

      Make FCV dowgrade fail to a version that doesn't support user write blocking under any of the following scenarios:

      (a) User writes are currently blocked

      (b) A SetUserWriteBlockModeCoordinator is running (applies to the configsvr exclusively)

      For replicaSets (which don't use SetUserWriteBlockModeCoordinator ), proper synchronization must be ensured between check (a) and the setUserWriteBlock command.

            Assignee:
            spencer.jackson@mongodb.com Spencer Jackson
            Reporter:
            jordi.serra-torrens@mongodb.com Jordi Serra Torrens
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              Created:
              Updated:
              Resolved: