Consider preventing chunkMigrations during transitionary upgrading/downgrading phase

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    • Type: Task
    • Resolution: Duplicate
    • Priority: Major - P3
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      Similar to what resharding does: https://github.com/10gen/mongo/blob/3c97de457a0c4d011b8055185f2d2f372e43703b/src/mongo/db/s/config/configsvr_reshard_collection_cmd.cpp#L205

      We are about to make some protcol modification in moveChunk and we should try to simplify uprade/downgrade compatibility by disallowing new migrations during the transitionary fcv states.

            Assignee:
            Unassigned
            Reporter:
            Randolph Tan
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              Created:
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