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  1. Core Server
  2. SERVER-50922

Add 'preparing-to-mirror' state to donor state machine

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    • Fully Compatible
    • Sharding 2020-11-02

    Description

      Add a new state to resharding coordinator state machines and state machines 'preparing-to-mirror'.

      Context: Donors should enter this state upon seeing the coordinator enter 'mirroring', write the final oplog entry indicating that 'all writes must be run in distributed transactions', and then transition to 'mirroring' themselves after.

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            vishnu.kaushik@mongodb.com Vishnu Kaushik
            janna.golden@mongodb.com Janna Golden
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