Restoring a ReplicaExample Continued (2)

• Process could have been optimized to only require import from replica:north

• If process had been incorrectly limited to require only import from replica:south

• Then the next oplog-id from the restored replica (east) will be 651

• But replica:north already has an entry with oplog-id= 651

  • Replica:north will ignore it when importedsince 651 < 750, causing divergence

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