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  1. Core Server
  2. SERVER-38142

Transaction coordinator should send prepare, commit, and abort directly to its local TransactionParticipant rather than over the network, take 2

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    • Fully Compatible
    • Sharding 2018-12-31, Sharding 2019-01-14, Sharding 2019-01-28

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      Otherwise, in a split brained coordinator shard, the old coordinator primary might receive recoverCommit and find its local participant in prepare, because the new coordinator primary received coordinateCommit, had a stale ReplicaSetMonitor for itself, and sent prepareTransaction over the network to the old coordinator primary.

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            esha.maharishi@mongodb.com Esha Maharishi
            esha.maharishi@mongodb.com Esha Maharishi
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