Details
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Task
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Resolution: Fixed
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Major - P3
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None
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Fully Compatible
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Sharding 2018-08-27
Description
Mongos should pass a 'coordinator: 1' flag to a participant shard of a transaction to indicate that mongos has chosen that shard to be the distributed commit coordinator for the transaction.
The presence of this flag on a request should cause the shard to install a TransactionCoordinator on its Session.