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Event Sourcing Video from Michael Ploed

Event Sourcing I want to share a great video I found few days ago that describes very well what Event Sourcing is.

Monday, January 29, 2018


It is impossible for a distributed computer system to simultaneously provide all three of the following guarantees:
  • Consistency: All nodes see the same data at the same time
  • Availability: Node failures do not prevent other survivors from continuing to operate (a guarantee that every request receives a response about whether it succeeded or failed)
  • Partition tolerance: the system continues to operate despite arbitrary partitioning due to network failures
“Of three properties of shared-data systems (Consistency, Availability and tolerance to network Partitions) only two can be achieved at any given moment in time.”

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