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Seeding a new subsystem #394

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@gabrielcolson

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@gabrielcolson

How would you seed a new subsystem with historical data ?

Example usecase:

  • Subsys X has an egress-esg that emits external events and store them to its event lake
  • we create Subsys Y and a routing rule to send external events sent by other subsytems to its event bus.
  • but Subsys Y also needs historical data

Possible solution:
a script similar to the aws-lambda-stream-cli that reads from Subsys X's event lake and sends the events to Subsys Y's event bus. It could work but I fear that it would send duplicates to Subsys Y's event lake.

Has anyone faced this problem before?

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