medium10 pts · first answer countskafkastream-processingstate

Removing duplicate clicks in a stream

A click stream has duplicates that arrive up to 10 minutes apart with the same click_id. Which streaming approach removes them without unbounded state?

A.Keep every click_id ever seen, foreverB.Sort the whole stream by click_id each hourC.Keep seen click_ids in state that expires in ~10 minD.Drop every click that arrives within 10 minutes

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Removing duplicate clicks in a stream

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