Hello there, I would like to hear your advise.
What do you do with existing aggregated data in lambda architecture after algorithm change? Lets say when you improve it.
Do you reprocess all historical data with a new algorithm?
Do you use versioning for algorithms and computed metrics?
What about clients who already used aggregated data in the past?
I live in a place where almost every developer is employed and hire new skilled people is very hard. How do you motivate senior developers to join your company?
