Kafka streams - Large time windows ?

[Walid Lezzar]

Hi,
I have a question about kafka streams : when doing a groupByKey on a kstream 
and then aggregate, is it possible to use a very large time window ? (For 
example, a 7 days long time window ? 30 days ?)
What is the impact of this ? Is it something we should avoid ?

Thanks,
Walid.

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