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From Timo Walther <twal...@apache.org>
Subject Re: load balancing of keys to operators
Date Tue, 21 Mar 2017 08:47:58 GMT
I think it very depends on your use case, maybe you can use combiner 
first to reduce the amount of records per key. Maybe you can explain 
your application a bit more (which window, type of aggregations).

It often helps e.g. to introduce an artifical key und merge the result 
of multiple windows in a downstream operator.

Am 20/03/17 um 18:25 schrieb Sonex:
> Thanx for your response.
> When using time windows, doesn`t flink know the load per window? I have
> observed this behavior in windows as well.
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