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From Jonas <jo...@huntun.de>
Subject Re: Expected behaviour of windows
Date Mon, 23 Jan 2017 09:57:08 GMT
The documentation says

https://flink.apache.org/news/2015/12/04/Introducing-windows.html wrote
> On each event, a trigger can decide to fire (i.e., evaluate), purge
> (remove the window and discard its content), or fire and then purge the
> window. A trigger that just fires evaluates the window and keeps it as it
> is, i.e., all elements remain in the window and are evaluated again when
> the triggers fires the next time.

So you can choose between *Fire*, *Purge* and *Fire&Purge*. Seems like
selected *Fire* but meant to choose *Fire&Purge*.

>From what it seems you want a PurgingTrigger. You also didn't state what
version of Flink you are using :)

-- Jonas



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