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From Aljoscha Krettek <aljos...@apache.org>
Subject Re: Custom sliding window
Date Fri, 06 Oct 2017 09:16:39 GMT

I think you can implement that by writing a custom Trigger that combines functionality of
CountTrigger and EventTimeTrigger. You should keep in mind, though, that having windows of
size 1 hour and slide 5 seconds will lead to a lot of duplication because in Flink every sliding
window is considered separate from the other windows. Meaning that with those settings each
record will be put into 720 different sliding windows (there's 3600 seconds in one hour, divided
by 5 yield 720).


> On 4. Oct 2017, at 21:50, G.S.Vijay Raajaa <gsvijayraajaa@gmail.com> wrote:
> Hi,
> I would like to implement a custom time based sliding window . The idea is that the window
is of 1 hr size and slides every 5 second. I would like to process the window function after
10 records are accumulated in the window till it reaches 1 hr, post that since it slides every
5 second, the window function will be called automatically. Any direction to implement the
same will be much appreciated?
> Regards,
> Vijay Raajaa G S

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