How about using EventTime windows with watermark assignment and bounded
delays. That way you allow more than 5 minutes (bounded delay) for your
request and responses to arrive. Do you have a way to assign timestamp to
the responses based on the request timestamp (does the response contain the
request timestamp in some form). That way you add them to the same window.

Sameer

On Tue, Jul 19, 2016 at 12:31 PM, Dominique Rondé <
dominique.ro...@allsecur.de> wrote:

> Hi all,
>
> once again I need a "kick" to the right direction. I have a datastream
> with request and responses identified by an ReqResp-ID. I like to calculate
> the (avg, 95%, 99%) time between the request and response and also like to
> count them. I thought of
> ".keyBy("ReqRespID").timeWindowAll(Time.minutes(5)).apply(function)" would
> do the job, but there are some cases were a Request is in the first and the
> Response is in the second window. But if i use a overlapping time window
> (i.e. timeWindowAll(Time.minutes(5),Time.seconds(60))) I have a lot of
> requests more then one time in the apply-function.
>
> Do you have any hint for me?
>
> Thanks a lot!
>
> Dominique
>
>

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