stream - count-based vs. tumbling window -


in stream processing, what's difference between count-based (aka tuple-based) window , tumbling window? perspective, same: tumbling window sets new (start,end)-pointers, each time number of elements has arrived (it sliding window size=slide). , count-based window does.

can explain difference me?

a count window sized number of event inside of it. count window not have specific amount of time going valid.

a tumbling window has fixed timespan , create new windows of data based on timespan configured with. events fall timespan used in aggregates functions of window.

using event windows

it takes little digging find link paints clear picture of window types graphical timelines illustrate how data behaves inside each.

windows in streaminsight: basics

this page has solid graphical example of means tumbling window.


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