Hi,
Reading the kafka docs I see that grace period is defined as:
the time to admit late-arriving events after the end of the window

I however have not understood as when to use it?

If I see that some records are arriving after the end of the window and
hence not included in the join, should I not simply increase the window
size to accommodate that.

When do I really need to use grace and not alter the window size.

Thanks
Sachin

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