According to the windowing ( http://samza.apache.org/learn/documentation/0.13/container/windowing.html) documentation, I know that I can specify a fixed duration window, like 8640000ms (one day). That means if the window starts at 9:00 AM, then it will end at 9:00 AM the next day.
But I need a kind of window that overlaps some calendar day, that means whenever the window starts, it will end at the end of the day. How can I do this using Samza windowing system? Do I need to create my own window and trigger implementation? Thank you!