There is concept of periodic watermarker , you can use that if you are working on eventtime.
On Fri, May 24, 2019 at 1:51 PM wangl...@geekplus.com.cn < wangl...@geekplus.com.cn> wrote: > > I want to do something every one minute. > > Using TumblingWindow, the function will not be triigged if there's no > message received during this minute. But i still need to execute the > funtion. > > How can i implement it ? > > ------------------------------ > wangl...@geekplus.com.cn > > > > -- *Cheers * *Puneet Kinra* *Mobile:+918800167808 | Skype : puneet.ki...@customercentria.com <puneet.ki...@customercentria.com>* *e-mail :puneet.ki...@customercentria.com <puneet.ki...@customercentria.com>*