I believe your missing over this point: "and also to not expire the side input till the main input watermark advances beyond the garbage collection hold of the side input."
On Thu, Mar 8, 2018 at 3:33 PM, Shen Li <cs.she...@gmail.com> wrote: > Hi Lukasz, > > Thanks again. > > > the runner is required to hold back the main input till the side input > is ready > > Yes, I understand these requirements. But what if the side input expires > before it becomes ready? > > Shen > >
