Hi, with TPS you mean tuples-per-second? I have an open pull request that changes the WindowOperator to work on a partitioned state abstraction. In the pull request I also add a state backend that uses RocksDB, so it it possible.
The size of the windows you can keep also depends on the window function, if it is a ReduceFunction then the window result can be incrementally computed and the state that we have to keep is very small. For a WindowFunction that takes an Iterable of all the window elements the state can grow very large, of course. Cheers, Aljoscha > On 03 Feb 2016, at 11:17, Anwar Rizal <anriza...@gmail.com> wrote: > > point