Hi Xintong, Does reactive mode need checkpoint for re-scheduling ? Thanks, Alexey
________________________________ From: Xintong Song <tonysong...@gmail.com> Sent: Sunday, May 16, 2021 7:30:15 PM To: Flink User Mail List <user@flink.apache.org> Subject: Re: reactive mode and back pressure Hi Alexey, I don't think the new reactive mode makes any changes to the checkpoint/savepoint mechanism, at least not at the moment. However, you might want to take a look at the unaligned checkpoint [1]. The unaligned checkpoint is designed to be tolerant with back pressure. AFAIK, this can work with both the default and the new reactive modes. Thank you~ Xintong Song [1] https://ci.apache.org/projects/flink/flink-docs-release-1.13/docs/ops/state/checkpoints/#unaligned-checkpoints On Fri, May 14, 2021 at 11:29 PM Alexey Trenikhun <yen...@msn.com<mailto:yen...@msn.com>> wrote: Hello, Is new reactive mode can operate under back pressure? Old manual rescaling via taking savepoint didn't work with system under back pressure, since it was practically impossible to take savepoint, so wondering is reactive mode expected to be better in this regards ? Thanks, Alexey
