One way to deal with this is by using the source idleness setting. https://ci.apache.org/projects/flink/flink-docs-master/docs/dev/datastream/event-time/generating_watermarks/#dealing-with-idle-sources
On Sat, Jun 19, 2021 at 12:06 PM Dan Hill <quietgol...@gmail.com> wrote: > Hi. > > I remember listening to Flink Forward talks about strategies for handling > low-traffic Kafka partitions. One of the talks showed a technique for > sending events to advance the watermarks through most levels of the event > flow (Kafka source through the sinks). > > One of the talks mentioned there were discussions of improving the > handling of low-traffic Kafka partitions directly inside of Flink. What's > the status of this? > > Thanks! > - Dan >