Thank, looks like this bugs, How workaround I tried set withWatermarkFn2 in Instant.now() (like NowTimestampFn in KafkaIO)
DirectRunner - nothing changed FlinkRunner - trigger started work correct Can this behavior be caused by UnboundedReadEvaluatorFactory line 142? Some description of my pipeline kafka -> transform1 -> window.into (10s) -> groupBy -> output1 |-> transform2 -> output2 I alway can see output2 but output1 work unstable On 2016-11-07 10:07 (+0400), Raghu Angadi <r...@google.com.INVALID> wrote: > On Sun, Nov 6, 2016 at 4:31 AM, Demin Alexey <di...@gmail.com> wrote:> > > > This is bug or incorrect using API from my side?> > > > This is a bug in KafkaIO. It should advance the watermark when there are no> > messages to read. https://issues.apache.org/jira/browse/BEAM-591> > > I want to fix it, but may not get to it until Thanksgiving, will see.> >