Hi,
So I understood that you have roughly this pipeline:
Input 1 --\
|- CoFlatMap - TimestampAndWatermarkAssigner - KeyBy - Window
Input 2 --/
If the timestamp assigner is after the CoFlatMap the processInput() method of
the extractor should still be called. Not by the StreamInputProcessor but by
ChainingOutput [1], which basically connects the Two-Input CoFlatMap to the
one-input operator that comes after that. The could still be a bug in there
somewhere, however.
Could you maybe send me the relevant parts of your code, so that I can have a
look. Or provide a minimal example.
Best,
Aljoscha
[1]
https://github.com/apache/flink/blob/6f5fa7f741538207244368c275bee9958c43a25a/flink-streaming-java/src/main/java/org/apache/flink/streaming/runtime/tasks/OperatorChain.java#L394
> On 7. Aug 2017, at 19:21, aitozi <gjying1...@gmail.com> wrote:
>
>
> Hi,
>
> my flink version is 1.2
>
> i am work on this problem these days. Below is my found.
>
> when i use "assignTimestampsAndWatermark" with same parallelism as 240 as
> the before operator, the before operator has two input(it is a "connected"
> Co-FlatMap operator with parallelism 240), it runs into that the watermark
> didn't update.
>
> the i look into the source code, that the
> StreamTwoInputProcessor.java#processInput called by TwoInputStreamTask has
> method with processElement1() and processElement2() method, but all of them
> do not run processElement in StreamInputProcessor to extractTimestamp(shown
> in TimestampsAndPeriodicWatermarksOperator)
>
> so that, the timestamp is not update, and my waterMark is update just like
> the class BoundedOutOfOrdernessTimestampExtractor .
>
> So, is it a bug that the timestamp is not update when deal with a two input
> stream.
>
> Ps: my English is not very good , i dont know can you understand me :)
>
> thanks,
> aitozi
>
>
>
> --
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