Hi,

events overtaking watermarks doesn’t sound like a „wrong“ behaviour, only 
watermarks overtaking events would be bad. Do you think this only stated from 
Flink 1.5? To me this does not sound like a problem, but not sure if it is 
intended. Looping in Aljoscha, just in case.

Best,
Stefan

> Am 22.07.2018 um 22:19 schrieb Gyula Fóra <[email protected]>:
> 
> Hi,
> In 1.5.1 I have noticed some strange behaviour that happens quite frequently 
> and I just want to double check with you that this is intended.
> 
> If I have a non-parallel source that takes the following actions:
> 
> emit: event1
> emit: watermark1
> emit: event2
> 
> it can happen that a downstream operators receives watermark1 after event2. 
> It doesn't happen very often but definitely seems to happen sometimes.
> 
> Maybe this is a property of the broadcastEmit(..) method but it seems a 
> little funny :)
> 
> Thanks for the clarification!
> 
> Gyula

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