Thanks Rafał,

So I have a Future callback. If this in in an Actor I doubt it is safe for 
the Actor to retry the stream. The safe thing is just to throw an exception 
if the Future fails.

Gary

On Sunday, March 6, 2016 at 2:21:37 PM UTC-8, Rafał Krzewski wrote:
>
> Hi Gary,
>
> "completes with an error" in Reactive Streams sense. You might want to 
> look at the specification 
> https://github.com/reactive-streams/reactive-streams-jvm
> The error can originate in the Source (any of the Sources in more complex 
> stream graphs), or in any of the transformation steps. The information 
> about the error travels downstream until it reaches the Sink (or sinks). 
> Sinks usually provide a Future as their materialized value, and in case of 
> completed with a Failure. This is how error manifests itself to the "world" 
> outside of the stream. If your application's design is such that the stream 
> is owned by an Actor and the Actor needs to restart itself in case of 
> Stream's failure you need to "connect the wires" yourself.
>
> Cheers,
> Rafał
>
> W dniu niedziela, 6 marca 2016 21:48:59 UTC+1 użytkownik Gary Struthers 
> napisał:
>>
>> Stream supervision is similar but different to Actor supervision. I don't 
>> see what I'm supposed to do when a stream triggers a Supervision.Stop. What 
>> does it mean that a stream "completes with an error"? Where is the error? 
>> If I create a stream in an Actor is the Actor the stream's supervisor? Or 
>> how is it different?
>>
>> Thanks,
>> Gary
>>
>

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