On Mon, Feb 16, 2015 at 11:50 AM, Endre Varga <[email protected]>
wrote:
> Hi,
>
> The problem is really simple. You request sub.request(msgs.length) from
> the Window element, and then you send elements to it:
>
> for (msg <- msgs) {
> pub.sendNext(msg)
> }
>
> The problem here is your underlying assumption is that if you request X
> elements from a Processor (which is what the Windowed element will turn
> into) then it will *also* request X elements from its upstream. This is
> simply not true. You should wait for requests from yout processor probe
> side and only send messages that were actually requested.
>
You can take a look at this:
https://github.com/akka/akka/blob/release-2.3-dev/akka-stream-testkit/src/test/scala/akka/stream/testkit/StreamTestKit.scala#L49
-Endre
>
> -Endre
>
> On Mon, Feb 16, 2015 at 11:22 AM, Alexey Romanchuk <
> [email protected]> wrote:
>
>> Carl,
>>
>> I mean that problem is not in your code, neither in akka-stream code, but
>> in incorrect publisher behavior. Publisher should not send messages to
>> downstream more that downstream requested. If you are interested in manual
>> publisher you should call expectRequest and then send not more that
>> received messages.
>>
>> понедельник, 16 февраля 2015 г., 16:13:53 UTC+6 пользователь Carl Pulley
>> написал:
>>
>>> If I modify the materializer as follows:
>>>
>>> val settings =
>>> ActorFlowMaterializerSettings(system).withInputBuffer(initialSize = 1,
>>> maxSize = 2048)
>>>
>>> implicit val materializer = ActorFlowMaterializer(settings)
>>>
>>>
>>> then the observed issues remain. So I'm not immediately convinced the
>>> issue is due to the internal message flow buffers overflowing?
>>>
>> --
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>
>
--
>>>>>>>>>> Read the docs: http://akka.io/docs/
>>>>>>>>>> Check the FAQ:
>>>>>>>>>> http://doc.akka.io/docs/akka/current/additional/faq.html
>>>>>>>>>> Search the archives: https://groups.google.com/group/akka-user
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