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.
-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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