reactive-streams

问题 I'm trying to write a tool for batch data upload using Akka HTTP 2.0-M2. But I'm facing akka.stream.OverflowStrategy$Fail$BufferOverflowException: Exceeded configured max-open-requests value of [32] error. I tried to isolate a problem and here is the sample code which also fails: public class TestMaxRequests { private static final class Router extends HttpApp { @Override public Route createRoute() { return route( path("test").route( get(handleWith(ctx -> ctx.complete("OK"))) ) ); } } public

问题 UPDATE FROM 2015-10-30 based on Roland Kuhn Awnser: Akka Streams is using asynchronous message passing between Actors to implement stream processing stages. Passing data across an asynchronous boundary has an overhead that you are seeing here: your computation seems to take only about 160ns (derived from the single-threaded measurement) while the streaming solution takes roughly 1µs per element, which is dominated by the message passing. Another misconception is that saying “stream” implies