Is it possible that the server has closed the connection while we are still
writing to the connection, and since there is no response from the server
for a while, we hit the idle timeout exception?
Here is the code:
val source = Source
.queue[(HttpRequest, Promise[HttpResponse])](overflowBufferSize,
OverflowStrategy.dropNew)
.via(Http().cachedHostConnectionPool[Promise[HttpResponse]](host, port))
.toMat(Sink.foreach {
case ((Success(resp), p)) => p.success(resp)
case ((Failure(e), p)) => p.failure(e)
})(Keep.left)
.run
val promise = Promise[HttpResponse]
source.offer(httpRequest -> promise).flatMap {
case QueueOfferResult.Enqueued => promise.future
case other =>
val message = s"queue failed due to $other"
Future.failed(new RuntimeException(message))
}.recoverWith {
case NonFatal(e) =>
Future.failed(new RuntimeException(e.getMessage, e))
}
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