Unexplained TimeOut

[avi maslati]

Hi Guys,

Running the following code almost ended with time out (I made sure the server always responds)

and nothing is printed to screen.

Changing the first  thenApply to  thenApplyAsync solves the problem.

I am not sure if this code is supported, and I'd appreciate it if someone can shed some light on this.

I am using AHC 2.10.0 on windows 7.

public static void main(String[] args) throws Exception {
  AsyncHttpClient client = Dsl.asyncHttpClient();

    client.prepareGet("http://google.com").execute()
            .toCompletableFuture()
            .thenApply(response -> client.prepareGet("http://google.com")
                                    .execute()
                                    .toCompletableFuture().join()
                                    .getResponseBody())
            .thenAccept(s -> System.out.println(s))
            .exceptionally(t->{System.out.println(t.getMessage()); return null;});
    Thread.sleep(1000000);
    client.close();
}

Thanks

Avi

[Stéphane LANDELLE]

YOU MUST NOT BLOCK IN I/O THREADS!!!

try(AsyncHttpClient client = asyncHttpClient()) {
  client.prepareGet("https://google.com").execute()
    .toCompletableFuture()
    .thenCompose(response -> client.prepareGet("https://google.com")
      .execute()
      .toCompletableFuture()
      .thenApply(Response::getResponseBody))
    .thenAccept(System.out::println)

    .exceptionally(t->{System.out.println(t.getMessage()); return null;});
  Thread.sleep(1000000);
}

Stéphane Landelle Chief Technical Officer twitter: @slandelle site: gatling.io

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[Matt Farmer]

For posterity, can you try upgrading to 2.10.4 to see if the behavior changes?

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[avi maslati]

The behavior is exactly the same in version 2.10.4, probably it's because of blocking the I/O thread as  Stéphane Landelle wrote below.

To view this discussion on the web visit https://groups.google.com/d/msgid/asynchttpclient/CAM5dya_5xkvmyCcKmQ_Osddt0iNmnU1X7FKp0%2BT3V%2B5%3D01ZHeQ%40mail.gmail.com.