| /* |
| * Licensed to the Apache Software Foundation (ASF) under one |
| * or more contributor license agreements. See the NOTICE file |
| * distributed with this work for additional information |
| * regarding copyright ownership. The ASF licenses this file |
| * to you under the Apache License, Version 2.0 (the |
| * "License"); you may not use this file except in compliance |
| * with the License. You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, software |
| * distributed under the License is distributed on an "AS IS" BASIS, |
| * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| * See the License for the specific language governing permissions and |
| * limitations under the License. |
| */ |
| package org.apache.twill.yarn; |
| |
| import org.apache.twill.api.AbstractTwillRunnable; |
| import org.apache.twill.api.ResourceReport; |
| import org.apache.twill.api.TwillApplication; |
| import org.apache.twill.api.TwillController; |
| import org.apache.twill.api.TwillRunResources; |
| import org.apache.twill.api.TwillSpecification; |
| import org.apache.twill.api.logging.PrinterLogHandler; |
| import org.apache.twill.common.Threads; |
| import org.junit.Assert; |
| import org.junit.Test; |
| |
| import java.io.PrintWriter; |
| import java.util.concurrent.CountDownLatch; |
| import java.util.concurrent.TimeUnit; |
| |
| /** |
| * Tests whether starting containers with debugging on works. |
| */ |
| public class DebugTestRun extends BaseYarnTest { |
| |
| /** |
| * An application that contains two {@link DummyRunnable}. |
| */ |
| public static final class DummyApplication implements TwillApplication { |
| |
| @Override |
| public TwillSpecification configure() { |
| return TwillSpecification.Builder.with() |
| .setName("DummyApp") |
| .withRunnable() |
| .add("r1", new DummyRunnable()).noLocalFiles() |
| .add("r2", new DummyRunnable()).noLocalFiles() |
| .anyOrder() |
| .build(); |
| } |
| } |
| |
| /** |
| * A Runnable that will sleep in a loop until stopped. |
| */ |
| public static final class DummyRunnable extends AbstractTwillRunnable { |
| |
| private volatile Thread runThread; |
| |
| @Override |
| public void run() { |
| this.runThread = Thread.currentThread(); |
| while (!Thread.interrupted()) { |
| try { |
| TimeUnit.MILLISECONDS.sleep(100); |
| } catch (InterruptedException e) { |
| break; |
| } |
| } |
| } |
| |
| @Override |
| public void stop() { |
| if (runThread != null) { |
| runThread.interrupt(); |
| } |
| } |
| } |
| |
| private boolean waitForDebugPort(TwillController controller, String runnable, int timeLimit) |
| throws InterruptedException { |
| long millis = 0; |
| while (millis < 1000 * timeLimit) { |
| ResourceReport report = controller.getResourceReport(); |
| if (report == null || report.getRunnableResources(runnable) == null) { |
| continue; |
| } |
| for (TwillRunResources resources : report.getRunnableResources(runnable)) { |
| if (resources.getDebugPort() != null) { |
| return true; |
| } |
| } |
| TimeUnit.MILLISECONDS.sleep(100); |
| millis += 100; |
| } |
| return false; |
| } |
| |
| @Test |
| public void testDebugPortOneRunnable() throws Exception { |
| YarnTwillRunnerService runner = getTwillRunner(); |
| runner.start(); |
| |
| TwillController controller = runner.prepare(new DummyApplication()) |
| .enableDebugging("r1") |
| .addLogHandler(new PrinterLogHandler(new PrintWriter(System.out))) |
| .start(); |
| final CountDownLatch running = new CountDownLatch(1); |
| controller.onRunning(new Runnable() { |
| @Override |
| public void run() { |
| running.countDown(); |
| } |
| }, Threads.SAME_THREAD_EXECUTOR); |
| |
| Assert.assertTrue(running.await(120, TimeUnit.SECONDS)); |
| Assert.assertTrue(waitForDebugPort(controller, "r1", 30)); |
| controller.terminate().get(120, TimeUnit.SECONDS); |
| // Sleep a bit before exiting. |
| TimeUnit.SECONDS.sleep(2); |
| } |
| |
| @Test |
| public void testDebugPortAllRunnables() throws Exception { |
| YarnTwillRunnerService runner = getTwillRunner(); |
| runner.start(); |
| |
| TwillController controller = runner.prepare(new DummyApplication()) |
| .enableDebugging() |
| .addLogHandler(new PrinterLogHandler(new PrintWriter(System.out))) |
| .start(); |
| final CountDownLatch running = new CountDownLatch(1); |
| controller.onRunning(new Runnable() { |
| @Override |
| public void run() { |
| running.countDown(); |
| } |
| }, Threads.SAME_THREAD_EXECUTOR); |
| |
| Assert.assertTrue(running.await(120, TimeUnit.SECONDS)); |
| Assert.assertTrue(waitForDebugPort(controller, "r1", 30)); |
| Assert.assertTrue(waitForDebugPort(controller, "r2", 30)); |
| controller.terminate().get(120, TimeUnit.SECONDS); |
| // Sleep a bit before exiting. |
| TimeUnit.SECONDS.sleep(2); |
| } |
| } |