Examples with AllVerticesRunning org.apache.flink.runtime.testingUtils.TestingJobManagerMessages.AllVerticesRunning used on opensource projects

Example 1 with AllVerticesRunning

use of org.apache.flink.runtime.testingUtils.TestingJobManagerMessages.AllVerticesRunning in project flink by apache.

the class BackPressureStatsTrackerITCase method testBackPressuredProducer.

/**
	 * Tests a simple fake-back pressured task. Back pressure is assumed when
	 * sampled stack traces are in blocking buffer requests.
	 */
@Test
public void testBackPressuredProducer() throws Exception {
    new JavaTestKit(testActorSystem) {

        {
            final FiniteDuration deadline = new FiniteDuration(60, TimeUnit.SECONDS);
            // The JobGraph
            final JobGraph jobGraph = new JobGraph();
            final int parallelism = 4;
            final JobVertex task = new JobVertex("Task");
            task.setInvokableClass(BackPressuredTask.class);
            task.setParallelism(parallelism);
            jobGraph.addVertex(task);
            ActorGateway jobManger = null;
            ActorGateway taskManager = null;
            //
            // 1) Consume all buffers at first (no buffers for the test task)
            //
            testBufferPool = networkBufferPool.createBufferPool(1, Integer.MAX_VALUE);
            final List<Buffer> buffers = new ArrayList<>();
            while (true) {
                Buffer buffer = testBufferPool.requestBuffer();
                if (buffer != null) {
                    buffers.add(buffer);
                } else {
                    break;
                }
            }
            try {
                jobManger = TestingUtils.createJobManager(testActorSystem, TestingUtils.defaultExecutor(), TestingUtils.defaultExecutor(), new Configuration());
                final Configuration config = new Configuration();
                config.setInteger(ConfigConstants.TASK_MANAGER_NUM_TASK_SLOTS, parallelism);
                taskManager = TestingUtils.createTaskManager(testActorSystem, jobManger, config, true, true);
                final ActorGateway jm = jobManger;
                new Within(deadline) {

                    @Override
                    protected void run() {
                        try {
                            ActorGateway testActor = new AkkaActorGateway(getTestActor(), null);
                            // Submit the job and wait until it is running
                            JobClient.submitJobDetached(jm, config, jobGraph, deadline, ClassLoader.getSystemClassLoader());
                            jm.tell(new WaitForAllVerticesToBeRunning(jobGraph.getJobID()), testActor);
                            expectMsgEquals(new AllVerticesRunning(jobGraph.getJobID()));
                            // Get the ExecutionGraph
                            jm.tell(new RequestExecutionGraph(jobGraph.getJobID()), testActor);
                            ExecutionGraphFound executionGraphResponse = expectMsgClass(ExecutionGraphFound.class);
                            ExecutionGraph executionGraph = (ExecutionGraph) executionGraphResponse.executionGraph();
                            ExecutionJobVertex vertex = executionGraph.getJobVertex(task.getID());
                            StackTraceSampleCoordinator coordinator = new StackTraceSampleCoordinator(testActorSystem.dispatcher(), 60000);
                            // Verify back pressure (clean up interval can be ignored)
                            BackPressureStatsTracker statsTracker = new BackPressureStatsTracker(coordinator, 100 * 1000, 20, Time.milliseconds(10L));
                            int numAttempts = 10;
                            int nextSampleId = 0;
                            // the buffer.
                            for (int attempt = 0; attempt < numAttempts; attempt++) {
                                try {
                                    OperatorBackPressureStats stats = triggerStatsSample(statsTracker, vertex);
                                    assertEquals(nextSampleId + attempt, stats.getSampleId());
                                    assertEquals(parallelism, stats.getNumberOfSubTasks());
                                    assertEquals(1.0, stats.getMaxBackPressureRatio(), 0.0);
                                    for (int i = 0; i < parallelism; i++) {
                                        assertEquals(1.0, stats.getBackPressureRatio(i), 0.0);
                                    }
                                    nextSampleId = stats.getSampleId() + 1;
                                    break;
                                } catch (Throwable t) {
                                    if (attempt == numAttempts - 1) {
                                        throw t;
                                    } else {
                                        Thread.sleep(500);
                                    }
                                }
                            }
                            //
                            for (Buffer buf : buffers) {
                                buf.recycle();
                            }
                            // grab them and then immediately release them.
                            while (testBufferPool.getNumberOfAvailableMemorySegments() < 100) {
                                Thread.sleep(100);
                            }
                            // Verify that no task is back pressured any more.
                            for (int attempt = 0; attempt < numAttempts; attempt++) {
                                try {
                                    OperatorBackPressureStats stats = triggerStatsSample(statsTracker, vertex);
                                    assertEquals(nextSampleId + attempt, stats.getSampleId());
                                    assertEquals(parallelism, stats.getNumberOfSubTasks());
                                    // Verify that no task is back pressured
                                    for (int i = 0; i < parallelism; i++) {
                                        assertEquals(0.0, stats.getBackPressureRatio(i), 0.0);
                                    }
                                    break;
                                } catch (Throwable t) {
                                    if (attempt == numAttempts - 1) {
                                        throw t;
                                    } else {
                                        Thread.sleep(500);
                                    }
                                }
                            }
                            // Shut down
                            jm.tell(new TestingJobManagerMessages.NotifyWhenJobRemoved(jobGraph.getJobID()), testActor);
                            // Cancel job
                            jm.tell(new JobManagerMessages.CancelJob(jobGraph.getJobID()));
                            // Response to removal notification
                            expectMsgEquals(true);
                            //
                            // 3) Trigger stats for archived job
                            //
                            statsTracker.invalidateOperatorStatsCache();
                            assertFalse("Unexpected trigger", statsTracker.triggerStackTraceSample(vertex));
                        } catch (Exception e) {
                            e.printStackTrace();
                            fail(e.getMessage());
                        }
                    }
                };
            } finally {
                TestingUtils.stopActor(jobManger);
                TestingUtils.stopActor(taskManager);
                for (Buffer buf : buffers) {
                    buf.recycle();
                }
                testBufferPool.lazyDestroy();
            }
        }
    };
}

Example 2 with AllVerticesRunning

use of org.apache.flink.runtime.testingUtils.TestingJobManagerMessages.AllVerticesRunning in project flink by apache.

the class StackTraceSampleCoordinatorITCase method testTaskClearedWhileSampling.

/**
	 * Tests that a cleared task is answered with a partial success response.
	 */
@Test
public void testTaskClearedWhileSampling() throws Exception {
    new JavaTestKit(testActorSystem) {

        {
            final FiniteDuration deadline = new FiniteDuration(60, TimeUnit.SECONDS);
            // The JobGraph
            final JobGraph jobGraph = new JobGraph();
            final int parallelism = 1;
            final JobVertex task = new JobVertex("Task");
            task.setInvokableClass(BlockingNoOpInvokable.class);
            task.setParallelism(parallelism);
            jobGraph.addVertex(task);
            ActorGateway jobManger = null;
            ActorGateway taskManager = null;
            try {
                jobManger = TestingUtils.createJobManager(testActorSystem, TestingUtils.defaultExecutor(), TestingUtils.defaultExecutor(), new Configuration());
                final Configuration config = new Configuration();
                config.setInteger(ConfigConstants.TASK_MANAGER_NUM_TASK_SLOTS, parallelism);
                taskManager = TestingUtils.createTaskManager(testActorSystem, jobManger, config, true, true);
                final ActorGateway jm = jobManger;
                new Within(deadline) {

                    @Override
                    protected void run() {
                        try {
                            ActorGateway testActor = new AkkaActorGateway(getTestActor(), null);
                            int maxAttempts = 10;
                            int sleepTime = 100;
                            for (int i = 0; i < maxAttempts; i++, sleepTime *= 2) {
                                // Submit the job and wait until it is running
                                JobClient.submitJobDetached(jm, config, jobGraph, deadline, ClassLoader.getSystemClassLoader());
                                jm.tell(new WaitForAllVerticesToBeRunning(jobGraph.getJobID()), testActor);
                                expectMsgEquals(new AllVerticesRunning(jobGraph.getJobID()));
                                // Get the ExecutionGraph
                                jm.tell(new RequestExecutionGraph(jobGraph.getJobID()), testActor);
                                ExecutionGraphFound executionGraphResponse = expectMsgClass(ExecutionGraphFound.class);
                                ExecutionGraph executionGraph = (ExecutionGraph) executionGraphResponse.executionGraph();
                                ExecutionJobVertex vertex = executionGraph.getJobVertex(task.getID());
                                StackTraceSampleCoordinator coordinator = new StackTraceSampleCoordinator(testActorSystem.dispatcher(), 60000);
                                Future<StackTraceSample> sampleFuture = coordinator.triggerStackTraceSample(vertex.getTaskVertices(), // sampling.
                                21474700 * 100, Time.milliseconds(10L), 0);
                                // Wait before cancelling so that some samples
                                // are actually taken.
                                Thread.sleep(sleepTime);
                                // Cancel job
                                scala.concurrent.Future<?> removeFuture = jm.ask(new TestingJobManagerMessages.NotifyWhenJobRemoved(jobGraph.getJobID()), remaining());
                                jm.tell(new JobManagerMessages.CancelJob(jobGraph.getJobID()));
                                try {
                                    // Throws Exception on failure
                                    sampleFuture.get(remaining().toMillis(), TimeUnit.MILLISECONDS);
                                    // partial result.
                                    break;
                                } catch (Throwable t) {
                                // We were too fast in cancelling the job.
                                // Fall through and retry.
                                } finally {
                                    Await.ready(removeFuture, remaining());
                                }
                            }
                        } catch (Exception e) {
                            e.printStackTrace();
                            fail(e.getMessage());
                        }
                    }
                };
            } finally {
                TestingUtils.stopActor(jobManger);
                TestingUtils.stopActor(taskManager);
            }
        }
    };
}