Examples with SimpleSlot org.apache.flink.runtime.instance.SimpleSlot used on opensource projects

Example 6 with SimpleSlot

use of org.apache.flink.runtime.instance.SimpleSlot in project flink by apache.

the class Scheduler method handleNewSlot.

private void handleNewSlot() {
    synchronized (globalLock) {
        Instance instance = this.newlyAvailableInstances.poll();
        if (instance == null || !instance.hasResourcesAvailable()) {
            // someone else took it
            return;
        }
        QueuedTask queued = taskQueue.peek();
        if (queued != null) {
            ScheduledUnit task = queued.getTask();
            ExecutionVertex vertex = task.getTaskToExecute().getVertex();
            try {
                SimpleSlot newSlot = instance.allocateSimpleSlot(vertex.getJobId());
                if (newSlot != null) {
                    // success, remove from the task queue and notify the future
                    taskQueue.poll();
                    if (queued.getFuture() != null) {
                        try {
                            queued.getFuture().complete(newSlot);
                        } catch (Throwable t) {
                            LOG.error("Error calling allocation future for task " + vertex.getSimpleName(), t);
                            task.getTaskToExecute().fail(t);
                        }
                    }
                }
            } catch (InstanceDiedException e) {
                if (LOG.isDebugEnabled()) {
                    LOG.debug("Instance " + instance + " was marked dead asynchronously.");
                }
                removeInstance(instance);
            }
        } else {
            this.instancesWithAvailableResources.put(instance.getTaskManagerID(), instance);
        }
    }
}

Example 7 with SimpleSlot

use of org.apache.flink.runtime.instance.SimpleSlot in project flink by apache.

the class ExecutionGraphMetricsTest method testExecutionGraphRestartTimeMetric.

/**
	 * This test tests that the restarting time metric correctly displays restarting times.
	 */
@Test
public void testExecutionGraphRestartTimeMetric() throws JobException, IOException, InterruptedException {
    final ScheduledExecutorService executor = Executors.newSingleThreadScheduledExecutor();
    try {
        // setup execution graph with mocked scheduling logic
        int parallelism = 1;
        JobVertex jobVertex = new JobVertex("TestVertex");
        jobVertex.setParallelism(parallelism);
        jobVertex.setInvokableClass(NoOpInvokable.class);
        JobGraph jobGraph = new JobGraph("Test Job", jobVertex);
        Configuration config = new Configuration();
        config.setString(ConfigConstants.METRICS_REPORTERS_LIST, "test");
        config.setString(ConfigConstants.METRICS_REPORTER_PREFIX + "test." + ConfigConstants.METRICS_REPORTER_CLASS_SUFFIX, TestingReporter.class.getName());
        Configuration jobConfig = new Configuration();
        Time timeout = Time.seconds(10L);
        MetricRegistry metricRegistry = new MetricRegistry(MetricRegistryConfiguration.fromConfiguration(config));
        assertTrue(metricRegistry.getReporters().size() == 1);
        MetricReporter reporter = metricRegistry.getReporters().get(0);
        assertTrue(reporter instanceof TestingReporter);
        TestingReporter testingReporter = (TestingReporter) reporter;
        MetricGroup metricGroup = new JobManagerMetricGroup(metricRegistry, "localhost");
        Scheduler scheduler = mock(Scheduler.class);
        ResourceID taskManagerId = ResourceID.generate();
        TaskManagerLocation taskManagerLocation = mock(TaskManagerLocation.class);
        when(taskManagerLocation.getResourceID()).thenReturn(taskManagerId);
        when(taskManagerLocation.getHostname()).thenReturn("localhost");
        TaskManagerGateway taskManagerGateway = mock(TaskManagerGateway.class);
        Instance instance = mock(Instance.class);
        when(instance.getTaskManagerLocation()).thenReturn(taskManagerLocation);
        when(instance.getTaskManagerID()).thenReturn(taskManagerId);
        when(instance.getTaskManagerGateway()).thenReturn(taskManagerGateway);
        Slot rootSlot = mock(Slot.class);
        AllocatedSlot mockAllocatedSlot = mock(AllocatedSlot.class);
        when(mockAllocatedSlot.getSlotAllocationId()).thenReturn(new AllocationID());
        SimpleSlot simpleSlot = mock(SimpleSlot.class);
        when(simpleSlot.isAlive()).thenReturn(true);
        when(simpleSlot.getTaskManagerLocation()).thenReturn(taskManagerLocation);
        when(simpleSlot.getTaskManagerID()).thenReturn(taskManagerId);
        when(simpleSlot.getTaskManagerGateway()).thenReturn(taskManagerGateway);
        when(simpleSlot.setExecutedVertex(Matchers.any(Execution.class))).thenReturn(true);
        when(simpleSlot.getRoot()).thenReturn(rootSlot);
        when(simpleSlot.getAllocatedSlot()).thenReturn(mockAllocatedSlot);
        FlinkCompletableFuture<SimpleSlot> future = new FlinkCompletableFuture<>();
        future.complete(simpleSlot);
        when(scheduler.allocateSlot(any(ScheduledUnit.class), anyBoolean())).thenReturn(future);
        when(rootSlot.getSlotNumber()).thenReturn(0);
        when(taskManagerGateway.submitTask(any(TaskDeploymentDescriptor.class), any(Time.class))).thenReturn(FlinkCompletableFuture.completed(Acknowledge.get()));
        TestingRestartStrategy testingRestartStrategy = new TestingRestartStrategy();
        ExecutionGraph executionGraph = new ExecutionGraph(executor, executor, jobGraph.getJobID(), jobGraph.getName(), jobConfig, new SerializedValue<ExecutionConfig>(null), timeout, testingRestartStrategy, Collections.<BlobKey>emptyList(), Collections.<URL>emptyList(), scheduler, getClass().getClassLoader(), metricGroup);
        // get restarting time metric
        Metric metric = testingReporter.getMetric(ExecutionGraph.RESTARTING_TIME_METRIC_NAME);
        assertNotNull(metric);
        assertTrue(metric instanceof Gauge);
        @SuppressWarnings("unchecked") Gauge<Long> restartingTime = (Gauge<Long>) metric;
        // check that the restarting time is 0 since it's the initial start
        assertTrue(0L == restartingTime.getValue());
        executionGraph.attachJobGraph(jobGraph.getVerticesSortedTopologicallyFromSources());
        // start execution
        executionGraph.scheduleForExecution();
        assertTrue(0L == restartingTime.getValue());
        List<ExecutionAttemptID> executionIDs = new ArrayList<>();
        for (ExecutionVertex executionVertex : executionGraph.getAllExecutionVertices()) {
            executionIDs.add(executionVertex.getCurrentExecutionAttempt().getAttemptId());
        }
        // tell execution graph that the tasks are in state running --> job status switches to state running
        for (ExecutionAttemptID executionID : executionIDs) {
            executionGraph.updateState(new TaskExecutionState(jobGraph.getJobID(), executionID, ExecutionState.RUNNING));
        }
        assertEquals(JobStatus.RUNNING, executionGraph.getState());
        assertTrue(0L == restartingTime.getValue());
        // fail the job so that it goes into state restarting
        for (ExecutionAttemptID executionID : executionIDs) {
            executionGraph.updateState(new TaskExecutionState(jobGraph.getJobID(), executionID, ExecutionState.FAILED, new Exception()));
        }
        assertEquals(JobStatus.RESTARTING, executionGraph.getState());
        long firstRestartingTimestamp = executionGraph.getStatusTimestamp(JobStatus.RESTARTING);
        // wait some time so that the restarting time gauge shows a value different from 0
        Thread.sleep(50);
        long previousRestartingTime = restartingTime.getValue();
        // check that the restarting time is monotonically increasing
        for (int i = 0; i < 10; i++) {
            long currentRestartingTime = restartingTime.getValue();
            assertTrue(currentRestartingTime >= previousRestartingTime);
            previousRestartingTime = currentRestartingTime;
        }
        // check that we have measured some restarting time
        assertTrue(previousRestartingTime > 0);
        // restart job
        testingRestartStrategy.restartExecutionGraph();
        executionIDs.clear();
        for (ExecutionVertex executionVertex : executionGraph.getAllExecutionVertices()) {
            executionIDs.add(executionVertex.getCurrentExecutionAttempt().getAttemptId());
        }
        for (ExecutionAttemptID executionID : executionIDs) {
            executionGraph.updateState(new TaskExecutionState(jobGraph.getJobID(), executionID, ExecutionState.RUNNING));
        }
        assertEquals(JobStatus.RUNNING, executionGraph.getState());
        assertTrue(firstRestartingTimestamp != 0);
        previousRestartingTime = restartingTime.getValue();
        // check that the restarting time does not increase after we've reached the running state
        for (int i = 0; i < 10; i++) {
            long currentRestartingTime = restartingTime.getValue();
            assertTrue(currentRestartingTime == previousRestartingTime);
            previousRestartingTime = currentRestartingTime;
        }
        // fail job again
        for (ExecutionAttemptID executionID : executionIDs) {
            executionGraph.updateState(new TaskExecutionState(jobGraph.getJobID(), executionID, ExecutionState.FAILED, new Exception()));
        }
        assertEquals(JobStatus.RESTARTING, executionGraph.getState());
        long secondRestartingTimestamp = executionGraph.getStatusTimestamp(JobStatus.RESTARTING);
        assertTrue(firstRestartingTimestamp != secondRestartingTimestamp);
        Thread.sleep(50);
        previousRestartingTime = restartingTime.getValue();
        // check that the restarting time is increasing again
        for (int i = 0; i < 10; i++) {
            long currentRestartingTime = restartingTime.getValue();
            assertTrue(currentRestartingTime >= previousRestartingTime);
            previousRestartingTime = currentRestartingTime;
        }
        assertTrue(previousRestartingTime > 0);
        // now lets fail the job while it is in restarting and see whether the restarting time then stops to increase
        // for this to work, we have to use a SuppressRestartException
        executionGraph.fail(new SuppressRestartsException(new Exception()));
        assertEquals(JobStatus.FAILED, executionGraph.getState());
        previousRestartingTime = restartingTime.getValue();
        for (int i = 0; i < 10; i++) {
            long currentRestartingTime = restartingTime.getValue();
            assertTrue(currentRestartingTime == previousRestartingTime);
            previousRestartingTime = currentRestartingTime;
        }
    } finally {
        executor.shutdownNow();
    }
}

Example 8 with SimpleSlot

use of org.apache.flink.runtime.instance.SimpleSlot in project flink by apache.

the class ExecutionVertexSchedulingTest method testSlotReleasedWhenScheduledQueued.

@Test
public void testSlotReleasedWhenScheduledQueued() {
    try {
        final ExecutionJobVertex ejv = getExecutionVertex(new JobVertexID());
        final ExecutionVertex vertex = new ExecutionVertex(ejv, 0, new IntermediateResult[0], AkkaUtils.getDefaultTimeout());
        // a slot than cannot be deployed to
        final Instance instance = getInstance(new ActorTaskManagerGateway(DummyActorGateway.INSTANCE));
        final SimpleSlot slot = instance.allocateSimpleSlot(ejv.getJobId());
        slot.releaseSlot();
        assertTrue(slot.isReleased());
        final FlinkCompletableFuture<SimpleSlot> future = new FlinkCompletableFuture<>();
        Scheduler scheduler = mock(Scheduler.class);
        when(scheduler.allocateSlot(Matchers.any(ScheduledUnit.class), anyBoolean())).thenReturn(future);
        assertEquals(ExecutionState.CREATED, vertex.getExecutionState());
        // try to deploy to the slot
        vertex.scheduleForExecution(scheduler, true);
        // future has not yet a slot
        assertEquals(ExecutionState.SCHEDULED, vertex.getExecutionState());
        future.complete(slot);
        // will have failed
        assertEquals(ExecutionState.FAILED, vertex.getExecutionState());
    } catch (Exception e) {
        e.printStackTrace();
        fail(e.getMessage());
    }
}

Example 9 with SimpleSlot

use of org.apache.flink.runtime.instance.SimpleSlot in project flink by apache.

the class ExecutionVertexSchedulingTest method testSlotReleasedWhenScheduledImmediately.

@Test
public void testSlotReleasedWhenScheduledImmediately() {
    try {
        final ExecutionJobVertex ejv = getExecutionVertex(new JobVertexID());
        final ExecutionVertex vertex = new ExecutionVertex(ejv, 0, new IntermediateResult[0], AkkaUtils.getDefaultTimeout());
        // a slot than cannot be deployed to
        final Instance instance = getInstance(new ActorTaskManagerGateway(DummyActorGateway.INSTANCE));
        final SimpleSlot slot = instance.allocateSimpleSlot(ejv.getJobId());
        slot.releaseSlot();
        assertTrue(slot.isReleased());
        Scheduler scheduler = mock(Scheduler.class);
        FlinkCompletableFuture<SimpleSlot> future = new FlinkCompletableFuture<>();
        future.complete(slot);
        when(scheduler.allocateSlot(Matchers.any(ScheduledUnit.class), anyBoolean())).thenReturn(future);
        assertEquals(ExecutionState.CREATED, vertex.getExecutionState());
        // try to deploy to the slot
        vertex.scheduleForExecution(scheduler, false);
        // will have failed
        assertEquals(ExecutionState.FAILED, vertex.getExecutionState());
    } catch (Exception e) {
        e.printStackTrace();
        fail(e.getMessage());
    }
}

Example 10 with SimpleSlot

use of org.apache.flink.runtime.instance.SimpleSlot in project flink by apache.

the class ExecutionVertexSchedulingTest method testScheduleToDeploying.

@Test
public void testScheduleToDeploying() {
    try {
        final ExecutionJobVertex ejv = getExecutionVertex(new JobVertexID());
        final ExecutionVertex vertex = new ExecutionVertex(ejv, 0, new IntermediateResult[0], AkkaUtils.getDefaultTimeout());
        final Instance instance = getInstance(new ActorTaskManagerGateway(new ExecutionGraphTestUtils.SimpleActorGateway(TestingUtils.defaultExecutionContext())));
        final SimpleSlot slot = instance.allocateSimpleSlot(ejv.getJobId());
        Scheduler scheduler = mock(Scheduler.class);
        FlinkCompletableFuture<SimpleSlot> future = new FlinkCompletableFuture<>();
        future.complete(slot);
        when(scheduler.allocateSlot(Matchers.any(ScheduledUnit.class), anyBoolean())).thenReturn(future);
        assertEquals(ExecutionState.CREATED, vertex.getExecutionState());
        // try to deploy to the slot
        vertex.scheduleForExecution(scheduler, false);
        assertEquals(ExecutionState.DEPLOYING, vertex.getExecutionState());
    } catch (Exception e) {
        e.printStackTrace();
        fail(e.getMessage());
    }
}