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

Example 16 with TestingCluster

use of org.apache.flink.runtime.testingUtils.TestingCluster in project flink by apache.

the class JMXJobManagerMetricTest method testJobManagerJMXMetricAccess.

/**
	 * Tests that metrics registered on the JobManager are actually accessible via JMX.
	 *
	 * @throws Exception
	 */
@Test
public void testJobManagerJMXMetricAccess() throws Exception {
    Deadline deadline = new FiniteDuration(2, TimeUnit.MINUTES).fromNow();
    Configuration flinkConfiguration = new Configuration();
    flinkConfiguration.setString(ConfigConstants.METRICS_REPORTERS_LIST, "test");
    flinkConfiguration.setString(ConfigConstants.METRICS_REPORTER_PREFIX + "test." + ConfigConstants.METRICS_REPORTER_CLASS_SUFFIX, JMXReporter.class.getName());
    flinkConfiguration.setString(ConfigConstants.METRICS_REPORTER_PREFIX + "test.port", "9060-9075");
    flinkConfiguration.setString(ConfigConstants.METRICS_SCOPE_NAMING_JM_JOB, "jobmanager.<job_name>");
    TestingCluster flink = new TestingCluster(flinkConfiguration);
    try {
        flink.start();
        JobVertex sourceJobVertex = new JobVertex("Source");
        sourceJobVertex.setInvokableClass(BlockingInvokable.class);
        JobGraph jobGraph = new JobGraph("TestingJob", sourceJobVertex);
        jobGraph.setSnapshotSettings(new JobSnapshottingSettings(Collections.<JobVertexID>emptyList(), Collections.<JobVertexID>emptyList(), Collections.<JobVertexID>emptyList(), 500, 500, 50, 5, ExternalizedCheckpointSettings.none(), null, true));
        flink.waitForActorsToBeAlive();
        flink.submitJobDetached(jobGraph);
        Future<Object> jobRunning = flink.getLeaderGateway(deadline.timeLeft()).ask(new TestingJobManagerMessages.WaitForAllVerticesToBeRunning(jobGraph.getJobID()), deadline.timeLeft());
        Await.ready(jobRunning, deadline.timeLeft());
        MBeanServer mBeanServer = ManagementFactory.getPlatformMBeanServer();
        Set<ObjectName> nameSet = mBeanServer.queryNames(new ObjectName("org.apache.flink.jobmanager.job.lastCheckpointSize:job_name=TestingJob,*"), null);
        Assert.assertEquals(1, nameSet.size());
        assertEquals(-1L, mBeanServer.getAttribute(nameSet.iterator().next(), "Value"));
        Future<Object> jobFinished = flink.getLeaderGateway(deadline.timeLeft()).ask(new TestingJobManagerMessages.NotifyWhenJobRemoved(jobGraph.getJobID()), deadline.timeLeft());
        BlockingInvokable.unblock();
        // wait til the job has finished
        Await.ready(jobFinished, deadline.timeLeft());
    } finally {
        flink.stop();
    }
}

Example 17 with TestingCluster

use of org.apache.flink.runtime.testingUtils.TestingCluster in project flink by apache.

the class WebRuntimeMonitorITCase method testNoEscape.

// ------------------------------------------------------------------------
// Tests that access outside of the web root is not allowed
// ------------------------------------------------------------------------
/**
	 * Files are copied from the flink-dist jar to a temporary directory and
	 * then served from there. Only allow to access files in this temporary
	 * directory.
	 */
@Test
public void testNoEscape() throws Exception {
    final Deadline deadline = TestTimeout.fromNow();
    TestingCluster flink = null;
    WebRuntimeMonitor webMonitor = null;
    try {
        flink = new TestingCluster(new Configuration());
        flink.start(true);
        webMonitor = startWebRuntimeMonitor(flink);
        try (HttpTestClient client = new HttpTestClient("localhost", webMonitor.getServerPort())) {
            String expectedIndex = new Scanner(new File(MAIN_RESOURCES_PATH + "/index.html")).useDelimiter("\\A").next();
            // 1) Request index.html from web server
            client.sendGetRequest("index.html", deadline.timeLeft());
            HttpTestClient.SimpleHttpResponse response = client.getNextResponse(deadline.timeLeft());
            assertEquals(HttpResponseStatus.OK, response.getStatus());
            assertEquals(response.getType(), MimeTypes.getMimeTypeForExtension("html"));
            assertEquals(expectedIndex, response.getContent());
            // 2) Request file outside of web root
            // Create a test file in the web base dir (parent of web root)
            File illegalFile = new File(webMonitor.getBaseDir(new Configuration()), "test-file-" + UUID.randomUUID());
            illegalFile.deleteOnExit();
            assertTrue("Failed to create test file", illegalFile.createNewFile());
            // Request the created file from the web server
            client.sendGetRequest("../" + illegalFile.getName(), deadline.timeLeft());
            response = client.getNextResponse(deadline.timeLeft());
            assertEquals("Unexpected status code " + response.getStatus() + " for file outside of web root.", HttpResponseStatus.NOT_FOUND, response.getStatus());
            // 3) Request non-existing file
            client.sendGetRequest("not-existing-resource", deadline.timeLeft());
            response = client.getNextResponse(deadline.timeLeft());
            assertEquals("Unexpected status code " + response.getStatus() + " for file outside of web root.", HttpResponseStatus.NOT_FOUND, response.getStatus());
        }
    } finally {
        if (flink != null) {
            flink.shutdown();
        }
        if (webMonitor != null) {
            webMonitor.stop();
        }
    }
}

Example 18 with TestingCluster

use of org.apache.flink.runtime.testingUtils.TestingCluster in project flink by apache.

the class SavepointITCase method testSavepointForJobWithIteration.

@Test
public void testSavepointForJobWithIteration() throws Exception {
    for (int i = 0; i < ITER_TEST_PARALLELISM; ++i) {
        ITER_TEST_SNAPSHOT_WAIT[i] = new OneShotLatch();
        ITER_TEST_RESTORE_WAIT[i] = new OneShotLatch();
        ITER_TEST_CHECKPOINT_VERIFY[i] = 0;
    }
    TemporaryFolder folder = new TemporaryFolder();
    folder.create();
    // Temporary directory for file state backend
    final File tmpDir = folder.newFolder();
    final StreamExecutionEnvironment env = StreamExecutionEnvironment.getExecutionEnvironment();
    final IntegerStreamSource source = new IntegerStreamSource();
    IterativeStream<Integer> iteration = env.addSource(source).flatMap(new RichFlatMapFunction<Integer, Integer>() {

        private static final long serialVersionUID = 1L;

        @Override
        public void flatMap(Integer in, Collector<Integer> clctr) throws Exception {
            clctr.collect(in);
        }
    }).setParallelism(ITER_TEST_PARALLELISM).keyBy(new KeySelector<Integer, Object>() {

        private static final long serialVersionUID = 1L;

        @Override
        public Object getKey(Integer value) throws Exception {
            return value;
        }
    }).flatMap(new DuplicateFilter()).setParallelism(ITER_TEST_PARALLELISM).iterate();
    DataStream<Integer> iterationBody = iteration.map(new MapFunction<Integer, Integer>() {

        private static final long serialVersionUID = 1L;

        @Override
        public Integer map(Integer value) throws Exception {
            return value;
        }
    }).setParallelism(ITER_TEST_PARALLELISM);
    iteration.closeWith(iterationBody);
    StreamGraph streamGraph = env.getStreamGraph();
    streamGraph.setJobName("Test");
    JobGraph jobGraph = streamGraph.getJobGraph();
    Configuration config = new Configuration();
    config.addAll(jobGraph.getJobConfiguration());
    config.setLong(ConfigConstants.TASK_MANAGER_MEMORY_SIZE_KEY, -1L);
    config.setInteger(ConfigConstants.TASK_MANAGER_NUM_TASK_SLOTS, 2 * jobGraph.getMaximumParallelism());
    final File checkpointDir = new File(tmpDir, "checkpoints");
    final File savepointDir = new File(tmpDir, "savepoints");
    if (!checkpointDir.mkdir() || !savepointDir.mkdirs()) {
        fail("Test setup failed: failed to create temporary directories.");
    }
    config.setString(CoreOptions.STATE_BACKEND, "filesystem");
    config.setString(FsStateBackendFactory.CHECKPOINT_DIRECTORY_URI_CONF_KEY, checkpointDir.toURI().toString());
    config.setString(FsStateBackendFactory.MEMORY_THRESHOLD_CONF_KEY, "0");
    config.setString(ConfigConstants.SAVEPOINT_DIRECTORY_KEY, savepointDir.toURI().toString());
    TestingCluster cluster = new TestingCluster(config, false);
    String savepointPath = null;
    try {
        cluster.start();
        cluster.submitJobDetached(jobGraph);
        for (OneShotLatch latch : ITER_TEST_SNAPSHOT_WAIT) {
            latch.await();
        }
        savepointPath = cluster.triggerSavepoint(jobGraph.getJobID());
        source.cancel();
        jobGraph = streamGraph.getJobGraph();
        jobGraph.setSavepointRestoreSettings(SavepointRestoreSettings.forPath(savepointPath));
        cluster.submitJobDetached(jobGraph);
        for (OneShotLatch latch : ITER_TEST_RESTORE_WAIT) {
            latch.await();
        }
        source.cancel();
    } finally {
        if (null != savepointPath) {
            cluster.disposeSavepoint(savepointPath);
        }
        cluster.stop();
        cluster.awaitTermination();
    }
}

Example 19 with TestingCluster

use of org.apache.flink.runtime.testingUtils.TestingCluster in project flink by apache.

the class SavepointITCase method testTriggerSavepointAndResumeWithFileBasedCheckpoints.

/**
	 * Triggers a savepoint for a job that uses the FsStateBackend. We expect
	 * that all checkpoint files are written to a new savepoint directory.
	 *
	 * <ol>
	 * <li>Submit job, wait for some progress</li>
	 * <li>Trigger savepoint and verify that savepoint has been created</li>
	 * <li>Shut down the cluster, re-submit the job from the savepoint,
	 * verify that the initial state has been reset, and
	 * all tasks are running again</li>
	 * <li>Cancel job, dispose the savepoint, and verify that everything
	 * has been cleaned up</li>
	 * </ol>
	 */
@Test
public void testTriggerSavepointAndResumeWithFileBasedCheckpoints() throws Exception {
    // Config
    final int numTaskManagers = 2;
    final int numSlotsPerTaskManager = 2;
    final int parallelism = numTaskManagers * numSlotsPerTaskManager;
    final Deadline deadline = new FiniteDuration(5, TimeUnit.MINUTES).fromNow();
    final File testRoot = folder.newFolder();
    TestingCluster flink = null;
    try {
        // Create a test actor system
        ActorSystem testActorSystem = AkkaUtils.createDefaultActorSystem();
        // Flink configuration
        final Configuration config = new Configuration();
        config.setInteger(ConfigConstants.LOCAL_NUMBER_TASK_MANAGER, numTaskManagers);
        config.setInteger(ConfigConstants.TASK_MANAGER_NUM_TASK_SLOTS, numSlotsPerTaskManager);
        final File checkpointDir = new File(testRoot, "checkpoints");
        final File savepointRootDir = new File(testRoot, "savepoints");
        if (!checkpointDir.mkdir() || !savepointRootDir.mkdirs()) {
            fail("Test setup failed: failed to create temporary directories.");
        }
        // Use file based checkpoints
        config.setString(CoreOptions.STATE_BACKEND, "filesystem");
        config.setString(FsStateBackendFactory.CHECKPOINT_DIRECTORY_URI_CONF_KEY, checkpointDir.toURI().toString());
        config.setString(FsStateBackendFactory.MEMORY_THRESHOLD_CONF_KEY, "0");
        config.setString(ConfigConstants.SAVEPOINT_DIRECTORY_KEY, savepointRootDir.toURI().toString());
        // Start Flink
        flink = new TestingCluster(config);
        flink.start(true);
        // Submit the job
        final JobGraph jobGraph = createJobGraph(parallelism, 0, 1000);
        final JobID jobId = jobGraph.getJobID();
        // Reset the static test job helpers
        StatefulCounter.resetForTest(parallelism);
        // Retrieve the job manager
        ActorGateway jobManager = Await.result(flink.leaderGateway().future(), deadline.timeLeft());
        LOG.info("Submitting job " + jobGraph.getJobID() + " in detached mode.");
        flink.submitJobDetached(jobGraph);
        LOG.info("Waiting for some progress.");
        // wait for the JobManager to be ready
        Future<Object> allRunning = jobManager.ask(new WaitForAllVerticesToBeRunning(jobId), deadline.timeLeft());
        Await.ready(allRunning, deadline.timeLeft());
        // wait for the Tasks to be ready
        StatefulCounter.getProgressLatch().await(deadline.timeLeft().toMillis(), TimeUnit.MILLISECONDS);
        LOG.info("Triggering a savepoint.");
        Future<Object> savepointPathFuture = jobManager.ask(new TriggerSavepoint(jobId, Option.<String>empty()), deadline.timeLeft());
        final String savepointPath = ((TriggerSavepointSuccess) Await.result(savepointPathFuture, deadline.timeLeft())).savepointPath();
        LOG.info("Retrieved savepoint path: " + savepointPath + ".");
        // Retrieve the savepoint from the testing job manager
        LOG.info("Requesting the savepoint.");
        Future<Object> savepointFuture = jobManager.ask(new RequestSavepoint(savepointPath), deadline.timeLeft());
        SavepointV1 savepoint = (SavepointV1) ((ResponseSavepoint) Await.result(savepointFuture, deadline.timeLeft())).savepoint();
        LOG.info("Retrieved savepoint: " + savepointPath + ".");
        // Shut down the Flink cluster (thereby canceling the job)
        LOG.info("Shutting down Flink cluster.");
        flink.shutdown();
        flink.awaitTermination();
        // - Verification START -------------------------------------------
        // Only one savepoint should exist
        File[] files = savepointRootDir.listFiles();
        if (files != null) {
            assertEquals("Savepoint not created in expected directory", 1, files.length);
            assertTrue("Savepoint did not create self-contained directory", files[0].isDirectory());
            File savepointDir = files[0];
            File[] savepointFiles = savepointDir.listFiles();
            assertNotNull(savepointFiles);
            // Expect one metadata file and one checkpoint file per stateful
            // parallel subtask
            String errMsg = "Did not write expected number of savepoint/checkpoint files to directory: " + Arrays.toString(savepointFiles);
            assertEquals(errMsg, 1 + parallelism, savepointFiles.length);
        } else {
            fail("Savepoint not created in expected directory");
        }
        // We currently have the following directory layout: checkpointDir/jobId/chk-ID
        File jobCheckpoints = new File(checkpointDir, jobId.toString());
        if (jobCheckpoints.exists()) {
            files = jobCheckpoints.listFiles();
            assertNotNull("Checkpoint directory empty", files);
            assertEquals("Checkpoints directory not clean: " + Arrays.toString(files), 0, files.length);
        }
        // - Verification END ---------------------------------------------
        // Restart the cluster
        LOG.info("Restarting Flink cluster.");
        flink.start();
        // Retrieve the job manager
        LOG.info("Retrieving JobManager.");
        jobManager = Await.result(flink.leaderGateway().future(), deadline.timeLeft());
        LOG.info("JobManager: " + jobManager + ".");
        // Reset static test helpers
        StatefulCounter.resetForTest(parallelism);
        // Gather all task deployment descriptors
        final Throwable[] error = new Throwable[1];
        final TestingCluster finalFlink = flink;
        final Multimap<JobVertexID, TaskDeploymentDescriptor> tdds = HashMultimap.create();
        new JavaTestKit(testActorSystem) {

            {
                new Within(deadline.timeLeft()) {

                    @Override
                    protected void run() {
                        try {
                            // Register to all submit task messages for job
                            for (ActorRef taskManager : finalFlink.getTaskManagersAsJava()) {
                                taskManager.tell(new TestingTaskManagerMessages.RegisterSubmitTaskListener(jobId), getTestActor());
                            }
                            // Set the savepoint path
                            jobGraph.setSavepointRestoreSettings(SavepointRestoreSettings.forPath(savepointPath));
                            LOG.info("Resubmitting job " + jobGraph.getJobID() + " with " + "savepoint path " + savepointPath + " in detached mode.");
                            // Submit the job
                            finalFlink.submitJobDetached(jobGraph);
                            int numTasks = 0;
                            for (JobVertex jobVertex : jobGraph.getVertices()) {
                                numTasks += jobVertex.getParallelism();
                            }
                            // Gather the task deployment descriptors
                            LOG.info("Gathering " + numTasks + " submitted " + "TaskDeploymentDescriptor instances.");
                            for (int i = 0; i < numTasks; i++) {
                                ResponseSubmitTaskListener resp = (ResponseSubmitTaskListener) expectMsgAnyClassOf(getRemainingTime(), ResponseSubmitTaskListener.class);
                                TaskDeploymentDescriptor tdd = resp.tdd();
                                LOG.info("Received: " + tdd.toString() + ".");
                                TaskInformation taskInformation = tdd.getSerializedTaskInformation().deserializeValue(getClass().getClassLoader());
                                tdds.put(taskInformation.getJobVertexId(), tdd);
                            }
                        } catch (Throwable t) {
                            error[0] = t;
                        }
                    }
                };
            }
        };
        // - Verification START -------------------------------------------
        String errMsg = "Error during gathering of TaskDeploymentDescriptors";
        assertNull(errMsg, error[0]);
        // have a matching task deployment descriptor.
        for (TaskState taskState : savepoint.getTaskStates()) {
            Collection<TaskDeploymentDescriptor> taskTdds = tdds.get(taskState.getJobVertexID());
            errMsg = "Missing task for savepoint state for operator " + taskState.getJobVertexID() + ".";
            assertTrue(errMsg, taskTdds.size() > 0);
            assertEquals(taskState.getNumberCollectedStates(), taskTdds.size());
            for (TaskDeploymentDescriptor tdd : taskTdds) {
                SubtaskState subtaskState = taskState.getState(tdd.getSubtaskIndex());
                assertNotNull(subtaskState);
                errMsg = "Initial operator state mismatch.";
                assertEquals(errMsg, subtaskState.getLegacyOperatorState(), tdd.getTaskStateHandles().getLegacyOperatorState());
            }
        }
        // Await state is restored
        StatefulCounter.getRestoreLatch().await(deadline.timeLeft().toMillis(), TimeUnit.MILLISECONDS);
        // Await some progress after restore
        StatefulCounter.getProgressLatch().await(deadline.timeLeft().toMillis(), TimeUnit.MILLISECONDS);
        // - Verification END ---------------------------------------------
        LOG.info("Cancelling job " + jobId + ".");
        jobManager.tell(new CancelJob(jobId));
        LOG.info("Disposing savepoint " + savepointPath + ".");
        Future<Object> disposeFuture = jobManager.ask(new DisposeSavepoint(savepointPath), deadline.timeLeft());
        errMsg = "Failed to dispose savepoint " + savepointPath + ".";
        Object resp = Await.result(disposeFuture, deadline.timeLeft());
        assertTrue(errMsg, resp.getClass() == getDisposeSavepointSuccess().getClass());
        // - Verification START -------------------------------------------
        // The checkpoint files
        List<File> checkpointFiles = new ArrayList<>();
        for (TaskState stateForTaskGroup : savepoint.getTaskStates()) {
            for (SubtaskState subtaskState : stateForTaskGroup.getStates()) {
                ChainedStateHandle<StreamStateHandle> streamTaskState = subtaskState.getLegacyOperatorState();
                for (int i = 0; i < streamTaskState.getLength(); i++) {
                    if (streamTaskState.get(i) != null) {
                        FileStateHandle fileStateHandle = (FileStateHandle) streamTaskState.get(i);
                        checkpointFiles.add(new File(fileStateHandle.getFilePath().toUri()));
                    }
                }
            }
        }
        // The checkpoint files of the savepoint should have been discarded
        for (File f : checkpointFiles) {
            errMsg = "Checkpoint file " + f + " not cleaned up properly.";
            assertFalse(errMsg, f.exists());
        }
        if (checkpointFiles.size() > 0) {
            File parent = checkpointFiles.get(0).getParentFile();
            errMsg = "Checkpoint parent directory " + parent + " not cleaned up properly.";
            assertFalse(errMsg, parent.exists());
        }
        // All savepoints should have been cleaned up
        errMsg = "Savepoints directory not cleaned up properly: " + Arrays.toString(savepointRootDir.listFiles()) + ".";
        assertEquals(errMsg, 0, savepointRootDir.listFiles().length);
    // - Verification END ---------------------------------------------
    } finally {
        if (flink != null) {
            flink.shutdown();
        }
    }
}

Example 20 with TestingCluster

use of org.apache.flink.runtime.testingUtils.TestingCluster in project flink by apache.

the class SavepointITCase method testSubmitWithUnknownSavepointPath.

@Test
public void testSubmitWithUnknownSavepointPath() throws Exception {
    // Config
    int numTaskManagers = 1;
    int numSlotsPerTaskManager = 1;
    int parallelism = numTaskManagers * numSlotsPerTaskManager;
    // Test deadline
    final Deadline deadline = new FiniteDuration(5, TimeUnit.MINUTES).fromNow();
    final File tmpDir = CommonTestUtils.createTempDirectory();
    final File savepointDir = new File(tmpDir, "savepoints");
    TestingCluster flink = null;
    try {
        // Flink configuration
        final Configuration config = new Configuration();
        config.setInteger(ConfigConstants.LOCAL_NUMBER_TASK_MANAGER, numTaskManagers);
        config.setInteger(ConfigConstants.TASK_MANAGER_NUM_TASK_SLOTS, numSlotsPerTaskManager);
        config.setString(ConfigConstants.SAVEPOINT_DIRECTORY_KEY, savepointDir.toURI().toString());
        LOG.info("Flink configuration: " + config + ".");
        // Start Flink
        flink = new TestingCluster(config);
        LOG.info("Starting Flink cluster.");
        flink.start();
        // Retrieve the job manager
        LOG.info("Retrieving JobManager.");
        ActorGateway jobManager = Await.result(flink.leaderGateway().future(), deadline.timeLeft());
        LOG.info("JobManager: " + jobManager + ".");
        // High value to ensure timeouts if restarted.
        int numberOfRetries = 1000;
        // Submit the job
        // Long delay to ensure that the test times out if the job
        // manager tries to restart the job.
        final JobGraph jobGraph = createJobGraph(parallelism, numberOfRetries, 3600000);
        // Set non-existing savepoint path
        jobGraph.setSavepointRestoreSettings(SavepointRestoreSettings.forPath("unknown path"));
        assertEquals("unknown path", jobGraph.getSavepointRestoreSettings().getRestorePath());
        LOG.info("Submitting job " + jobGraph.getJobID() + " in detached mode.");
        try {
            flink.submitJobAndWait(jobGraph, false);
        } catch (Exception e) {
            assertEquals(JobExecutionException.class, e.getClass());
            assertEquals(FileNotFoundException.class, e.getCause().getClass());
        }
    } finally {
        if (flink != null) {
            flink.shutdown();
        }
    }
}