Examples with LeaderRetrievalService org.apache.flink.runtime.leaderretrieval.LeaderRetrievalService used on opensource projects

Example 11 with LeaderRetrievalService

use of org.apache.flink.runtime.leaderretrieval.LeaderRetrievalService in project flink by apache.

the class MiniCluster method waitUntilTaskManagerRegistrationsComplete.

public void waitUntilTaskManagerRegistrationsComplete() throws Exception {
    LeaderRetrievalService rmMasterListener = null;
    Future<LeaderAddressAndId> addressAndIdFuture;
    try {
        synchronized (lock) {
            checkState(running, "FlinkMiniCluster is not running");
            OneTimeLeaderListenerFuture listenerFuture = new OneTimeLeaderListenerFuture();
            rmMasterListener = haServices.getResourceManagerLeaderRetriever();
            rmMasterListener.start(listenerFuture);
            addressAndIdFuture = listenerFuture.future();
        }
        final LeaderAddressAndId addressAndId = addressAndIdFuture.get();
        final ResourceManagerGateway resourceManager = commonRpcService.connect(addressAndId.leaderAddress(), ResourceManagerGateway.class).get();
        final int numTaskManagersToWaitFor = taskManagerRunners.length;
        // poll and wait until enough TaskManagers are available
        while (true) {
            int numTaskManagersAvailable = resourceManager.getNumberOfRegisteredTaskManagers(addressAndId.leaderId()).get();
            if (numTaskManagersAvailable >= numTaskManagersToWaitFor) {
                break;
            }
            Thread.sleep(2);
        }
    } finally {
        try {
            if (rmMasterListener != null) {
                rmMasterListener.stop();
            }
        } catch (Exception e) {
            LOG.warn("Error shutting down leader listener for ResourceManager");
        }
    }
}

Example 12 with LeaderRetrievalService

use of org.apache.flink.runtime.leaderretrieval.LeaderRetrievalService in project flink by apache.

the class ClusterClient method retrieveJob.

/**
	 * Reattaches to a running from from the supplied job id
	 * @param jobID The job id of the job to attach to
	 * @return The JobExecutionResult for the jobID
	 * @throws JobExecutionException if an error occurs during monitoring the job execution
	 */
public JobExecutionResult retrieveJob(JobID jobID) throws JobExecutionException {
    final LeaderRetrievalService leaderRetrievalService;
    try {
        leaderRetrievalService = LeaderRetrievalUtils.createLeaderRetrievalService(flinkConfig);
    } catch (Exception e) {
        throw new JobRetrievalException(jobID, "Could not create the leader retrieval service", e);
    }
    ActorGateway jobManagerGateway;
    try {
        jobManagerGateway = getJobManagerGateway();
    } catch (Exception e) {
        throw new JobRetrievalException(jobID, "Could not retrieve the JobManager Gateway");
    }
    final JobListeningContext listeningContext = JobClient.attachToRunningJob(jobID, jobManagerGateway, flinkConfig, actorSystemLoader.get(), leaderRetrievalService, timeout, printStatusDuringExecution);
    return JobClient.awaitJobResult(listeningContext);
}

Example 13 with LeaderRetrievalService

use of org.apache.flink.runtime.leaderretrieval.LeaderRetrievalService in project flink by apache.

the class ClusterClient method run.

/**
	 * Submits a JobGraph blocking.
	 * @param jobGraph The JobGraph
	 * @param classLoader User code class loader to deserialize the results and errors (may contain custom classes).
	 * @return JobExecutionResult
	 * @throws ProgramInvocationException
	 */
public JobExecutionResult run(JobGraph jobGraph, ClassLoader classLoader) throws ProgramInvocationException {
    waitForClusterToBeReady();
    final LeaderRetrievalService leaderRetrievalService;
    try {
        leaderRetrievalService = LeaderRetrievalUtils.createLeaderRetrievalService(flinkConfig, true);
    } catch (Exception e) {
        throw new ProgramInvocationException("Could not create the leader retrieval service", e);
    }
    try {
        logAndSysout("Submitting job with JobID: " + jobGraph.getJobID() + ". Waiting for job completion.");
        this.lastJobExecutionResult = JobClient.submitJobAndWait(actorSystemLoader.get(), flinkConfig, leaderRetrievalService, jobGraph, timeout, printStatusDuringExecution, classLoader);
        return this.lastJobExecutionResult;
    } catch (JobExecutionException e) {
        throw new ProgramInvocationException("The program execution failed: " + e.getMessage(), e);
    }
}

Example 14 with LeaderRetrievalService

use of org.apache.flink.runtime.leaderretrieval.LeaderRetrievalService in project flink by apache.

the class WebRuntimeMonitorITCase method testRedirectToLeader.

/**
	 * Tests that the monitor associated with the following job manager redirects to the leader.
	 */
@Test
public void testRedirectToLeader() throws Exception {
    final Deadline deadline = TestTimeout.fromNow();
    ActorSystem[] jobManagerSystem = new ActorSystem[2];
    WebRuntimeMonitor[] webMonitor = new WebRuntimeMonitor[2];
    List<LeaderRetrievalService> leaderRetrievalServices = new ArrayList<>();
    try (TestingServer zooKeeper = new TestingServer()) {
        final Configuration config = ZooKeeperTestUtils.createZooKeeperHAConfig(zooKeeper.getConnectString(), temporaryFolder.getRoot().getPath());
        File logDir = temporaryFolder.newFolder();
        Path logFile = Files.createFile(new File(logDir, "jobmanager.log").toPath());
        Files.createFile(new File(logDir, "jobmanager.out").toPath());
        config.setInteger(ConfigConstants.JOB_MANAGER_WEB_PORT_KEY, 0);
        config.setString(ConfigConstants.JOB_MANAGER_WEB_LOG_PATH_KEY, logFile.toString());
        for (int i = 0; i < jobManagerSystem.length; i++) {
            jobManagerSystem[i] = AkkaUtils.createActorSystem(new Configuration(), new Some<>(new Tuple2<String, Object>("localhost", 0)));
        }
        for (int i = 0; i < webMonitor.length; i++) {
            LeaderRetrievalService lrs = ZooKeeperUtils.createLeaderRetrievalService(config);
            leaderRetrievalServices.add(lrs);
            webMonitor[i] = new WebRuntimeMonitor(config, lrs, jobManagerSystem[i]);
        }
        ActorRef[] jobManager = new ActorRef[2];
        String[] jobManagerAddress = new String[2];
        for (int i = 0; i < jobManager.length; i++) {
            Configuration jmConfig = config.clone();
            jmConfig.setInteger(ConfigConstants.JOB_MANAGER_WEB_PORT_KEY, webMonitor[i].getServerPort());
            jobManager[i] = JobManager.startJobManagerActors(jmConfig, jobManagerSystem[i], TestingUtils.defaultExecutor(), TestingUtils.defaultExecutor(), JobManager.class, MemoryArchivist.class)._1();
            jobManagerAddress[i] = AkkaUtils.getAkkaURL(jobManagerSystem[i], jobManager[i]);
            webMonitor[i].start(jobManagerAddress[i]);
        }
        LeaderRetrievalService lrs = ZooKeeperUtils.createLeaderRetrievalService(config);
        leaderRetrievalServices.add(lrs);
        TestingListener leaderListener = new TestingListener();
        lrs.start(leaderListener);
        leaderListener.waitForNewLeader(deadline.timeLeft().toMillis());
        String leaderAddress = leaderListener.getAddress();
        int leaderIndex = leaderAddress.equals(jobManagerAddress[0]) ? 0 : 1;
        int followerIndex = (leaderIndex + 1) % 2;
        ActorSystem leadingSystem = jobManagerSystem[leaderIndex];
        ActorSystem followerSystem = jobManagerSystem[followerIndex];
        WebMonitor leadingWebMonitor = webMonitor[leaderIndex];
        WebMonitor followerWebMonitor = webMonitor[followerIndex];
        // For test stability reason we have to wait until we are sure that both leader
        // listeners have been notified.
        JobManagerRetriever leadingRetriever = Whitebox.getInternalState(leadingWebMonitor, "retriever");
        JobManagerRetriever followerRetriever = Whitebox.getInternalState(followerWebMonitor, "retriever");
        // Wait for the initial notifications
        waitForLeaderNotification(leadingSystem, jobManager[leaderIndex], leadingRetriever, deadline);
        waitForLeaderNotification(leadingSystem, jobManager[leaderIndex], followerRetriever, deadline);
        try (HttpTestClient leaderClient = new HttpTestClient("localhost", leadingWebMonitor.getServerPort());
            HttpTestClient followingClient = new HttpTestClient("localhost", followerWebMonitor.getServerPort())) {
            String expected = new Scanner(new File(MAIN_RESOURCES_PATH + "/index.html")).useDelimiter("\\A").next();
            // Request the file from the leading web server
            leaderClient.sendGetRequest("index.html", deadline.timeLeft());
            HttpTestClient.SimpleHttpResponse response = leaderClient.getNextResponse(deadline.timeLeft());
            assertEquals(HttpResponseStatus.OK, response.getStatus());
            assertEquals(response.getType(), MimeTypes.getMimeTypeForExtension("html"));
            assertEquals(expected, response.getContent());
            // Request the file from the following web server
            followingClient.sendGetRequest("index.html", deadline.timeLeft());
            response = followingClient.getNextResponse(deadline.timeLeft());
            assertEquals(HttpResponseStatus.TEMPORARY_REDIRECT, response.getStatus());
            assertTrue(response.getLocation().contains(String.valueOf(leadingWebMonitor.getServerPort())));
            // Kill the leader
            leadingSystem.shutdown();
            // Wait for the notification of the follower
            waitForLeaderNotification(followerSystem, jobManager[followerIndex], followerRetriever, deadline);
            // Same request to the new leader
            followingClient.sendGetRequest("index.html", deadline.timeLeft());
            response = followingClient.getNextResponse(deadline.timeLeft());
            assertEquals(HttpResponseStatus.OK, response.getStatus());
            assertEquals(response.getType(), MimeTypes.getMimeTypeForExtension("html"));
            assertEquals(expected, response.getContent());
            // Simple overview request
            followingClient.sendGetRequest("/overview", deadline.timeLeft());
            response = followingClient.getNextResponse(deadline.timeLeft());
            assertEquals(HttpResponseStatus.OK, response.getStatus());
            assertEquals(response.getType(), MimeTypes.getMimeTypeForExtension("json"));
            assertTrue(response.getContent().contains("\"taskmanagers\":1") || response.getContent().contains("\"taskmanagers\":0"));
        }
    } finally {
        for (ActorSystem system : jobManagerSystem) {
            if (system != null) {
                system.shutdown();
            }
        }
        for (WebMonitor monitor : webMonitor) {
            monitor.stop();
        }
        for (LeaderRetrievalService lrs : leaderRetrievalServices) {
            lrs.stop();
        }
    }
}

Example 15 with LeaderRetrievalService

use of org.apache.flink.runtime.leaderretrieval.LeaderRetrievalService in project flink by apache.

the class WebRuntimeMonitorITCase method testLeaderNotAvailable.

@Test
public void testLeaderNotAvailable() throws Exception {
    final Deadline deadline = TestTimeout.fromNow();
    ActorSystem actorSystem = null;
    WebRuntimeMonitor webRuntimeMonitor = null;
    try (TestingServer zooKeeper = new TestingServer()) {
        File logDir = temporaryFolder.newFolder();
        Path logFile = Files.createFile(new File(logDir, "jobmanager.log").toPath());
        Files.createFile(new File(logDir, "jobmanager.out").toPath());
        final Configuration config = new Configuration();
        config.setInteger(ConfigConstants.JOB_MANAGER_WEB_PORT_KEY, 0);
        config.setString(ConfigConstants.JOB_MANAGER_WEB_LOG_PATH_KEY, logFile.toString());
        config.setString(HighAvailabilityOptions.HA_MODE, "ZOOKEEPER");
        config.setString(HighAvailabilityOptions.HA_ZOOKEEPER_QUORUM, zooKeeper.getConnectString());
        actorSystem = AkkaUtils.createDefaultActorSystem();
        LeaderRetrievalService leaderRetrievalService = mock(LeaderRetrievalService.class);
        webRuntimeMonitor = new WebRuntimeMonitor(config, leaderRetrievalService, actorSystem);
        webRuntimeMonitor.start("akka://schmakka");
        try (HttpTestClient client = new HttpTestClient("localhost", webRuntimeMonitor.getServerPort())) {
            client.sendGetRequest("index.html", deadline.timeLeft());
            HttpTestClient.SimpleHttpResponse response = client.getNextResponse();
            assertEquals(HttpResponseStatus.SERVICE_UNAVAILABLE, response.getStatus());
            assertEquals(MimeTypes.getMimeTypeForExtension("txt"), response.getType());
            assertTrue(response.getContent().contains("refresh"));
        }
    } finally {
        if (actorSystem != null) {
            actorSystem.shutdown();
        }
        if (webRuntimeMonitor != null) {
            webRuntimeMonitor.stop();
        }
    }
}