Examples with TestProcess org.apache.flink.test.util.TestProcessBuilder.TestProcess used on opensource projects

Example 1 with TestProcess

use of org.apache.flink.test.util.TestProcessBuilder.TestProcess in project flink by apache.

the class AbstractTaskManagerProcessFailureRecoveryTest method testTaskManagerProcessFailure.

@Test
public void testTaskManagerProcessFailure() throws Exception {
    TestProcess taskManagerProcess1 = null;
    TestProcess taskManagerProcess2 = null;
    TestProcess taskManagerProcess3 = null;
    File coordinateTempDir = null;
    Configuration config = new Configuration();
    config.setString(JobManagerOptions.ADDRESS, "localhost");
    config.setString(RestOptions.BIND_PORT, "0");
    config.setLong(HeartbeatManagerOptions.HEARTBEAT_INTERVAL, 200L);
    config.setLong(HeartbeatManagerOptions.HEARTBEAT_TIMEOUT, 10000L);
    config.set(HeartbeatManagerOptions.HEARTBEAT_RPC_FAILURE_THRESHOLD, 1);
    config.setString(HighAvailabilityOptions.HA_MODE, "zookeeper");
    config.setString(HighAvailabilityOptions.HA_ZOOKEEPER_QUORUM, zooKeeperResource.getConnectString());
    config.setString(HighAvailabilityOptions.HA_STORAGE_PATH, temporaryFolder.newFolder().getAbsolutePath());
    config.setInteger(TaskManagerOptions.NUM_TASK_SLOTS, 2);
    config.set(TaskManagerOptions.MANAGED_MEMORY_SIZE, MemorySize.parse("4m"));
    config.set(TaskManagerOptions.NETWORK_MEMORY_MIN, MemorySize.parse("3200k"));
    config.set(TaskManagerOptions.NETWORK_MEMORY_MAX, MemorySize.parse("3200k"));
    config.set(NettyShuffleEnvironmentOptions.NETWORK_SORT_SHUFFLE_MIN_BUFFERS, 16);
    config.set(TaskManagerOptions.TASK_HEAP_MEMORY, MemorySize.parse("128m"));
    config.set(TaskManagerOptions.CPU_CORES, 1.0);
    config.setString(JobManagerOptions.EXECUTION_FAILOVER_STRATEGY, "full");
    config.set(JobManagerOptions.RESOURCE_WAIT_TIMEOUT, Duration.ofSeconds(30L));
    try (final StandaloneSessionClusterEntrypoint clusterEntrypoint = new StandaloneSessionClusterEntrypoint(config)) {
        // check that we run this test only if the java command
        // is available on this machine
        String javaCommand = getJavaCommandPath();
        if (javaCommand == null) {
            System.out.println("---- Skipping Process Failure test : Could not find java executable ----");
            return;
        }
        clusterEntrypoint.startCluster();
        // coordination between the processes goes through a directory
        coordinateTempDir = temporaryFolder.newFolder();
        TestProcessBuilder taskManagerProcessBuilder = new TestProcessBuilder(TaskExecutorProcessEntryPoint.class.getName());
        taskManagerProcessBuilder.addConfigAsMainClassArgs(config);
        // start the first two TaskManager processes
        taskManagerProcess1 = taskManagerProcessBuilder.start();
        taskManagerProcess2 = taskManagerProcessBuilder.start();
        // the program will set a marker file in each of its parallel tasks once they are ready,
        // so that
        // this coordinating code is aware of this.
        // the program will very slowly consume elements until the marker file (later created by
        // the
        // test driver code) is present
        final File coordinateDirClosure = coordinateTempDir;
        final AtomicReference<Throwable> errorRef = new AtomicReference<>();
        // we trigger program execution in a separate thread
        Thread programTrigger = new Thread("Program Trigger") {

            @Override
            public void run() {
                try {
                    testTaskManagerFailure(config, coordinateDirClosure);
                } catch (Throwable t) {
                    t.printStackTrace();
                    errorRef.set(t);
                }
            }
        };
        // start the test program
        programTrigger.start();
        // max 20 seconds
        if (!waitForMarkerFiles(coordinateTempDir, READY_MARKER_FILE_PREFIX, PARALLELISM, 120000)) {
            // check if the program failed for some reason
            if (errorRef.get() != null) {
                Throwable error = errorRef.get();
                error.printStackTrace();
                fail("The program encountered a " + error.getClass().getSimpleName() + " : " + error.getMessage());
            } else {
                // no error occurred, simply a timeout
                fail("The tasks were not started within time (" + 120000 + "msecs)");
            }
        }
        // start the third TaskManager
        taskManagerProcess3 = taskManagerProcessBuilder.start();
        // kill one of the previous TaskManagers, triggering a failure and recovery
        taskManagerProcess1.destroy();
        waitForShutdown("TaskManager 1", taskManagerProcess1);
        // we create the marker file which signals the program functions tasks that they can
        // complete
        touchFile(new File(coordinateTempDir, PROCEED_MARKER_FILE));
        // wait for at most 5 minutes for the program to complete
        programTrigger.join(300000);
        // check that the program really finished
        assertFalse("The program did not finish in time", programTrigger.isAlive());
        // check whether the program encountered an error
        if (errorRef.get() != null) {
            Throwable error = errorRef.get();
            error.printStackTrace();
            fail("The program encountered a " + error.getClass().getSimpleName() + " : " + error.getMessage());
        }
    // all seems well :-)
    } catch (Exception e) {
        e.printStackTrace();
        printProcessLog("TaskManager 1", taskManagerProcess1);
        printProcessLog("TaskManager 2", taskManagerProcess2);
        printProcessLog("TaskManager 3", taskManagerProcess3);
        fail(e.getMessage());
    } catch (Error e) {
        e.printStackTrace();
        printProcessLog("TaskManager 1", taskManagerProcess1);
        printProcessLog("TaskManager 2", taskManagerProcess2);
        printProcessLog("TaskManager 3", taskManagerProcess3);
        throw e;
    } finally {
        if (taskManagerProcess1 != null) {
            taskManagerProcess1.destroy();
        }
        if (taskManagerProcess2 != null) {
            taskManagerProcess2.destroy();
        }
        if (taskManagerProcess3 != null) {
            taskManagerProcess3.destroy();
        }
        waitForShutdown("TaskManager 1", taskManagerProcess1);
        waitForShutdown("TaskManager 2", taskManagerProcess2);
        waitForShutdown("TaskManager 3", taskManagerProcess3);
    }
}

Example 2 with TestProcess

use of org.apache.flink.test.util.TestProcessBuilder.TestProcess in project flink by apache.

the class ExceptionUtilsITCase method run.

private static RunResult run(String className, Iterable<String> args, long directMemorySize, long metaspaceSize) throws InterruptedException, IOException {
    TestProcessBuilder taskManagerProcessBuilder = new TestProcessBuilder(className);
    if (directMemorySize > 0) {
        taskManagerProcessBuilder.addJvmArg(String.format("-XX:MaxDirectMemorySize=%d", directMemorySize));
    }
    if (metaspaceSize > 0) {
        taskManagerProcessBuilder.addJvmArg("-XX:-UseCompressedOops");
        taskManagerProcessBuilder.addJvmArg(String.format("-XX:MaxMetaspaceSize=%d", metaspaceSize));
    }
    for (String arg : args) {
        taskManagerProcessBuilder.addMainClassArg(arg);
    }
    // JAVA_TOOL_OPTIONS is configured on CI which would affect the process output
    taskManagerProcessBuilder.withCleanEnvironment();
    TestProcess p = taskManagerProcessBuilder.start();
    p.getProcess().waitFor();
    return new RunResult(p.getErrorOutput().toString().trim(), p.getProcessOutput().toString().trim());
}

Example 3 with TestProcess

use of org.apache.flink.test.util.TestProcessBuilder.TestProcess in project flink by apache.

the class ProcessFailureCancelingITCase method testCancelingOnProcessFailure.

@Test
public void testCancelingOnProcessFailure() throws Throwable {
    Assume.assumeTrue("---- Skipping Process Failure test : Could not find java executable ----", getJavaCommandPath() != null);
    TestProcess taskManagerProcess = null;
    final TestingFatalErrorHandler fatalErrorHandler = new TestingFatalErrorHandler();
    Configuration config = new Configuration();
    config.setString(JobManagerOptions.ADDRESS, "localhost");
    config.set(AkkaOptions.ASK_TIMEOUT_DURATION, Duration.ofSeconds(100));
    config.setString(HighAvailabilityOptions.HA_MODE, "zookeeper");
    config.setString(HighAvailabilityOptions.HA_ZOOKEEPER_QUORUM, zooKeeperResource.getConnectString());
    config.setString(HighAvailabilityOptions.HA_STORAGE_PATH, temporaryFolder.newFolder().getAbsolutePath());
    config.setInteger(TaskManagerOptions.NUM_TASK_SLOTS, 2);
    config.set(TaskManagerOptions.MANAGED_MEMORY_SIZE, MemorySize.parse("4m"));
    config.set(TaskManagerOptions.NETWORK_MEMORY_MIN, MemorySize.parse("3200k"));
    config.set(TaskManagerOptions.NETWORK_MEMORY_MAX, MemorySize.parse("3200k"));
    config.set(TaskManagerOptions.TASK_HEAP_MEMORY, MemorySize.parse("128m"));
    config.set(TaskManagerOptions.CPU_CORES, 1.0);
    config.setInteger(RestOptions.PORT, 0);
    final RpcService rpcService = RpcSystem.load().remoteServiceBuilder(config, "localhost", "0").createAndStart();
    final int jobManagerPort = rpcService.getPort();
    config.setInteger(JobManagerOptions.PORT, jobManagerPort);
    final DispatcherResourceManagerComponentFactory resourceManagerComponentFactory = DefaultDispatcherResourceManagerComponentFactory.createSessionComponentFactory(StandaloneResourceManagerFactory.getInstance());
    DispatcherResourceManagerComponent dispatcherResourceManagerComponent = null;
    final ScheduledExecutorService ioExecutor = TestingUtils.defaultExecutor();
    final HighAvailabilityServices haServices = HighAvailabilityServicesUtils.createHighAvailabilityServices(config, ioExecutor, AddressResolution.NO_ADDRESS_RESOLUTION, RpcSystem.load(), NoOpFatalErrorHandler.INSTANCE);
    final AtomicReference<Throwable> programException = new AtomicReference<>();
    try {
        dispatcherResourceManagerComponent = resourceManagerComponentFactory.create(config, ResourceID.generate(), ioExecutor, rpcService, haServices, blobServerResource.getBlobServer(), new HeartbeatServices(100L, 10000L, 2), NoOpMetricRegistry.INSTANCE, new MemoryExecutionGraphInfoStore(), VoidMetricQueryServiceRetriever.INSTANCE, fatalErrorHandler);
        TestProcessBuilder taskManagerProcessBuilder = new TestProcessBuilder(TaskExecutorProcessEntryPoint.class.getName());
        taskManagerProcessBuilder.addConfigAsMainClassArgs(config);
        taskManagerProcess = taskManagerProcessBuilder.start();
        // start the test program, which infinitely blocks
        Runnable programRunner = new Runnable() {

            @Override
            public void run() {
                try {
                    ExecutionEnvironment env = ExecutionEnvironment.createRemoteEnvironment("localhost", 1337, config);
                    env.setParallelism(2);
                    env.setRestartStrategy(RestartStrategies.noRestart());
                    env.generateSequence(0, Long.MAX_VALUE).map(new MapFunction<Long, Long>() {

                        @Override
                        public Long map(Long value) throws Exception {
                            synchronized (this) {
                                System.out.println(TASK_DEPLOYED_MARKER);
                                wait();
                            }
                            return 0L;
                        }
                    }).output(new DiscardingOutputFormat<>());
                    env.execute();
                } catch (Throwable t) {
                    programException.set(t);
                }
            }
        };
        Thread programThread = new Thread(programRunner);
        programThread.start();
        waitUntilAtLeastOneTaskHasBeenDeployed(taskManagerProcess);
        // kill the TaskManager after the job started to run
        taskManagerProcess.destroy();
        taskManagerProcess = null;
        // the job should fail within a few seconds due to heartbeat timeouts
        // since the CI environment is often slow, we conservatively give it up to 2 minutes
        programThread.join(TIMEOUT.toMillis());
        assertFalse("The program did not cancel in time", programThread.isAlive());
        Throwable error = programException.get();
        assertNotNull("The program did not fail properly", error);
        assertTrue(error instanceof ProgramInvocationException);
    // all seems well :-)
    } catch (Exception | Error e) {
        if (taskManagerProcess != null) {
            printOutput("TaskManager OUT", taskManagerProcess.getProcessOutput().toString());
            printOutput("TaskManager ERR", taskManagerProcess.getErrorOutput().toString());
        }
        throw ExceptionUtils.firstOrSuppressed(e, programException.get());
    } finally {
        if (taskManagerProcess != null) {
            taskManagerProcess.destroy();
        }
        if (dispatcherResourceManagerComponent != null) {
            dispatcherResourceManagerComponent.stopApplication(ApplicationStatus.SUCCEEDED, null);
        }
        fatalErrorHandler.rethrowError();
        RpcUtils.terminateRpcService(rpcService, Time.seconds(100L));
        haServices.closeAndCleanupAllData();
    }
}