Java Code Examples for jdk.management.jfr.FlightRecorderMXBean#startRecording()

The following examples show how to use jdk.management.jfr.FlightRecorderMXBean#startRecording() . You can vote up the ones you like or vote down the ones you don't like, and go to the original project or source file by following the links above each example. You may check out the related API usage on the sidebar.

Example 1

Source File: TestCopyToRunning.java From TencentKona-8 with GNU General Public License v2.0

6 votes

public static void main(String[] args) throws Exception {
    FlightRecorderMXBean bean = JmxHelper.getFlighteRecorderMXBean();

    long recId = bean.newRecording();
    bean.startRecording(recId);
    SimpleEventHelper.createEvent(1);

    Path path = Paths.get(".", "my.jfr");
    bean.copyTo(recId, path.toString());

    List<RecordedEvent> events = RecordingFile.readAllEvents(path);
    Asserts.assertTrue(events.iterator().hasNext(), "No events found");
    for (RecordedEvent event : events) {
        System.out.println("Event:" + event);
    }

    Recording recording = getRecording(recId);
    Asserts.assertEquals(recording.getState(), RecordingState.RUNNING, "Recording not in state running");
    bean.stopRecording(recId);
    Asserts.assertEquals(recording.getState(), RecordingState.STOPPED, "Recording not in state stopped");
    bean.closeRecording(recId);
    Asserts.assertEquals(recording.getState(), RecordingState.CLOSED, "Recording not in state closed");
}

Example 2

Source File: TestEnoughPermission.java From TencentKona-8 with GNU General Public License v2.0

6 votes

private static long testRecording(FlightRecorderMXBean bean) throws Exception {
    System.out.println("A");
    long recId = bean.newRecording();
    System.out.println("B");
    bean.setPredefinedConfiguration(recId, "profile");
    System.out.println("C");
    bean.startRecording(recId);
    System.out.println("D");
    Asserts.assertTrue(bean.getRecordings().stream().anyMatch(r -> { return r.getId() == recId; }), "recId not found");
    System.out.println("E");
    bean.stopRecording(recId);

    final Path path = Paths.get(".", "rec" + recId + ".jfr");
    bean.copyTo(recId, path.toString());
    //EventSet events = EventSet.fromFile(path);
    return recId;
}

Example 3

Source File: TestCopyToInvalidPath.java From TencentKona-8 with GNU General Public License v2.0

6 votes

public static void main(String[] args) throws Throwable {
    FlightRecorderMXBean bean = JmxHelper.getFlighteRecorderMXBean();

    long recId = bean.newRecording();
    bean.startRecording(recId);
    SimpleEventHelper.createEvent(1);
    bean.stopRecording(recId);

    CommonHelper.verifyException(()->{bean.copyTo(recId, null);}, "copyTo(null)", NullPointerException.class);
    CommonHelper.verifyException(()->{bean.copyTo(recId, "");}, "copyTo('')", IOException.class);

    String p = Paths.get(".", "thisdir", "doesnot", "exists").toString();
    CommonHelper.verifyException(()->{bean.copyTo(recId, p);}, "copyTo(dirNotExist)", IOException.class);

    bean.closeRecording(recId);
}

Example 4

Source File: TestCopyToInvalidPath.java From dragonwell8_jdk with GNU General Public License v2.0

6 votes

public static void main(String[] args) throws Throwable {
    FlightRecorderMXBean bean = JmxHelper.getFlighteRecorderMXBean();

    long recId = bean.newRecording();
    bean.startRecording(recId);
    SimpleEventHelper.createEvent(1);
    bean.stopRecording(recId);

    CommonHelper.verifyException(()->{bean.copyTo(recId, null);}, "copyTo(null)", NullPointerException.class);
    CommonHelper.verifyException(()->{bean.copyTo(recId, "");}, "copyTo('')", IOException.class);

    String p = Paths.get(".", "thisdir", "doesnot", "exists").toString();
    CommonHelper.verifyException(()->{bean.copyTo(recId, p);}, "copyTo(dirNotExist)", IOException.class);

    bean.closeRecording(recId);
}

Example 5

Source File: TestRecordingState.java From dragonwell8_jdk with GNU General Public License v2.0

6 votes

public static void main(String[] args) throws Throwable {
    FlightRecorderMXBean bean = JmxHelper.getFlighteRecorderMXBean();

    List<RecordingInfo> preCreateRecordings = bean.getRecordings();
    long recId = bean.newRecording();
    JmxHelper.verifyNotExists(recId, preCreateRecordings);
    JmxHelper.verifyState(recId, RecordingState.NEW, bean);

    bean.startRecording(recId);
    JmxHelper.verifyState(recId, RecordingState.RUNNING, bean);

    bean.stopRecording(recId);
    JmxHelper.verifyState(recId, RecordingState.STOPPED, bean);

    bean.closeRecording(recId);
    JmxHelper.verifyNotExists(recId, bean.getRecordings());
}

Example 6

Source File: TestCopyToRunning.java From openjdk-jdk8u with GNU General Public License v2.0

6 votes

public static void main(String[] args) throws Exception {
    FlightRecorderMXBean bean = JmxHelper.getFlighteRecorderMXBean();

    long recId = bean.newRecording();
    bean.startRecording(recId);
    SimpleEventHelper.createEvent(1);

    Path path = Paths.get(".", "my.jfr");
    bean.copyTo(recId, path.toString());

    List<RecordedEvent> events = RecordingFile.readAllEvents(path);
    Asserts.assertTrue(events.iterator().hasNext(), "No events found");
    for (RecordedEvent event : events) {
        System.out.println("Event:" + event);
    }

    Recording recording = getRecording(recId);
    Asserts.assertEquals(recording.getState(), RecordingState.RUNNING, "Recording not in state running");
    bean.stopRecording(recId);
    Asserts.assertEquals(recording.getState(), RecordingState.STOPPED, "Recording not in state stopped");
    bean.closeRecording(recId);
    Asserts.assertEquals(recording.getState(), RecordingState.CLOSED, "Recording not in state closed");
}

Example 7

Source File: TestRecordingState.java From TencentKona-8 with GNU General Public License v2.0

6 votes

public static void main(String[] args) throws Throwable {
    FlightRecorderMXBean bean = JmxHelper.getFlighteRecorderMXBean();

    List<RecordingInfo> preCreateRecordings = bean.getRecordings();
    long recId = bean.newRecording();
    JmxHelper.verifyNotExists(recId, preCreateRecordings);
    JmxHelper.verifyState(recId, RecordingState.NEW, bean);

    bean.startRecording(recId);
    JmxHelper.verifyState(recId, RecordingState.RUNNING, bean);

    bean.stopRecording(recId);
    JmxHelper.verifyState(recId, RecordingState.STOPPED, bean);

    bean.closeRecording(recId);
    JmxHelper.verifyNotExists(recId, bean.getRecordings());
}

Example 8

Source File: TestCopyToRunning.java From dragonwell8_jdk with GNU General Public License v2.0

6 votes

public static void main(String[] args) throws Exception {
    FlightRecorderMXBean bean = JmxHelper.getFlighteRecorderMXBean();

    long recId = bean.newRecording();
    bean.startRecording(recId);
    SimpleEventHelper.createEvent(1);

    Path path = Paths.get(".", "my.jfr");
    bean.copyTo(recId, path.toString());

    List<RecordedEvent> events = RecordingFile.readAllEvents(path);
    Asserts.assertTrue(events.iterator().hasNext(), "No events found");
    for (RecordedEvent event : events) {
        System.out.println("Event:" + event);
    }

    Recording recording = getRecording(recId);
    Asserts.assertEquals(recording.getState(), RecordingState.RUNNING, "Recording not in state running");
    bean.stopRecording(recId);
    Asserts.assertEquals(recording.getState(), RecordingState.STOPPED, "Recording not in state stopped");
    bean.closeRecording(recId);
    Asserts.assertEquals(recording.getState(), RecordingState.CLOSED, "Recording not in state closed");
}

Example 9

Source File: TestCopyToReadOnlyDir.java From openjdk-jdk8u with GNU General Public License v2.0

5 votes

public static void main(String[] args) throws Throwable {
    FlightRecorderMXBean bean = JmxHelper.getFlighteRecorderMXBean();

    long recId = bean.newRecording();
    bean.startRecording(recId);
    SimpleEventHelper.createEvent(1);
    bean.stopRecording(recId);

    Path readOnlyDir = FileHelper.createReadOnlyDir(Paths.get(".", "readOnlyDir"));
    System.out.println("readOnlyDir=" + readOnlyDir.toString());
    Asserts.assertTrue(readOnlyDir.toFile().isDirectory(), "Could not create directory. Test error");
    if (!FileHelper.isReadOnlyPath(readOnlyDir)) {
        System.out.println("Failed to create read-only dir. Maybe running as root? Skipping test");
        return;
    }

    Path file = Paths.get(readOnlyDir.toString(), "my.jfr");
    System.out.println("file=" + file.toString());
    try {
        bean.copyTo(recId, file.toString());
        Asserts.fail("Should be able to dump to read only file");
    } catch (AccessDeniedException e) {
        // ok as expected
    }

    bean.closeRecording(recId);
}

Example 10

Source File: TestRecordingSettings.java From TencentKona-8 with GNU General Public License v2.0

5 votes

public static void main(String[] args) throws Exception {
    Map<String, String> settings = new HashMap<>();
    settings.put("java.exception_throw#enabled", "false");
    settings.put("java.exception_throw#threshold", "2 s");
    settings.put("java.exception_throw#thread", "true");
    settings.put("java.exception_throw#stackTrace", "false");
    settings.put("os.information#enabled", "true");
    settings.put("os.information#period", "400 ms");

    FlightRecorderMXBean bean = JmxHelper.getFlighteRecorderMXBean();
    long recId = bean.newRecording();
    bean.setRecordingSettings(recId, settings);

    // Verify that JMX input and output settings are equal.
    JmxHelper.verifyMapEquals(settings, JmxHelper.getFlighteRecorderMXBean().getRecordingSettings(recId));

    // Verify that settings from Java API is correct.
    Recording recording = null;
    for (Recording r :  FlightRecorder.getFlightRecorder().getRecordings()) {
        if (r.getId() == recId) {
            recording = r;
            break;
        }
    }
    Asserts.assertNotNull(recording, "No Recording with id " + recId);
    JmxHelper.verifyMapEquals(settings, recording.getSettings());

    bean.startRecording(recId);
    bean.stopRecording(recId);
    bean.closeRecording(recId);
}

Example 11

Source File: TestRecordingSettings.java From dragonwell8_jdk with GNU General Public License v2.0

5 votes

public static void main(String[] args) throws Exception {
    Map<String, String> settings = new HashMap<>();
    settings.put("java.exception_throw#enabled", "false");
    settings.put("java.exception_throw#threshold", "2 s");
    settings.put("java.exception_throw#thread", "true");
    settings.put("java.exception_throw#stackTrace", "false");
    settings.put("os.information#enabled", "true");
    settings.put("os.information#period", "400 ms");

    FlightRecorderMXBean bean = JmxHelper.getFlighteRecorderMXBean();
    long recId = bean.newRecording();
    bean.setRecordingSettings(recId, settings);

    // Verify that JMX input and output settings are equal.
    JmxHelper.verifyMapEquals(settings, JmxHelper.getFlighteRecorderMXBean().getRecordingSettings(recId));

    // Verify that settings from Java API is correct.
    Recording recording = null;
    for (Recording r :  FlightRecorder.getFlightRecorder().getRecordings()) {
        if (r.getId() == recId) {
            recording = r;
            break;
        }
    }
    Asserts.assertNotNull(recording, "No Recording with id " + recId);
    JmxHelper.verifyMapEquals(settings, recording.getSettings());

    bean.startRecording(recId);
    bean.stopRecording(recId);
    bean.closeRecording(recId);
}

Example 12

Source File: TestStreamMultiple.java From openjdk-jdk8u with GNU General Public License v2.0

5 votes

public static void main(String[] args) throws Exception {
    FlightRecorderMXBean bean = JmxHelper.getFlighteRecorderMXBean();

    SimpleEventHelper.createEvent(0); // No recordings

    long recIdA = bean.newRecording();

    bean.startRecording(recIdA);
    SimpleEventHelper.createEvent(1); // recA

    long recIdB = bean.newRecording();
    Asserts.assertNotEquals(recIdA, recIdB, "Recording Ids should be unique");
    bean.startRecording(recIdB);
    SimpleEventHelper.createEvent(2); // recA and recB

    bean.stopRecording(recIdA);
    SimpleEventHelper.createEvent(3); // recB

    bean.stopRecording(recIdB);
    SimpleEventHelper.createEvent(4); // No recordings

    // Check recA
    long streamIdA = bean.openStream(recIdA, null);
    List<RecordedEvent> events = JmxHelper.parseStream(streamIdA, bean);
    SimpleEventHelper.verifyContains(events, 1, 2);
    SimpleEventHelper.verifyNotContains(events, 0, 3, 4);
    bean.closeStream(streamIdA);
    // check recB
    long streamIdB = bean.openStream(recIdB, null);
    events = JmxHelper.parseStream(streamIdB, bean);
    SimpleEventHelper.verifyContains(events, 2, 3);
    SimpleEventHelper.verifyNotContains(events, 0, 1, 4);
    bean.closeStream(streamIdB);

    bean.closeRecording(recIdA);
    bean.closeRecording(recIdB);
}

Example 13

Source File: TestClone.java From dragonwell8_jdk with GNU General Public License v2.0

5 votes

public static void main(String[] args) throws Exception {
    FlightRecorderMXBean bean = JmxHelper.getFlighteRecorderMXBean();

    long orgId = bean.newRecording();
    bean.startRecording(orgId);
    SimpleEventHelper.createEvent(1); // Should be in both org and clone

    long cloneId = bean.cloneRecording(orgId, false);
    Asserts.assertNotEquals(orgId, cloneId, "clone id should not be same as org id");

    List<RecordingInfo> recordings = bean.getRecordings();
    JmxHelper.verifyState(orgId, RecordingState.RUNNING, recordings);
    JmxHelper.verifyState(cloneId, RecordingState.RUNNING, recordings);

    bean.stopRecording(orgId);
    recordings = bean.getRecordings();
    JmxHelper.verifyState(orgId, RecordingState.STOPPED, recordings);
    JmxHelper.verifyState(cloneId, RecordingState.RUNNING, recordings);

    SimpleEventHelper.createEvent(2);  // Should only be in clone

    bean.stopRecording(cloneId);
    recordings = bean.getRecordings();
    JmxHelper.verifyState(orgId, RecordingState.STOPPED, recordings);
    JmxHelper.verifyState(cloneId, RecordingState.STOPPED, recordings);

    Path orgPath = Paths.get(".", "org.jfr");
    Path clonePath = Paths.get(".", "clone.jfr");
    bean.copyTo(orgId, orgPath.toString());
    bean.copyTo(cloneId, clonePath.toString());

    verifyEvents(orgPath, 1);
    verifyEvents(clonePath, 1, 2);

    bean.closeRecording(orgId);
    bean.closeRecording(cloneId);
}

Example 14

Source File: TestCopyToReadOnlyDir.java From TencentKona-8 with GNU General Public License v2.0

5 votes

public static void main(String[] args) throws Throwable {
    FlightRecorderMXBean bean = JmxHelper.getFlighteRecorderMXBean();

    long recId = bean.newRecording();
    bean.startRecording(recId);
    SimpleEventHelper.createEvent(1);
    bean.stopRecording(recId);

    Path readOnlyDir = FileHelper.createReadOnlyDir(Paths.get(".", "readOnlyDir"));
    System.out.println("readOnlyDir=" + readOnlyDir.toString());
    Asserts.assertTrue(readOnlyDir.toFile().isDirectory(), "Could not create directory. Test error");
    if (!FileHelper.isReadOnlyPath(readOnlyDir)) {
        System.out.println("Failed to create read-only dir. Maybe running as root? Skipping test");
        return;
    }

    Path file = Paths.get(readOnlyDir.toString(), "my.jfr");
    System.out.println("file=" + file.toString());
    try {
        bean.copyTo(recId, file.toString());
        Asserts.fail("Should be able to dump to read only file");
    } catch (AccessDeniedException e) {
        // ok as expected
    }

    bean.closeRecording(recId);
}

Example 15

Source File: TestNotificationListener.java From TencentKona-8 with GNU General Public License v2.0

5 votes

public static void main(String[] args) throws Throwable {
    ObjectName objectName = new ObjectName(FlightRecorderMXBean.MXBEAN_NAME);
    ManagementFactory.getPlatformMBeanServer().addNotificationListener(objectName, listener, null, null);
    FlightRecorderMXBean bean = ManagementFactory.getPlatformMXBean(FlightRecorderMXBean.class);

    long recId = bean.newRecording();
    bean.startRecording(recId);

    latch.await();
    System.out.println("Completed successfully");
}

Example 16

Source File: TestNotificationListener.java From openjdk-jdk8u with GNU General Public License v2.0

5 votes

public static void main(String[] args) throws Throwable {
    ObjectName objectName = new ObjectName(FlightRecorderMXBean.MXBEAN_NAME);
    ManagementFactory.getPlatformMBeanServer().addNotificationListener(objectName, listener, null, null);
    FlightRecorderMXBean bean = ManagementFactory.getPlatformMXBean(FlightRecorderMXBean.class);

    long recId = bean.newRecording();
    bean.startRecording(recId);

    latch.await();
    System.out.println("Completed successfully");
}

Example 17

Source File: TestMultipleRecordings.java From dragonwell8_jdk with GNU General Public License v2.0

4 votes

private static void startRecording(long recId, FlightRecorderMXBean bean) throws Exception {
    JmxHelper.verifyState(recId, RecordingState.NEW, bean);
    bean.startRecording(recId);
    JmxHelper.verifyState(recId, RecordingState.RUNNING, bean);
}

Example 18

Source File: TestRecordingSettingsMultiple.java From dragonwell8_jdk with GNU General Public License v2.0

4 votes

public static void main(String[] args) throws Exception {
    Map<String, String> settingsA = new HashMap<>();
    settingsA.put("java.exception_throw#enabled", "false");
    settingsA.put("java.exception_throw#threshold", "2 s");
    settingsA.put("java.exception_throw#thread", "true");
    settingsA.put("java.exception_throw#stackTrace", "false");
    settingsA.put("os.information#enabled", "true");
    settingsA.put("os.information#period", "400 ms");

    Map<String, String> settingsB = new HashMap<>();
    settingsB.put("vm/code_sweeper/config#enabled", "true");
    settingsB.put("vm/code_sweeper/config#period", "everyChunk");
    settingsA.put("java.exception_throw#enabled", "true");
    settingsA.put("java.exception_throw#threshold", "6 m");
    settingsB.put("os.information#enabled", "true");
    settingsB.put("os.information#period", "0 ms");

    FlightRecorderMXBean bean = JmxHelper.getFlighteRecorderMXBean();
    long recIdA = bean.newRecording();
    long recIdB = bean.newRecording();
    bean.setRecordingSettings(recIdA, settingsA);
    bean.setRecordingSettings(recIdB, settingsB);

    JmxHelper.verifyMapEquals(settingsA, bean.getRecordingSettings(recIdA));
    JmxHelper.verifyMapEquals(settingsB, bean.getRecordingSettings(recIdB));
    JmxHelper.verifyMapEquals(settingsA, JmxHelper.getJavaRecording(recIdA).getSettings());
    JmxHelper.verifyMapEquals(settingsB, JmxHelper.getJavaRecording(recIdB).getSettings());

    bean.startRecording(recIdA);
    bean.startRecording(recIdB);
    JmxHelper.verifyMapEquals(settingsA, bean.getRecordingSettings(recIdA));
    JmxHelper.verifyMapEquals(settingsB, bean.getRecordingSettings(recIdB));
    JmxHelper.verifyMapEquals(settingsA, JmxHelper.getJavaRecording(recIdA).getSettings());
    JmxHelper.verifyMapEquals(settingsB, JmxHelper.getJavaRecording(recIdB).getSettings());

    bean.stopRecording(recIdA);
    bean.stopRecording(recIdB);
    JmxHelper.verifyMapEquals(settingsA, bean.getRecordingSettings(recIdA));
    JmxHelper.verifyMapEquals(settingsB, bean.getRecordingSettings(recIdB));
    JmxHelper.verifyMapEquals(settingsA, JmxHelper.getJavaRecording(recIdA).getSettings());
    JmxHelper.verifyMapEquals(settingsB, JmxHelper.getJavaRecording(recIdB).getSettings());

    bean.closeRecording(recIdA);
    bean.closeRecording(recIdB);
}

Example 19

Source File: TestRecordingStateInvalid.java From dragonwell8_jdk with GNU General Public License v2.0

4 votes

private static void startRecording(long recId, FlightRecorderMXBean bean) throws Exception {
    JmxHelper.verifyState(recId, RecordingState.NEW, bean);
    bean.startRecording(recId);
    JmxHelper.verifyState(recId, RecordingState.RUNNING, bean);
}

Example 20

Source File: TestRecordingStateInvalid.java From openjdk-jdk8u with GNU General Public License v2.0

4 votes

private static void startRecording(long recId, FlightRecorderMXBean bean) throws Exception {
    JmxHelper.verifyState(recId, RecordingState.NEW, bean);
    bean.startRecording(recId);
    JmxHelper.verifyState(recId, RecordingState.RUNNING, bean);
}