Examples of Heartbeat

com.dianping.cat.message.Heartbeat

Heartbeat is used to log data that happens in a regular intervals, for example once per second, such as system load, CPU percentage, memory usage, thread pool statistics, cache hit/miss rate, service manifest etc., and even some configuration could be carried by Heartbeat. There could be some good use cases, for example health checker and load balancer, that make good use of it.

Heartbeat should never be used per request since the request is not regular predictable, instead it could be logged in a daemon background thread, or something like a Timer.

All CAT message will be constructed as a message tree and send to back-end for further analysis, and for monitoring. Only Transaction can be a tree node, all other message will be the tree leaf.　The transaction without other messages nested is an atomic transaction.
@author Frankie Wu
com.opengamma.livedata.msg.Heartbeat
com.sirenian.hellbound.domain.glyph.Heartbeat
com.subhajit.processmanager.agent.heartbeat.Heartbeat
com.wordnik.swaggersocket.protocol.Heartbeat
example.chat.msgtask.HearTbeat

心跳消息任务

@author 胡玮@ritsky
org.apache.ambari.server.agent.HeartBeat
Data model for Ambari Agent to send heartbeat to Ambari Server.
org.apache.slider.server.appmaster.web.rest.agent.HeartBeat
Data model for agent heartbeat for server (ambari or app master).
org.apache.tapestry.services.Heartbeat
Allow for deferred execution of logic, useful when trying to get multiple components to coordinate behavior. A component may add a command to be executed " {@link #end() at the end of the heartbeat}". The classic example of this is a Label and the field it labels; since we don't know which order the two will render, we can't tell if the field's id is correct until after both have rendered.
org.apache.tapestry5.services.Heartbeat
Allows for deferred execution of logic, useful when trying to get multiple components to coordinate behavior. A component may add a command to be executed " {@linkplain #end() at the end of the heartbeat}". The classic example of this is a Label and the field it labels; since we don't know which order the two will render, we can't tell if the field's id is correct until after both have rendered.
The Heartbeat is injected into components via the {@link org.apache.tapestry5.annotations.Environmental} annotation.
org.squirrelframework.foundation.component.Heartbeat
Allows for deferred execution of logic, useful when trying to get multiple components to coordinate behavior. A component may add a command to be executed " {@linkplain #execute() at the end of the heartbeat}". Also, Heartbeats can be nested.

Examples of com.dianping.cat.message.Heartbeat

  }


  @Test
  public void testHeartbeat() {
    long timestamp = 1325489621987L;
    Heartbeat heartbeat = newHeartbeat("type", "name", timestamp, "0", "here is the data.");


    check(heartbeat, "H2012-01-02 15:33:41.987\ttype\tname\t0\there is the data.\t\n");
  }

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Examples of com.dianping.cat.message.Heartbeat

    event.complete();
  }


  @Override
  public void logHeartbeat(String type, String name, String status, String nameValuePairs) {
    Heartbeat heartbeat = newHeartbeat(type, name);


    heartbeat.addData(nameValuePairs);
    heartbeat.setStatus(status);
    heartbeat.complete();
  }

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Examples of com.dianping.cat.message.Heartbeat

    while (m_active) {
      long start = MilliSecondTimer.currentTimeMillis();


      if (m_manager.isCatEnabled()) {
        Transaction t = cat.newTransaction("System", "Status");
        Heartbeat h = cat.newHeartbeat("Heartbeat", m_ipAddress);
        StatusInfo status = new StatusInfo();


        t.addData("dumpLocked", m_manager.isDumpLocked());
        try {
          StatusInfoCollector statusInfoCollector = new StatusInfoCollector(m_statistics, m_jars);


          status.accept(statusInfoCollector.setDumpLocked(m_manager.isDumpLocked()));


          buildExtensionData(status);
          h.addData(status.toString());
          h.setStatus(Message.SUCCESS);
        } catch (Throwable e) {
          h.setStatus(e);
          cat.logError(e);
        } finally {
          h.complete();
        }
        t.setStatus(Message.SUCCESS);
        t.complete();
      }
      long elapsed = MilliSecondTimer.currentTimeMillis() - start;

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Examples of com.dianping.cat.message.Heartbeat

  }


  @Test
  public void testHeartbeat() throws Exception {
    long timestamp = 1325489621987L;
    Heartbeat heartbeat = newHeartbeat("type", "name", timestamp, "0", "here is the data.");


    MessageTree tree = new DefaultMessageTree();
    tree.setMessage(heartbeat);
    check(tree, heartbeat,
          "<tr><td>H15:33:41.987</td><td>type</td><td>name</td><td>&nbsp;</td><td>here is the data.</td></tr>\r\n");

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Examples of com.opengamma.livedata.msg.Heartbeat


  // LiveDataHeartbeat


  @Override
  public Collection<LiveDataSpecification> heartbeat(final Collection<LiveDataSpecification> activeSubscriptions) {
    Heartbeat heartbeat = new Heartbeat(activeSubscriptions);
    FudgeMsg heartbeatMsg = heartbeat.toFudgeMsg(new FudgeSerializer(getMessageSender().getFudgeContext()));
    getMessageSender().send(heartbeatMsg);
    return null;
  }

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Examples of com.sirenian.hellbound.domain.glyph.Heartbeat

        
    verifyMocks();
  }
  
  public void shouldCreateANewGlyphWithListenersToItWhenGameIsStarted() throws Exception {
    Heartbeat heartbeat = new StubHeartbeat();
    
    Mock glyphFactoryMock = mock(GlyphFactory.class);
    Mock glyphListener = mock(GlyphListener.class);
    
    glyphFactoryMock.expects("nextGlyph")

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Examples of com.subhajit.processmanager.agent.heartbeat.Heartbeat

        public void run() {
          try {
            final IHeartbeatRepository repository = (IHeartbeatRepository) Class
                .forName(heartbeatRepositoryClassName)
                .getConstructor(String.class).newInstance(uid);
            final IHeartbeat heartbeat = new Heartbeat(System
                .currentTimeMillis(), uid, jmxUrl0);
            while (true) {
              repository.update(heartbeat);
              Thread.sleep(IHeartbeat.INTERVAL);
            }

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Examples of com.wordnik.swaggersocket.protocol.Heartbeat


    protected final Object wrapMessage(AtmosphereResponse res, String message) {


        if (message != null && message.startsWith("heartbeat-")) {
            String identity = (String) getContextValue(res.request(), IDENTITY);
            return new Heartbeat(String.valueOf(System.nanoTime()), identity);
        } else {
            Request swaggerSocketRequest = lookupRequest(res.request());
            Response.Builder builder = new Response.Builder();


            builder.body(message)

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Examples of example.chat.msgtask.HearTbeat

      break;
    case ChatCommandId.C_ADDFRIEND_REQ:
      new AddFriend(session,inMsg).run();
      break;
    case ChatCommandId.C_HEARTBEAT_REQ:
      new HearTbeat(session,inMsg).run();
      break;
    case ChatCommandId.C_SEND_MSG:
      new SendMessage(session,inMsg).run();
      break;
    }

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Examples of org.apache.ambari.server.agent.HeartBeat


    ExecutionCommand execCmd = new ExecutionCommand();
    execCmd.setCommandId("2-34");
    execCmd.setHostname(DummyHostname1);
    aq.enqueue(DummyHostname1, new ExecutionCommand());
    HeartBeat hb = new HeartBeat();
    hb.setResponseId(0);
    hb.setNodeStatus(new HostStatus(Status.HEALTHY, DummyHostStatus));
    hb.setHostname(DummyHostname1);


    handler.handleHeartBeat(hb);
    assertEquals(HostState.HEALTHY, hostObject.getState());
    assertEquals(0, aq.dequeueAll(DummyHostname1).size());
  }

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