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 org.apache.ambari.server.agent.HeartBeat

        getServiceComponent(SECONDARY_NAMENODE).getServiceComponentHost(DummyHostname1);
    serviceComponentHost1.setState(State.INSTALLED);
    serviceComponentHost2.setState(State.INSTALLED);
    serviceComponentHost3.setState(State.STARTING);


    HeartBeat hb = new HeartBeat();
    hb.setTimestamp(System.currentTimeMillis());
    hb.setResponseId(0);
    hb.setHostname(DummyHostname1);
    hb.setNodeStatus(new HostStatus(Status.HEALTHY, DummyHostStatus));
    hb.setReports(new ArrayList<CommandReport>());
    ArrayList<ComponentStatus> componentStatuses = new ArrayList<ComponentStatus>();
    ComponentStatus componentStatus1 = new ComponentStatus();
    componentStatus1.setClusterName(DummyCluster);
    componentStatus1.setServiceName(HDFS);
    componentStatus1.setMessage(DummyHostStatus);
    componentStatus1.setStatus(State.STARTED.name());
    componentStatus1.setComponentName(DATANODE);
    componentStatuses.add(componentStatus1);
    ComponentStatus componentStatus2 = new ComponentStatus();
    componentStatus2.setClusterName(DummyCluster);
    componentStatus2.setServiceName(HDFS);
    componentStatus2.setMessage(DummyHostStatus);
    componentStatus2.setStatus(State.STARTED.name());
    componentStatus2.setComponentName(SECONDARY_NAMENODE);
    componentStatuses.add(componentStatus2);
    hb.setComponentStatus(componentStatuses);


    handler.handleHeartBeat(hb);
    State componentState1 = serviceComponentHost1.getState();
    State componentState2 = serviceComponentHost2.getState();
    State componentState3 = serviceComponentHost3.getState();

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

            getServiceComponent(NAMENODE).
            getServiceComponentHost(DummyHostname1);
    serviceComponentHost1.setState(State.STOP_FAILED);
    serviceComponentHost2.setState(State.STOP_FAILED);


    HeartBeat hb = new HeartBeat();
    hb.setTimestamp(System.currentTimeMillis());
    hb.setResponseId(0);
    hb.setHostname(DummyHostname1);
    hb.setNodeStatus(new HostStatus(Status.HEALTHY, DummyHostStatus));
    hb.setReports(new ArrayList<CommandReport>());
    ArrayList<ComponentStatus> componentStatuses = new ArrayList<ComponentStatus>();


    ComponentStatus componentStatus1 = new ComponentStatus();
    componentStatus1.setClusterName(DummyCluster);
    componentStatus1.setServiceName(HDFS);
    componentStatus1.setMessage(DummyHostStatus);
    componentStatus1.setStatus(State.STARTED.name());
    componentStatus1.setComponentName(DATANODE);
    componentStatuses.add(componentStatus1);


    ComponentStatus componentStatus2 = new ComponentStatus();
    componentStatus2.setClusterName(DummyCluster);
    componentStatus2.setServiceName(HDFS);
    componentStatus2.setMessage(DummyHostStatus);
    componentStatus2.setStatus(State.INSTALLED.name());
    componentStatus2.setComponentName(NAMENODE);
    componentStatuses.add(componentStatus2);


    hb.setComponentStatus(componentStatuses);


    handler.handleHeartBeat(hb);
    State componentState1 = serviceComponentHost1.getState();
    State componentState2 = serviceComponentHost2.getState();
    assertEquals(State.STARTED, componentState1);

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

    register.setHardwareProfile(hi);
    RegistrationResponse registrationResponse = heartBeatHandler.handleRegistration(register);


    assertEquals("ResponseId should start from zero", 0L, registrationResponse.getResponseId());


    HeartBeat heartBeat = constructHeartBeat("newHost", registrationResponse.getResponseId(), Status.HEALTHY);
    HeartBeatResponse hbResponse = heartBeatHandler.handleHeartBeat(heartBeat);


    assertEquals("responseId was not incremented", 1L, hbResponse.getResponseId());
    assertTrue("Not cached response returned", hbResponse == heartBeatHandler.handleHeartBeat(heartBeat));


    heartBeat.setResponseId(1L);
    hbResponse = heartBeatHandler.handleHeartBeat(heartBeat);
    assertEquals("responseId was not incremented", 2L, hbResponse.getResponseId());
    assertFalse("Agent is flagged for restart", hbResponse.isRestartAgent());


    log.debug(StageUtils.jaxbToString(hbResponse));


    heartBeat.setResponseId(20L);
    hbResponse = heartBeatHandler.handleHeartBeat(heartBeat);
//    assertEquals("responseId was not incremented", 2L, hbResponse.getResponseId());
    assertTrue("Agent is not flagged for restart", hbResponse.isRestartAgent());


    log.debug(StageUtils.jaxbToString(hbResponse));

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

    log.debug(StageUtils.jaxbToString(hbResponse));


  }


  private HeartBeat constructHeartBeat(String hostName, long responseId, Status status) {
    HeartBeat heartBeat = new HeartBeat();
    heartBeat.setHostname(hostName);
    heartBeat.setTimestamp(new Date().getTime());
    heartBeat.setResponseId(responseId);
    HostStatus hs = new HostStatus();
    hs.setCause("");
    hs.setStatus(status);
    heartBeat.setNodeStatus(hs);
    heartBeat.setReports(Collections.<CommandReport>emptyList());


    return heartBeat;
  }

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

    ServiceComponentHost serviceComponentHost1 = clusters.getCluster(DummyCluster).getService(HDFS).
            getServiceComponent(DATANODE).getServiceComponentHost(DummyHostname1);
    serviceComponentHost1.setState(State.INSTALLING);




    HeartBeat hb = new HeartBeat();
    hb.setTimestamp(System.currentTimeMillis());
    hb.setResponseId(0);
    hb.setHostname(DummyHostname1);
    hb.setNodeStatus(new HostStatus(Status.HEALTHY, DummyHostStatus));


    List<CommandReport> reports = new ArrayList<CommandReport>();
    CommandReport cr = new CommandReport();
    cr.setActionId(StageUtils.getActionId(requestId, stageId));
    cr.setTaskId(1);
    cr.setClusterName(DummyCluster);
    cr.setServiceName(HDFS);
    cr.setRole(DATANODE);
    cr.setStatus("IN_PROGRESS");
    cr.setStdErr("none");
    cr.setStdOut("dummy output");
    cr.setExitCode(777);
    reports.add(cr);
    hb.setReports(reports);
    hb.setComponentStatus(new ArrayList<ComponentStatus>());


    handler.handleHeartBeat(hb);
    State componentState1 = serviceComponentHost1.getState();
    assertEquals("Host state should still be installing", State.INSTALLING, componentState1);
  }

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Examples of org.apache.slider.server.appmaster.web.rest.agent.HeartBeat

    reg.setHostname("mockcontainer_1___HBASE_MASTER");
    RegistrationResponse resp = mockAps.handleRegistration(reg);
    Assert.assertEquals(0, resp.getResponseId());
    Assert.assertEquals(RegistrationStatus.OK, resp.getResponseStatus());


    HeartBeat hb = new HeartBeat();
    hb.setResponseId(1);
    hb.setHostname("mockcontainer_1___HBASE_MASTER");
    HeartBeatResponse hbr = mockAps.handleHeartBeat(hb);
    Assert.assertEquals(2, hbr.getResponseId());
  }

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Examples of org.apache.slider.server.appmaster.web.rest.agent.HeartBeat

  public void testProcessConfig() throws Exception {
    InputStream metainfo_1 = new ByteArrayInputStream(metainfo_1_str.getBytes());
    Metainfo metainfo = new MetainfoParser().parse(metainfo_1);
    assert metainfo.getServices().size() == 1;
    AgentProviderService aps = new AgentProviderService();
    HeartBeat hb = new HeartBeat();
    ComponentStatus status = new ComponentStatus();
    status.setClusterName("test");
    status.setComponentName("HBASE_MASTER");
    status.setRoleCommand("GET_CONFIG");
    Map<String, String> hbaseSite = new HashMap<>();
    hbaseSite.put("hbase.master.info.port", "60012");
    hbaseSite.put("c", "d");
    Map<String, Map<String, String>> configs = new HashMap<>();
    configs.put("hbase-site", hbaseSite);
    configs.put("global", hbaseSite);
    status.setConfigs(configs);
    hb.setComponentStatus(new ArrayList<>(Arrays.asList(status)));


    Map<String, Map<String, ClusterNode>> roleClusterNodeMap = new HashMap<>();
    Map<String, ClusterNode> container = new HashMap<>();
    ClusterNode cn1 = new ClusterNode(new MyContainerId(1));
    cn1.host = "HOST1";

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Examples of org.apache.slider.server.appmaster.web.rest.agent.HeartBeat

      resp = mockAps.handleRegistration(reg);
      Assert.assertEquals(0, resp.getResponseId());
      Assert.assertEquals(RegistrationStatus.OK, resp.getResponseStatus());


      // Both issue install command
      HeartBeat hb = new HeartBeat();
      hb.setResponseId(1);
      hb.setHostname("mockcontainer_1___HBASE_MASTER");
      HeartBeatResponse hbr = mockAps.handleHeartBeat(hb);
      Assert.assertEquals(2, hbr.getResponseId());
      Mockito.verify(mockAps, Mockito.times(1)).addInstallCommand(anyString(),
                                                                  anyString(),
                                                                  any(HeartBeatResponse.class),
                                                                  anyString());


      hb = new HeartBeat();
      hb.setResponseId(1);
      hb.setHostname("mockcontainer_1___HBASE_REGIONSERVER");
      hbr = mockAps.handleHeartBeat(hb);
      Assert.assertEquals(2, hbr.getResponseId());
      Mockito.verify(mockAps, Mockito.times(2)).addInstallCommand(anyString(),
                                                                  anyString(),
                                                                  any(HeartBeatResponse.class),
                                                                  anyString());
      // RS succeeds install but does not start
      hb = new HeartBeat();
      hb.setResponseId(2);
      hb.setHostname("mockcontainer_1___HBASE_REGIONSERVER");
      CommandReport cr = new CommandReport();
      cr.setRole("HBASE_REGIONSERVER");
      cr.setRoleCommand("INSTALL");
      cr.setStatus("COMPLETED");
      cr.setFolders(new HashMap<String, String>() {{put("a", "b");}});
      hb.setReports(Arrays.asList(cr));
      hbr = mockAps.handleHeartBeat(hb);
      Assert.assertEquals(3, hbr.getResponseId());
      Mockito.verify(mockAps, Mockito.times(0)).addStartCommand(anyString(),
                                                                  anyString(),
                                                                  any(HeartBeatResponse.class),
                                                                  anyString());
      // RS still does not start
      hb = new HeartBeat();
      hb.setResponseId(3);
      hb.setHostname("mockcontainer_1___HBASE_REGIONSERVER");
      hbr = mockAps.handleHeartBeat(hb);
      Assert.assertEquals(4, hbr.getResponseId());
      Mockito.verify(mockAps, Mockito.times(0)).addStartCommand(anyString(),
                                                                anyString(),
                                                                any(HeartBeatResponse.class),
                                                                anyString());


      // MASTER succeeds install and issues start
      hb = new HeartBeat();
      hb.setResponseId(2);
      hb.setHostname("mockcontainer_1___HBASE_MASTER");
      cr = new CommandReport();
      cr.setRole("HBASE_MASTER");
      cr.setRoleCommand("INSTALL");
      cr.setStatus("COMPLETED");
      Map<String, String> ap = new HashMap<>();
      ap.put("a.port", "10233");
      cr.setAllocatedPorts(ap);
      hb.setReports(Arrays.asList(cr));
      hbr = mockAps.handleHeartBeat(hb);
      Assert.assertEquals(3, hbr.getResponseId());
      Mockito.verify(mockAps, Mockito.times(1)).addStartCommand(anyString(),
                                                                anyString(),
                                                                any(HeartBeatResponse.class),
                                                                anyString());
      Map<String, String> allocatedPorts = mockAps.getAllocatedPorts();
      Assert.assertTrue(allocatedPorts != null);
      Assert.assertTrue(allocatedPorts.size() == 1);
      Assert.assertTrue(allocatedPorts.containsKey("a.port"));


      // RS still does not start
      hb = new HeartBeat();
      hb.setResponseId(4);
      hb.setHostname("mockcontainer_1___HBASE_REGIONSERVER");
      hbr = mockAps.handleHeartBeat(hb);
      Assert.assertEquals(5, hbr.getResponseId());
      Mockito.verify(mockAps, Mockito.times(1)).addStartCommand(anyString(),
                                                                anyString(),
                                                                any(HeartBeatResponse.class),
                                                                anyString());
      // MASTER succeeds start
      hb = new HeartBeat();
      hb.setResponseId(3);
      hb.setHostname("mockcontainer_1___HBASE_MASTER");
      cr = new CommandReport();
      cr.setRole("HBASE_MASTER");
      cr.setRoleCommand("START");
      cr.setStatus("COMPLETED");
      hb.setReports(Arrays.asList(cr));
      mockAps.handleHeartBeat(hb);
      Mockito.verify(mockAps, Mockito.times(1)).addGetConfigCommand(anyString(),
                                                                anyString(),
                                                                any(HeartBeatResponse.class));


      // RS starts now
      hb = new HeartBeat();
      hb.setResponseId(5);
      hb.setHostname("mockcontainer_1___HBASE_REGIONSERVER");
      hbr = mockAps.handleHeartBeat(hb);
      Assert.assertEquals(6, hbr.getResponseId());
      Mockito.verify(mockAps, Mockito.times(2)).addStartCommand(anyString(),
                                                                anyString(),
                                                                any(HeartBeatResponse.class),

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Examples of org.apache.slider.server.appmaster.web.rest.agent.HeartBeat

    reg.setHostname("mockcontainer_1___HBASE_MASTER");
    RegistrationResponse resp = mockAps.handleRegistration(reg);
    Assert.assertEquals(0, resp.getResponseId());
    Assert.assertEquals(RegistrationStatus.OK, resp.getResponseStatus());


    HeartBeat hb = new HeartBeat();
    hb.setResponseId(1);
    hb.setHostname("mockcontainer_1___HBASE_MASTER");
    HeartBeatResponse hbr = mockAps.handleHeartBeat(hb);
    Assert.assertEquals(2, hbr.getResponseId());
  }

View Full Code Here

Examples of org.apache.slider.server.appmaster.web.rest.agent.HeartBeat

  public void testProcessConfig() throws Exception {
    InputStream metainfo_1 = new ByteArrayInputStream(metainfo_1_str.getBytes());
    Metainfo metainfo = new MetainfoParser().parse(metainfo_1);
    Assert.assertNotNull(metainfo.getApplication());
    AgentProviderService aps = new AgentProviderService();
    HeartBeat hb = new HeartBeat();
    ComponentStatus status = new ComponentStatus();
    status.setClusterName("test");
    status.setComponentName("HBASE_MASTER");
    status.setRoleCommand("GET_CONFIG");
    Map<String, String> hbaseSite = new HashMap<>();
    hbaseSite.put("hbase.master.info.port", "60012");
    hbaseSite.put("c", "d");
    Map<String, Map<String, String>> configs = new HashMap<>();
    configs.put("hbase-site", hbaseSite);
    configs.put("global", hbaseSite);
    status.setConfigs(configs);
    hb.setComponentStatus(new ArrayList<>(Arrays.asList(status)));


    Map<String, Map<String, ClusterNode>> roleClusterNodeMap = new HashMap<>();
    Map<String, ClusterNode> container = new HashMap<>();
    ClusterNode cn1 = new ClusterNode(new MyContainerId(1));
    cn1.host = "HOST1";

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