Package org.apache.helix.manager.zk

Examples of org.apache.helix.manager.zk.ZKHelixDataAccessor

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  public void verifyReplication(ZkClient zkClient,
                                String clusterName,
                                String resource,
                                int repl)
  {
    ZKHelixDataAccessor accessor =
        new ZKHelixDataAccessor(clusterName, new ZkBaseDataAccessor(zkClient));
    Builder keyBuilder = accessor.keyBuilder();

    IdealState idealState = accessor.getProperty(keyBuilder.idealStates(resource));
    for (String partitionName : idealState.getPartitionSet())
    {
      if (idealState.getIdealStateMode() == IdealStateModeProperty.AUTO)
      {
        AssertJUnit.assertEquals(repl, idealState.getPreferenceList(partitionName).size());
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    LOG.info("After session expiry sessionId = " + oldZookeeper.getSessionId());
  }

  protected void setupStateModel(String clusterName)
  {
    ZKHelixDataAccessor accessor =
        new ZKHelixDataAccessor(clusterName, new ZkBaseDataAccessor(_gZkClient));
    Builder keyBuilder = accessor.keyBuilder();

    StateModelConfigGenerator generator = new StateModelConfigGenerator();
    StateModelDefinition masterSlave =
        new StateModelDefinition(generator.generateConfigForMasterSlave());
    accessor.setProperty(keyBuilder.stateModelDef(masterSlave.getId()), masterSlave);

    StateModelDefinition leaderStandby =
        new StateModelDefinition(generator.generateConfigForLeaderStandby());
    accessor.setProperty(keyBuilder.stateModelDef(leaderStandby.getId()), leaderStandby);

    StateModelDefinition onlineOffline =
        new StateModelDefinition(generator.generateConfigForOnlineOffline());
    accessor.setProperty(keyBuilder.stateModelDef(onlineOffline.getId()), onlineOffline);

  }
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                                             int[] nodes,
                                             String[] resources,
                                             int partitions,
                                             int replicas)
  {
    ZKHelixDataAccessor accessor =
        new ZKHelixDataAccessor(clusterName, new ZkBaseDataAccessor(_gZkClient));
    Builder keyBuilder = accessor.keyBuilder();

    List<IdealState> idealStates = new ArrayList<IdealState>();
    List<String> instances = new ArrayList<String>();
    for (int i : nodes)
    {
      instances.add("localhost_" + i);
    }

    for (String resourceName : resources)
    {
      IdealState idealState = new IdealState(resourceName);
      for (int p = 0; p < partitions; p++)
      {
        List<String> value = new ArrayList<String>();
        for (int r = 0; r < replicas; r++)
        {
          int n = nodes[(p + r) % nodes.length];
          value.add("localhost_" + n);
        }
        idealState.getRecord().setListField(resourceName + "_" + p, value);
      }

      idealState.setReplicas(Integer.toString(replicas));
      idealState.setStateModelDefRef("MasterSlave");
      idealState.setIdealStateMode(IdealStateModeProperty.AUTO.toString());
      idealState.setNumPartitions(partitions);
      idealStates.add(idealState);

      // System.out.println(idealState);
      accessor.setProperty(keyBuilder.idealStates(resourceName), idealState);
    }
    return idealStates;
  }
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  {
    ZkClient zkClient = new ZkClient("localhost:2181");
    zkClient.waitUntilConnected(10, TimeUnit.SECONDS);
    BaseDataAccessor baseDataAccessor = new ZkBaseDataAccessor(zkClient);
    HelixDataAccessor accessor =
        new ZKHelixDataAccessor("test-cluster", baseDataAccessor);
    Builder builder = new PropertyKey.Builder("test-cluster");
    HelixProperty value = new IdealState("test-resource");
    accessor.createProperty(builder.idealStates("test-resource"), value);
  }
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  }

  public void createExternalView(List<String> instanceNames, int partitions,
      int replicas, String dbName, long randomSeed)
  {
    ZKHelixDataAccessor accessor = new ZKHelixDataAccessor(clusterName, new ZkBaseDataAccessor(client));
    Builder keyBuilder = accessor.keyBuilder();

    ExternalView externalView = new ExternalView(computeRoutingTable(instanceNames, partitions,
                                                                     replicas, dbName, randomSeed));

    accessor.setProperty(keyBuilder.externalView(dbName), externalView);
  }
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    return idealStates;
  }

  protected void setupLiveInstances(String clusterName, int[] liveInstances)
  {
    ZKHelixDataAccessor accessor =
        new ZKHelixDataAccessor(clusterName, new ZkBaseDataAccessor(_gZkClient));
    Builder keyBuilder = accessor.keyBuilder();

    for (int i = 0; i < liveInstances.length; i++)
    {
      String instance = "localhost_" + liveInstances[i];
      LiveInstance liveInstance = new LiveInstance(instance);
      liveInstance.setSessionId("session_" + liveInstances[i]);
      liveInstance.setHelixVersion("0.0.0");
      accessor.setProperty(keyBuilder.liveInstance(instance), liveInstance);
    }
  }
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        ClusterStateVerifier.verifyByZkCallback(new BestPossAndExtViewZkVerifier(ZK_ADDR,
                                                                                 clusterName));
    Assert.assertTrue(result);

    // other verifications go here
    ZKHelixDataAccessor accessor = new ZKHelixDataAccessor(clusterName, new ZkBaseDataAccessor<ZNRecord>(_gZkClient));
    Builder keyBuilder = accessor.keyBuilder();

    for (int i = 0; i < n; i++)
    {
      String instance = "localhost_" + (12918 + i);
      ZNRecord record = null;
      for(int j = 0; j < 10; j++)
      {
        record =
            accessor.getProperty(keyBuilder.healthReport(instance, "mockAlerts")).getRecord();
        if(record.getId().equals("mockAlerts4"))
        {
          break;
        }
        else
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    new HealthStatsAggregationTask(cmResult._manager).run();
    //sleep for a few seconds to give stats stage time to trigger
    Thread.sleep(3000);

    // other verifications go here
    ZKHelixDataAccessor accessor = new ZKHelixDataAccessor(clusterName, new ZkBaseDataAccessor(_zkClient));
    Builder keyBuilder = accessor.keyBuilder();
    //for (int i = 0; i < 1; i++) //change 1 back to 5
    //{
      //String instance = "localhost_" + (12918 + i);
      String instance = "localhost_12918";
      ZNRecord record = accessor.getProperty(keyBuilder.alertStatus()).getRecord();
      Map<String, Map<String,String>> recMap = record.getMapFields();
      Set<String> keySet = recMap.keySet();
      Map<String,String> alertStatusMap = recMap.get(_alertStatusStr);
      String val = alertStatusMap.get(AlertValueAndStatus.VALUE_NAME);
      boolean fired = Boolean.parseBoolean(alertStatusMap.get(AlertValueAndStatus.FIRED_NAME));
      Assert.assertEquals(Double.parseDouble(val), Double.parseDouble("15.1"));
      Assert.assertTrue(fired);
     
      // Verify Alert history from ZK
      ZNRecord alertHistory = accessor.getProperty(keyBuilder.alertHistory()).getRecord();
     
      String deltakey = (String) (alertHistory.getMapFields().keySet().toArray()[0]);
      Map<String, String> delta = alertHistory.getMapField(deltakey);
      Assert.assertTrue(delta.size() == 1);
      Assert.assertTrue(delta.get("EXP(decay(1.0)(localhost_12918.RestQueryStats@DBName#TestDB0.latency))CMP(GREATER)CON(10)--(%)").equals("ON"));
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    new HealthStatsAggregationTask(cmResult._manager).run();
    //sleep for a few seconds to give stats stage time to trigger
    Thread.sleep(1000);

    // other verifications go here
    ZKHelixDataAccessor accessor = new ZKHelixDataAccessor(clusterName, new ZkBaseDataAccessor(_zkClient));
    Builder keyBuilder = accessor.keyBuilder();
    ZNRecord record = accessor.getProperty(keyBuilder.alertStatus()).getRecord();
    Map<String, Map<String,String>> recMap = record.getMapFields();
    for(int i = 0; i < 2; i++)
    {
      String alertString = "(localhost_"+(12944 + i)+".RestQueryStats@DBName=TestDB0.latency)";
      Map<String,String> alertStatusMap = recMap.get(alertwildcard+" : " + alertString);
      String val = alertStatusMap.get(AlertValueAndStatus.VALUE_NAME);
      boolean fired = Boolean.parseBoolean(alertStatusMap.get(AlertValueAndStatus.FIRED_NAME));
      Assert.assertEquals(Double.parseDouble(val), (double)i * 5 + 0.1);
      Assert.assertFalse(fired);
    }
    for(int i = 2; i < 5; i++)
    {
      String alertString = "(localhost_"+(12944 + i)+".RestQueryStats@DBName=TestDB0.latency)";
      Map<String,String> alertStatusMap = recMap.get(alertwildcard+" : " + alertString);
      String val = alertStatusMap.get(AlertValueAndStatus.VALUE_NAME);
      boolean fired = Boolean.parseBoolean(alertStatusMap.get(AlertValueAndStatus.FIRED_NAME));
      Assert.assertEquals(Double.parseDouble(val), (double)i * 5 + 0.1);
      Assert.assertTrue(fired);
    }
    ZNRecord alertHistory = accessor.getProperty(keyBuilder.alertHistory()).getRecord();
   
    String deltakey = (String) (alertHistory.getMapFields().keySet().toArray()[0]);
    Map<String, String> delta = alertHistory.getMapField(deltakey);
    Assert.assertEquals(delta.size() , 3);
    for(int i = 2; i < 5; i++)
    {
      String alertString = "(localhost_"+(12944 + i)+".RestQueryStats@DBName#TestDB0.latency)GREATER(10)";
      Assert.assertTrue(delta.get(alertString).equals("ON"));
    }
   
    // Drop and add another alert
    _setupTool.getClusterManagementTool().dropAlert(clusterName, alertwildcard);
    alertwildcard = "EXP(decay(1.0)(localhost*.RestQueryStats@DBName=TestDB0.latency))CMP(GREATER)CON(15)";
    _setupTool.getClusterManagementTool().addAlert(clusterName, alertwildcard);
    new HealthStatsAggregationTask(cmResult._manager).run();
    Thread.sleep(1000);
   
    record = accessor.getProperty(keyBuilder.alertStatus()).getRecord();
    recMap = record.getMapFields();
    for(int i = 0; i < 3; i++)
    {
      String alertString = "(localhost_"+(12944 + i)+".RestQueryStats@DBName=TestDB0.latency)";
      Map<String,String> alertStatusMap = recMap.get(alertwildcard+" : " + alertString);
      String val = alertStatusMap.get(AlertValueAndStatus.VALUE_NAME);
      boolean fired = Boolean.parseBoolean(alertStatusMap.get(AlertValueAndStatus.FIRED_NAME));
      Assert.assertEquals(Double.parseDouble(val), (double)i * 5 + 0.1);
      Assert.assertFalse(fired);
    }
    for(int i = 3; i < 5; i++)
    {
      String alertString = "(localhost_"+(12944 + i)+".RestQueryStats@DBName=TestDB0.latency)";
      Map<String,String> alertStatusMap = recMap.get(alertwildcard+" : " + alertString);
      String val = alertStatusMap.get(AlertValueAndStatus.VALUE_NAME);
      boolean fired = Boolean.parseBoolean(alertStatusMap.get(AlertValueAndStatus.FIRED_NAME));
      Assert.assertEquals(Double.parseDouble(val), (double)i * 5 + 0.1);
      Assert.assertTrue(fired);
    }
    alertHistory = accessor.getProperty(keyBuilder.alertHistory()).getRecord();
   
    deltakey = (String) (alertHistory.getMapFields().keySet().toArray()[1]);
    delta = alertHistory.getMapField(deltakey);
    Assert.assertTrue(delta.size() == 2);
    for(int i = 3; i < 5; i++)
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    new HealthStatsAggregationTask(cmResult._manager).run();

    //sleep for a few seconds to give stats stage time to trigger and for bean to trigger
    Thread.sleep(3000);

    ZKHelixDataAccessor accessor = new ZKHelixDataAccessor(clusterName, new ZkBaseDataAccessor(_zkClient));
    Builder keyBuilder = accessor.keyBuilder();

    // for (int i = 0; i < 1; i++) //change 1 back to 5
    // {
    // String instance = "localhost_" + (12918 + i);
    // String instance = "localhost_12918";
    ZNRecord record = accessor.getProperty(keyBuilder.alertStatus()).getRecord();
    Map<String, Map<String, String>> recMap = record.getMapFields();
    Set<String> keySet = recMap.keySet();
    Map<String, String> alertStatusMap = recMap.get(_alertStatusStr);
    String val = alertStatusMap.get(AlertValueAndStatus.VALUE_NAME);
    boolean fired = Boolean.parseBoolean(alertStatusMap.get(AlertValueAndStatus.FIRED_NAME));
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Related Classes of org.apache.helix.manager.zk.ZKHelixDataAccessor

  • org.apache.helix.api.accessor.TestAccessorRecreate
  • org.apache.helix.api.accessor.TestAtomicAccessors
  • org.apache.helix.api.TestNewStages
  • org.apache.helix.controller.restlet.ZkPropertyTransferClient
  • org.apache.helix.controller.restlet.ZNRecordUpdate
  • org.apache.helix.controller.stages.TestMessageThrottleStage
  • org.apache.helix.controller.stages.TestRebalancePipeline
  • org.apache.helix.controller.stages.TestStagesWithLogicalAccessors
  • org.apache.helix.healthcheck.TestAddDropAlert
  • org.apache.helix.healthcheck.TestDummyAlerts
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