Package org.apache.helix.mock.participant

Examples of org.apache.helix.mock.participant.MockParticipant

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    MockParticipant[] participants = new MockParticipant[n];
    for (int i = 0; i < n; i++)
    {
      String instanceName = "localhost_" + (12918 + i);

      participants[i] = new MockParticipant(clusterName, instanceName, ZK_ADDR, null);
      participants[i].syncStart();
    }

    boolean result =
        ClusterStateVerifier.verifyByZkCallback(new BestPossAndExtViewZkVerifier(ZK_ADDR,
                                                                                 clusterName));
    Assert.assertTrue(result);
   
    // stop all participants
    Thread.sleep(1000);
    for (int i = 0; i < n; i++)
    {
      participants[i].syncStop();
    }
   
    // enable batch message
    ZKHelixDataAccessor accessor = new ZKHelixDataAccessor(clusterName, new ZkBaseDataAccessor<ZNRecord>(_gZkClient));
    Builder keyBuilder = accessor.keyBuilder();
    IdealState idealState = accessor.getProperty(keyBuilder.idealStates("TestDB0"));
    idealState.setBatchMessageMode(true);
    accessor.setProperty(keyBuilder.idealStates("TestDB0"), idealState);

    // registry a message listener so we know how many message generated
    TestZkChildListener listener = new TestZkChildListener();
    _gZkClient.subscribeChildChanges(keyBuilder.messages("localhost_12918").getPath(), listener);

    // restart all participants
    for (int i = 0; i < n; i++)
    {
      String instanceName = "localhost_" + (12918 + i);

      participants[i] = new MockParticipant(clusterName, instanceName, ZK_ADDR, null);
      participants[i].syncStart();
    }
   
    result =
        ClusterStateVerifier.verifyByZkCallback(new BestPossAndExtViewZkVerifier(ZK_ADDR,
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        if (i == 1)
        {
          Map<String, Set<String>> errPartitions = new HashMap<String, Set<String>>();
          errPartitions.put("SLAVE-MASTER", TestHelper.setOf("TestDB0_4"));
          participants[i] =
              new MockParticipant(clusterName,
                                  instanceName,
                                  ZK_ADDR,
                                  new ErrTransition(errPartitions));
        }
        else
        {
          participants[i] = new MockParticipant(clusterName, instanceName, ZK_ADDR);
        }
        participants[i].syncStart();
      }

      Map<String, Map<String, String>> errStates =
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    MockParticipant[] participants = new MockParticipant[n];
    for (int i = 0; i < n; i++)
    {
      String instanceName = "localhost_" + (12918 + i);

      participants[i] = new MockParticipant(clusterName, instanceName, ZK_ADDR, null);
      participants[i].syncStart();
    }
   
    // change localhost_12918 version to 0.5, so batch-message-mode will be ignored
    LiveInstance liveInstance = accessor.getProperty(keyBuilder.liveInstance("localhost_12918"));
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    final String firstClusterName = clusterNamePrefix + "0_0";
    for (int i = 0; i < n; i++)
    {
      String instanceName = "localhost0_" + (12918 + i);
      participants[i] =
          new MockParticipant(firstClusterName, instanceName, ZK_ADDR, null);
      participants[i].syncStart();
    }

    result =
        ClusterStateVerifier.verifyByZkCallback(new BestPossAndExtViewZkVerifier(ZK_ADDR,
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      MockParticipant[] participants = new MockParticipant[n];
      for (int i = 0; i < n; i++)
      {
        String instanceName = "localhost_" + (12918 + i);

        participants[i] = new MockParticipant(clusterName, instanceName, ZK_ADDR, null);
        participants[i].syncStart();
      }

      ClusterController controller =
          new ClusterController(clusterName, "controller_0", ZK_ADDR);
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      String instanceName = "localhost_" + (12918 + i);

      if (i == 0)
      {
        participants[i] =
            new MockParticipant(clusterName,
                                instanceName,
                                ZK_ADDR,
                                new ErrTransition(errPartitions));
      }
      else
      {
        participants[i] = new MockParticipant(clusterName, instanceName, ZK_ADDR);
      }
      participants[i].syncStart();
    }

    // verify cluster
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      ZkHelixTestManager manager =
          new ZkHelixTestManager(clusterName,
                                 instanceName,
                                 InstanceType.PARTICIPANT,
                                 ZK_ADDR);
      participants[i] = new MockParticipant(manager, new SessionExpiryTransition());
      participants[i].syncStart();
    }

    boolean result =
        ClusterStateVerifier.verifyByZkCallback(new BestPossAndExtViewZkVerifier(ZK_ADDR,
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          {
            put("SLAVE-MASTER", TestHelper.setOf("TestDB0_4"));
          }
        };
        participants[i] =
            new MockParticipant(clusterName,
                                instanceName,
                                ZK_ADDR,
                                new ErrTransition(errPartitions));
      }
      else
      {
        participants[i] = new MockParticipant(clusterName, instanceName, ZK_ADDR);
      }
      participants[i].syncStart();
      // new Thread(participants[i]).start();
    }

    Map<String, Map<String, String>> errStates =
        new HashMap<String, Map<String, String>>();
    errStates.put("TestDB0", new HashMap<String, String>());
    errStates.get("TestDB0").put("TestDB0_4", "localhost_12918");
    boolean result =
        ClusterStateVerifier.verifyByPolling(new ClusterStateVerifier.BestPossAndExtViewZkVerifier(ZK_ADDR,
                                                                                          clusterName,
                                                                                          errStates));
    Assert.assertTrue(result);

    Map<String, Set<String>> errorStateMap = new HashMap<String, Set<String>>()
    {
      {
        put("TestDB0_4", TestHelper.setOf("localhost_12918"));
      }
    };

    // verify "TestDB0_0", "localhost_12918" is in ERROR state
    TestHelper.verifyState(clusterName, ZK_ADDR, errorStateMap, "ERROR");

    // disable a partition on a node with error state
    tool.enablePartition(false, clusterName, "localhost_12918", "TestDB0", Arrays.asList("TestDB0_4"));

    result =
        ClusterStateVerifier.verifyByPolling(new ClusterStateVerifier.BestPossAndExtViewZkVerifier(ZK_ADDR,
                                                                                          clusterName,
                                                                                          errStates));
    Assert.assertTrue(result);

    TestHelper.verifyState(clusterName, ZK_ADDR, errorStateMap, "ERROR");

    // disable a node with error state
    tool.enableInstance(clusterName, "localhost_12918", false);

    result =
        ClusterStateVerifier.verifyByPolling(new ClusterStateVerifier.BestPossAndExtViewZkVerifier(ZK_ADDR,
                                                                                          clusterName,
                                                                                          errStates));
    Assert.assertTrue(result);

    // make sure after restart stale ERROR state is gone
    tool.enablePartition(true, clusterName, "localhost_12918", "TestDB0", Arrays.asList("TestDB0_4"));
    tool.enableInstance(clusterName, "localhost_12918", true);

    participants[0].syncStop();
    result =
        ClusterStateVerifier.verifyByPolling(new ClusterStateVerifier.BestPossAndExtViewZkVerifier(ZK_ADDR,
                                                                                          clusterName));
    Assert.assertTrue(result);
    participants[0] = new MockParticipant(clusterName, "localhost_12918", ZK_ADDR);
    new Thread(participants[0]).start();

    result =
        ClusterStateVerifier.verifyByPolling(new ClusterStateVerifier.BestPossAndExtViewZkVerifier(ZK_ADDR,
                                                                                          clusterName));
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    // start participants
    for (int i = 0; i < n; i++)
    {
      String instanceName = "localhost_" + (12918 + i);

      participants[i] = new MockParticipant(clusterName, instanceName, ZK_ADDR, null);
      participants[i].syncStart();
    }

    boolean result =
        ClusterStateVerifier.verifyByZkCallback(new BestPossAndExtViewZkVerifier(ZK_ADDR,
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      String instanceName = "localhost_" + (12918 + i);

      if (i == 0)
      {
        participants[i] =
            new MockParticipant(clusterName,
                                instanceName,
                                ZK_ADDR,
                                new ErrTransition(errPartitions));
      }
      else
      {
        participants[i] = new MockParticipant(clusterName, instanceName, ZK_ADDR);
      }
      participants[i].syncStart();
    }

    // verify cluster
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