Package org.apache.helix.manager.zk

Examples of org.apache.helix.manager.zk.ZKHelixAdmin.enableInstance()

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    InstanceConfig config = new InstanceConfig("host1_9999");
    config.setHostName("host1");
    config.setPort("9999");
    tool.addInstance(clusterName, config);
    tool.enableInstance(clusterName, "host1_9999", true);
    String path = PropertyPathConfig.getPath(PropertyType.INSTANCES,
        clusterName, "host1_9999");
    AssertJUnit.assertTrue(_gZkClient.exists(path));

    try
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    {
      // OK
    }
    try
    {
      tool.enableInstance(clusterName, "host1_9999", false);
      Assert.fail("should fail if enable a non-existent instance");
    } catch (HelixException e)
    {
      // OK
    }
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    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));
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                                                                                          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));
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    boolean result = ClusterStateVerifier.verifyByPolling(
        new ClusterStateVerifier.BestPossAndExtViewZkVerifier(ZK_ADDR, CLUSTER_NAME));
    Assert.assertTrue(result);

    ZKHelixAdmin tool = new ZKHelixAdmin(_zkClient);
    tool.enableInstance(CLUSTER_NAME, PARTICIPANT_PREFIX + "_12918", true);
   
    result = ClusterStateVerifier.verifyByPolling(
        new ClusterStateVerifier.BestPossAndExtViewZkVerifier(ZK_ADDR, CLUSTER_NAME));
    Assert.assertTrue(result);
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    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);
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    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));
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        ClusterStateVerifier.verifyByPolling(new ClusterStateVerifier.BestPossAndExtViewZkVerifier(
            ZK_ADDR, CLUSTER_NAME));
    Assert.assertTrue(result);

    ZKHelixAdmin tool = new ZKHelixAdmin(_gZkClient);
    tool.enableInstance(CLUSTER_NAME, PARTICIPANT_PREFIX + "_12918", true);

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

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

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

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