Package org.apache.helix

Examples of org.apache.helix.HelixAdmin.enableInstance()

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      Assert.fail("No leader was ever elected!");
    }
    String leaderId = leader.getId();
    String standbyId = (leaderId.equals("controller_0")) ? "controller_1" : "controller_0";
    HelixAdmin admin = setupTool.getClusterManagementTool();
    admin.enableInstance(controllerCluster, leaderId, false);

    // Stop a participant to make sure that the leader election worked
    Thread.sleep(500);
    participants[0].syncStop();
    Thread.sleep(500);
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        ClusterStateVerifier.verifyByZkCallback(new BestPossAndExtViewZkVerifier(ZK_ADDR,
            clusterName));
    Assert.assertTrue(result);

    // Disable the original standby (leaving 0 active controllers) and kill another participant
    admin.enableInstance(controllerCluster, standbyId, false);
    Thread.sleep(500);
    participants[1].syncStop();

    // Also change the ideal state
    IdealState idealState = admin.getResourceIdealState(clusterName, "TestDB0");
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    idealState.setMaxPartitionsPerInstance(1);
    admin.setResourceIdealState(clusterName, "TestDB0", idealState);
    Thread.sleep(500);

    // Also disable an instance in the main cluster
    admin.enableInstance(clusterName, "localhost_12920", false);

    // Re-enable the original leader
    admin.enableInstance(controllerCluster, leaderId, true);

    // Now check that both the ideal state and the live instances are adhered to by the rebalance
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    // Also disable an instance in the main cluster
    admin.enableInstance(clusterName, "localhost_12920", false);

    // Re-enable the original leader
    admin.enableInstance(controllerCluster, leaderId, true);

    // Now check that both the ideal state and the live instances are adhered to by the rebalance
    Thread.sleep(500);
    result =
        ClusterStateVerifier.verifyByZkCallback(new BestPossAndExtViewZkVerifier(ZK_ADDR,
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      Assert.fail("No leader was ever elected!");
    }
    String leaderId = leader.getId();
    String standbyId = (leaderId.equals("controller_0")) ? "controller_1" : "controller_0";
    HelixAdmin admin = _setupTool.getClusterManagementTool();
    admin.enableInstance(controllerCluster, leaderId, false);

    // Stop a participant to make sure that the leader election worked
    Thread.sleep(500);
    participants[0].syncStop();
    Thread.sleep(500);
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        ClusterStateVerifier.verifyByZkCallback(new BestPossAndExtViewZkVerifier(_zkaddr,
            clusterName));
    Assert.assertTrue(result);

    // Disable the original standby (leaving 0 active controllers) and kill another participant
    admin.enableInstance(controllerCluster, standbyId, false);
    Thread.sleep(500);
    participants[1].syncStop();

    // Also change the ideal state
    IdealState idealState = admin.getResourceIdealState(clusterName, "TestDB0");
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    idealState.setMaxPartitionsPerInstance(1);
    admin.setResourceIdealState(clusterName, "TestDB0", idealState);
    Thread.sleep(500);

    // Also disable an instance in the main cluster
    admin.enableInstance(clusterName, "localhost_12920", false);

    // Re-enable the original leader
    admin.enableInstance(controllerCluster, leaderId, true);

    // Now check that both the ideal state and the live instances are adhered to by the rebalance
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    // Also disable an instance in the main cluster
    admin.enableInstance(clusterName, "localhost_12920", false);

    // Re-enable the original leader
    admin.enableInstance(controllerCluster, leaderId, true);

    // Now check that both the ideal state and the live instances are adhered to by the rebalance
    Thread.sleep(500);
    result =
        ClusterStateVerifier.verifyByZkCallback(new BestPossAndExtViewZkVerifier(_zkaddr,
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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(_zkclient.exists(path));

    try {
      tool.addInstance(clusterName, config);
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      Assert.fail("should fail if drop on a non-existent instance");
    } catch (HelixException e) {
      // OK
    }
    try {
      tool.enableInstance(clusterName, "host1_9999", false);
      Assert.fail("should fail if enable a non-existent instance");
    } catch (HelixException e) {
      // OK
    }
    ZNRecord stateModelRecord = new ZNRecord("id1");
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