Examples with HelixAdmin org.apache.helix.HelixAdmin used on opensource projects

Example 86 with HelixAdmin

use of org.apache.helix.HelixAdmin in project helix by apache.

the class TestBucketizedResource method testBounceDisableAndDrop.

@Test
public void testBounceDisableAndDrop() {
    String className = TestHelper.getTestClassName();
    String methodName = TestHelper.getTestMethodName();
    String clusterName = className + "_" + methodName;
    String dbName = "TestDB0";
    List<String> instanceNames = Arrays.asList("localhost_0", "localhost_1", "localhost_2", "localhost_3", "localhost_4");
    int n = instanceNames.size();
    System.out.println("START " + clusterName + " at " + new Date(System.currentTimeMillis()));
    ZKHelixDataAccessor accessor = new ZKHelixDataAccessor(clusterName, _baseAccessor);
    PropertyKey.Builder keyBuilder = accessor.keyBuilder();
    setupCluster(clusterName, instanceNames, dbName, 3, 10, 2);
    // start controller
    ClusterControllerManager controller = new ClusterControllerManager(ZK_ADDR, clusterName);
    controller.syncStart();
    // start participants
    MockParticipantManager[] participants = new MockParticipantManager[n];
    for (int i = 0; i < n; i++) {
        participants[i] = new MockParticipantManager(ZK_ADDR, clusterName, instanceNames.get(i));
        participants[i].syncStart();
    }
    HelixClusterVerifier _clusterVerifier = new BestPossibleExternalViewVerifier.Builder(clusterName).setZkAddr(ZK_ADDR).build();
    Assert.assertTrue(_clusterVerifier.verify());
    // bounce
    participants[0].syncStop();
    participants[0] = new MockParticipantManager(ZK_ADDR, clusterName, instanceNames.get(0));
    participants[0].syncStart();
    Assert.assertTrue(_clusterVerifier.verify());
    // make sure participants[0]'s current state is bucketzied correctly during carryover
    String path = keyBuilder.currentState(instanceNames.get(0), participants[0].getSessionId(), dbName).getPath();
    ZNRecord record = _baseAccessor.get(path, null, 0);
    Assert.assertTrue(record.getMapFields().size() == 0);
    // disable the bucketize resource
    HelixAdmin admin = new ZKHelixAdmin(_gZkClient);
    admin.enableResource(clusterName, dbName, false);
    Assert.assertTrue(_clusterVerifier.verify());
    // drop the bucketize resource
    _gSetupTool.dropResourceFromCluster(clusterName, dbName);
    Assert.assertTrue(_clusterVerifier.verify());
    // make sure external-view is cleaned up
    path = keyBuilder.externalView(dbName).getPath();
    boolean result = _baseAccessor.exists(path, 0);
    Assert.assertFalse(result);
    // clean up
    controller.syncStop();
    for (MockParticipantManager participant : participants) {
        participant.syncStop();
    }
    System.out.println("END " + clusterName + " at " + new Date(System.currentTimeMillis()));
}

Example 87 with HelixAdmin

use of org.apache.helix.HelixAdmin in project helix by apache.

the class TestInvalidAutoIdealState method testInvalidReplica2.

// TODO Disable this test, need refactor it for testing message generation based on state priority
// @Test
void testInvalidReplica2() throws Exception {
    HelixAdmin admin = new ZKHelixAdmin(ZK_ADDR);
    // create cluster
    String className = TestHelper.getTestClassName();
    String methodName = TestHelper.getTestMethodName();
    String clusterName = className + "_" + methodName;
    String db = "TestDB";
    System.out.println("START " + clusterName + " at " + new Date(System.currentTimeMillis()));
    // System.out.println("Creating cluster: " + clusterName);
    admin.addCluster(clusterName, true);
    // add MasterSlave state mode definition
    admin.addStateModelDef(clusterName, "MasterSlave", new StateModelDefinition(StateModelConfigGenerator.generateConfigForMasterSlave()));
    // Add nodes to the cluster
    int n = 3;
    System.out.println("Adding " + n + " participants to the cluster");
    for (int i = 0; i < n; i++) {
        int port = 12918 + i;
        InstanceConfig instanceConfig = new InstanceConfig("localhost_" + port);
        instanceConfig.setHostName("localhost");
        instanceConfig.setPort("" + port);
        instanceConfig.setInstanceEnabled(true);
        admin.addInstance(clusterName, instanceConfig);
    // System.out.println("\t Added participant: " + instanceConfig.getInstanceName());
    }
    // construct ideal-state manually
    IdealState idealState = new IdealState(db);
    idealState.setRebalanceMode(RebalanceMode.SEMI_AUTO);
    idealState.setNumPartitions(2);
    // should be 3
    idealState.setReplicas("" + 2);
    idealState.setStateModelDefRef("MasterSlave");
    idealState.getRecord().setListField("TestDB_0", Arrays.asList("localhost_12918", "localhost_12919", "localhost_12920"));
    idealState.getRecord().setListField("TestDB_1", Arrays.asList("localhost_12919", "localhost_12918", "localhost_12920"));
    admin.setResourceIdealState(clusterName, "TestDB", idealState);
    // start participants
    MockParticipantManager[] participants = new MockParticipantManager[n];
    for (int i = 0; i < n; i++) {
        String instanceName = "localhost_" + (12918 + i);
        participants[i] = new MockParticipantManager(ZK_ADDR, clusterName, instanceName);
        participants[i].syncStart();
    }
    ClusterControllerManager controller = new ClusterControllerManager(ZK_ADDR, clusterName, "controller_0");
    controller.syncStart();
    boolean result = ClusterStateVerifier.verifyByZkCallback(new BestPossAndExtViewZkVerifier(ZK_ADDR, clusterName));
    Assert.assertTrue(result);
    // make sure localhost_12919 is master on TestDB_1
    HelixDataAccessor accessor = controller.getHelixDataAccessor();
    Builder keyBuilder = accessor.keyBuilder();
    ExternalView extView = accessor.getProperty(keyBuilder.externalView(db));
    Map<String, String> stateMap = extView.getStateMap(db + "_1");
    Assert.assertEquals(stateMap.get("localhost_12919"), "MASTER", "localhost_12919 should be MASTER even though replicas is set to 2, since we generate message based on target-state priority");
    System.out.println("END " + clusterName + " at " + new Date(System.currentTimeMillis()));
}

Example 88 with HelixAdmin

use of org.apache.helix.HelixAdmin in project helix by apache.

the class TestPartitionLevelTransitionConstraint method test.

@Test
public void test() throws Exception {
    // Logger.getRootLogger().setLevel(Level.INFO);
    String className = TestHelper.getTestClassName();
    String methodName = TestHelper.getTestMethodName();
    String clusterName = className + "_" + methodName;
    int n = 2;
    System.out.println("START " + clusterName + " at " + new Date(System.currentTimeMillis()));
    // participant port
    TestHelper.setupCluster(// participant port
    clusterName, // participant port
    ZK_ADDR, // participant port
    12918, // participant name prefix
    "localhost", // resource name prefix
    "TestDB", // resources
    1, // partitions per resource
    1, // number of nodes
    n, // replicas
    2, "MasterSlave", // do not rebalance
    false);
    // setup semi-auto ideal-state
    BaseDataAccessor<ZNRecord> baseAccessor = new ZkBaseDataAccessor<ZNRecord>(_gZkClient);
    HelixDataAccessor accessor = new ZKHelixDataAccessor(clusterName, baseAccessor);
    StateModelDefinition stateModelDef = defineStateModel();
    accessor.setProperty(accessor.keyBuilder().stateModelDef("Bootstrap"), stateModelDef);
    IdealState idealState = accessor.getProperty(accessor.keyBuilder().idealStates("TestDB0"));
    idealState.setStateModelDefRef("Bootstrap");
    idealState.setReplicas("2");
    idealState.getRecord().setListField("TestDB0_0", Arrays.asList("localhost_12919", "localhost_12918"));
    accessor.setProperty(accessor.keyBuilder().idealStates("TestDB0"), idealState);
    // setup partition-level constraint
    ConstraintItemBuilder constraintItemBuilder = new ConstraintItemBuilder();
    constraintItemBuilder.addConstraintAttribute(ConstraintAttribute.MESSAGE_TYPE.toString(), "STATE_TRANSITION").addConstraintAttribute(ConstraintAttribute.PARTITION.toString(), ".*").addConstraintAttribute(ConstraintAttribute.CONSTRAINT_VALUE.toString(), "1");
    HelixAdmin admin = new ZKHelixAdmin(_gZkClient);
    admin.setConstraint(clusterName, ConstraintType.MESSAGE_CONSTRAINT, "constraint1", constraintItemBuilder.build());
    ClusterControllerManager controller = new ClusterControllerManager(ZK_ADDR, clusterName, "controller");
    controller.syncStart();
    // start 1st participant
    MockParticipantManager[] participants = new MockParticipantManager[n];
    String instanceName1 = "localhost_12918";
    participants[0] = new MockParticipantManager(ZK_ADDR, clusterName, instanceName1);
    participants[0].getStateMachineEngine().registerStateModelFactory("Bootstrap", new BootstrapStateModelFactory());
    participants[0].syncStart();
    boolean result = ClusterStateVerifier.verifyByZkCallback(new ClusterStateVerifier.BestPossAndExtViewZkVerifier(ZK_ADDR, clusterName));
    Assert.assertTrue(result);
    // start 2nd participant which will be the master for Test0_0
    String instanceName2 = "localhost_12919";
    participants[1] = new MockParticipantManager(ZK_ADDR, clusterName, instanceName2);
    participants[1].getStateMachineEngine().registerStateModelFactory("Bootstrap", new BootstrapStateModelFactory());
    participants[1].syncStart();
    result = ClusterStateVerifier.verifyByZkCallback(new ClusterStateVerifier.BestPossAndExtViewZkVerifier(ZK_ADDR, clusterName));
    Assert.assertTrue(result);
    // check we received the message in the right order
    Assert.assertEquals(_msgOrderList.size(), 7);
    Message[] _msgOrderArray = _msgOrderList.toArray(new Message[0]);
    assertMessage(_msgOrderArray[0], "OFFLINE", "BOOTSTRAP", instanceName1);
    assertMessage(_msgOrderArray[1], "BOOTSTRAP", "SLAVE", instanceName1);
    assertMessage(_msgOrderArray[2], "SLAVE", "MASTER", instanceName1);
    // after we start the 2nd instance, the messages should be received in the following order:
    // 1) offline->bootstrap for localhost_12919
    // 2) bootstrap->slave for localhost_12919
    // 3) master->slave for localhost_12918
    // 4) slave->master for localhost_12919
    assertMessage(_msgOrderArray[3], "OFFLINE", "BOOTSTRAP", instanceName2);
    assertMessage(_msgOrderArray[4], "BOOTSTRAP", "SLAVE", instanceName2);
    assertMessage(_msgOrderArray[5], "MASTER", "SLAVE", instanceName1);
    assertMessage(_msgOrderArray[6], "SLAVE", "MASTER", instanceName2);
    // clean up
    // wait for all zk callbacks done
    controller.syncStop();
    for (int i = 0; i < n; i++) {
        participants[i].syncStop();
    }
    System.out.println("END " + clusterName + " at " + new Date(System.currentTimeMillis()));
}

Example 89 with HelixAdmin

use of org.apache.helix.HelixAdmin in project helix by apache.

the class InstanceAccessor method deleteInstance.

@DELETE
@Path("{instanceName}")
public Response deleteInstance(@PathParam("clusterId") String clusterId, @PathParam("instanceName") String instanceName) {
    HelixAdmin admin = getHelixAdmin();
    try {
        InstanceConfig instanceConfig = admin.getInstanceConfig(clusterId, instanceName);
        admin.dropInstance(clusterId, instanceConfig);
    } catch (HelixException e) {
        return badRequest(e.getMessage());
    }
    return OK();
}

Example 90 with HelixAdmin

use of org.apache.helix.HelixAdmin in project helix by apache.

the class ResourceAccessor method getResourceIdealState.

@GET
@Path("{resourceName}/idealState")
public Response getResourceIdealState(@PathParam("clusterId") String clusterId, @PathParam("resourceName") String resourceName) {
    HelixAdmin admin = getHelixAdmin();
    IdealState idealState = admin.getResourceIdealState(clusterId, resourceName);
    if (idealState != null) {
        return JSONRepresentation(idealState.getRecord());
    }
    return notFound();
}