Examples with ZkClient org.apache.helix.manager.zk.ZkClient used on opensource projects

Example 1 with ZkClient

use of org.apache.helix.manager.zk.ZkClient in project pinot by linkedin.

the class HelixSetupUtils method createHelixClusterIfNeeded.

public static void createHelixClusterIfNeeded(String helixClusterName, String zkPath, boolean isUpdateStateModel) {
    final HelixAdmin admin = new ZKHelixAdmin(zkPath);
    final String segmentStateModelName = PinotHelixSegmentOnlineOfflineStateModelGenerator.PINOT_SEGMENT_ONLINE_OFFLINE_STATE_MODEL;
    if (admin.getClusters().contains(helixClusterName)) {
        LOGGER.info("cluster already exists ********************************************* ");
        if (isUpdateStateModel) {
            final StateModelDefinition curStateModelDef = admin.getStateModelDef(helixClusterName, segmentStateModelName);
            List<String> states = curStateModelDef.getStatesPriorityList();
            if (states.contains(PinotHelixSegmentOnlineOfflineStateModelGenerator.CONSUMING_STATE)) {
                LOGGER.info("State model {} already updated to contain CONSUMING state", segmentStateModelName);
                return;
            } else {
                LOGGER.info("Updating {} to add states for low level kafka consumers", segmentStateModelName);
                StateModelDefinition newStateModelDef = PinotHelixSegmentOnlineOfflineStateModelGenerator.generatePinotStateModelDefinition();
                ZkClient zkClient = new ZkClient(zkPath);
                zkClient.waitUntilConnected(20, TimeUnit.SECONDS);
                zkClient.setZkSerializer(new ZNRecordSerializer());
                HelixDataAccessor accessor = new ZKHelixDataAccessor(helixClusterName, new ZkBaseDataAccessor<ZNRecord>(zkClient));
                PropertyKey.Builder keyBuilder = accessor.keyBuilder();
                accessor.setProperty(keyBuilder.stateModelDef(segmentStateModelName), newStateModelDef);
                LOGGER.info("Completed updating statemodel {}", segmentStateModelName);
                zkClient.close();
            }
        }
        return;
    }
    LOGGER.info("Creating a new cluster, as the helix cluster : " + helixClusterName + " was not found ********************************************* ");
    admin.addCluster(helixClusterName, false);
    LOGGER.info("Enable auto join.");
    final HelixConfigScope scope = new HelixConfigScopeBuilder(ConfigScopeProperty.CLUSTER).forCluster(helixClusterName).build();
    final Map<String, String> props = new HashMap<String, String>();
    props.put(ZKHelixManager.ALLOW_PARTICIPANT_AUTO_JOIN, String.valueOf(true));
    //we need only one segment to be loaded at a time
    props.put(MessageType.STATE_TRANSITION + "." + HelixTaskExecutor.MAX_THREADS, String.valueOf(1));
    admin.setConfig(scope, props);
    LOGGER.info("Adding state model {} (with CONSUMED state) generated using {} **********************************************", segmentStateModelName, PinotHelixSegmentOnlineOfflineStateModelGenerator.class.toString());
    // If this is a fresh cluster we are creating, then the cluster will see the CONSUMING state in the
    // state model. But then the servers will never be asked to go to that STATE (whether they have the code
    // to handle it or not) unil we complete the feature using low-level kafka consumers and turn the feature on.
    admin.addStateModelDef(helixClusterName, segmentStateModelName, PinotHelixSegmentOnlineOfflineStateModelGenerator.generatePinotStateModelDefinition());
    LOGGER.info("Adding state model definition named : " + PinotHelixBrokerResourceOnlineOfflineStateModelGenerator.PINOT_BROKER_RESOURCE_ONLINE_OFFLINE_STATE_MODEL + " generated using : " + PinotHelixBrokerResourceOnlineOfflineStateModelGenerator.class.toString() + " ********************************************** ");
    admin.addStateModelDef(helixClusterName, PinotHelixBrokerResourceOnlineOfflineStateModelGenerator.PINOT_BROKER_RESOURCE_ONLINE_OFFLINE_STATE_MODEL, PinotHelixBrokerResourceOnlineOfflineStateModelGenerator.generatePinotStateModelDefinition());
    LOGGER.info("Adding empty ideal state for Broker!");
    HelixHelper.updateResourceConfigsFor(new HashMap<String, String>(), CommonConstants.Helix.BROKER_RESOURCE_INSTANCE, helixClusterName, admin);
    IdealState idealState = PinotTableIdealStateBuilder.buildEmptyIdealStateForBrokerResource(admin, helixClusterName);
    admin.setResourceIdealState(helixClusterName, CommonConstants.Helix.BROKER_RESOURCE_INSTANCE, idealState);
    initPropertyStorePath(helixClusterName, zkPath);
    LOGGER.info("New Cluster setup completed... ********************************************** ");
}

Example 2 with ZkClient

use of org.apache.helix.manager.zk.ZkClient in project pinot by linkedin.

the class ControllerSentinelTestV2 method setup.

@BeforeClass
public void setup() throws Exception {
    startZk();
    _zkClient = new ZkClient(ZkStarter.DEFAULT_ZK_STR);
    startController();
    _pinotResourceManager = _controllerStarter.getHelixResourceManager();
    ControllerRequestBuilderUtil.addFakeBrokerInstancesToAutoJoinHelixCluster(HELIX_CLUSTER_NAME, ZkStarter.DEFAULT_ZK_STR, 20, true);
    ControllerRequestBuilderUtil.addFakeDataInstancesToAutoJoinHelixCluster(HELIX_CLUSTER_NAME, ZkStarter.DEFAULT_ZK_STR, 20, true);
}

Example 3 with ZkClient

use of org.apache.helix.manager.zk.ZkClient in project pinot by linkedin.

the class ControllerTenantTest method setup.

@BeforeClass
public void setup() throws Exception {
    startZk();
    _zkClient = new ZkClient(ZkStarter.DEFAULT_ZK_STR);
    startController();
    ZKMetadataProvider.setClusterTenantIsolationEnabled(_propertyStore, false);
    ControllerRequestBuilderUtil.addFakeBrokerInstancesToAutoJoinHelixCluster(HELIX_CLUSTER_NAME, ZkStarter.DEFAULT_ZK_STR, 20);
    ControllerRequestBuilderUtil.addFakeDataInstancesToAutoJoinHelixCluster(HELIX_CLUSTER_NAME, ZkStarter.DEFAULT_ZK_STR, 20);
}

Example 4 with ZkClient

use of org.apache.helix.manager.zk.ZkClient in project pinot by linkedin.

the class LLCRealtimeClusterIntegrationTest method testSegmentFlushSize.

@Test
public void testSegmentFlushSize() {
    ZkClient zkClient = new ZkClient(ZkStarter.DEFAULT_ZK_STR, 10000);
    zkClient.setZkSerializer(new ZNRecordSerializer());
    String zkPath = "/LLCRealtimeClusterIntegrationTest/PROPERTYSTORE/SEGMENTS/mytable_REALTIME";
    List<String> segmentNames = zkClient.getChildren(zkPath);
    for (String segmentName : segmentNames) {
        ZNRecord znRecord = zkClient.<ZNRecord>readData(zkPath + "/" + segmentName);
        Assert.assertEquals(znRecord.getSimpleField(CommonConstants.Segment.FLUSH_THRESHOLD_SIZE), Integer.toString(ROW_COUNT_FOR_REALTIME_SEGMENT_FLUSH / KAFKA_PARTITION_COUNT), "Segment " + segmentName + " does not have the expected flush size");
    }
    zkClient.close();
}

Example 5 with ZkClient

use of org.apache.helix.manager.zk.ZkClient in project pinot by linkedin.

the class TimeBoundaryServiceTest method beforeTest.

@BeforeTest
public void beforeTest() {
    _zookeeperInstance = ZkStarter.startLocalZkServer();
    _zkClient = new ZkClient(StringUtil.join("/", StringUtils.chomp(ZkStarter.DEFAULT_ZK_STR, "/")), ZkClient.DEFAULT_SESSION_TIMEOUT, ZkClient.DEFAULT_CONNECTION_TIMEOUT, new ZNRecordSerializer());
    String helixClusterName = "TestTimeBoundaryService";
    _zkClient.deleteRecursive("/" + helixClusterName + "/PROPERTYSTORE");
    _zkClient.createPersistent("/" + helixClusterName + "/PROPERTYSTORE", true);
    _propertyStore = new ZkHelixPropertyStore<ZNRecord>(new ZkBaseDataAccessor<ZNRecord>(_zkClient), "/" + helixClusterName + "/PROPERTYSTORE", null);
}