Package storm.kafka.trident

Examples of storm.kafka.trident.GlobalPartitionInformation

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    public void testGetBrokerInfo() throws Exception {
        String host = "localhost";
        int port = 9092;
        int partition = 0;
        addPartition(partition, host, port);
        GlobalPartitionInformation brokerInfo = dynamicBrokersReader.getBrokerInfo();
        assertEquals(1, brokerInfo.getOrderedPartitions().size());
        assertEquals(port, brokerInfo.getBrokerFor(partition).port);
        assertEquals(host, brokerInfo.getBrokerFor(partition).host);
    }
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        int partition = 0;
        int secondPartition = partition + 1;
        addPartition(partition, 0, host, port);
        addPartition(secondPartition, 1, host, secondPort);

        GlobalPartitionInformation brokerInfo = dynamicBrokersReader.getBrokerInfo();
        assertEquals(2, brokerInfo.getOrderedPartitions().size());

        assertEquals(port, brokerInfo.getBrokerFor(partition).port);
        assertEquals(host, brokerInfo.getBrokerFor(partition).host);

        assertEquals(secondPort, brokerInfo.getBrokerFor(secondPartition).port);
        assertEquals(host, brokerInfo.getBrokerFor(secondPartition).host);
    }
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        int partition = 0;
        int secondPartition = partition + 1;
        addPartition(partition, 0, host, port);
        addPartition(secondPartition, 0, host, port);

        GlobalPartitionInformation brokerInfo = dynamicBrokersReader.getBrokerInfo();
        assertEquals(2, brokerInfo.getOrderedPartitions().size());

        assertEquals(port, brokerInfo.getBrokerFor(partition).port);
        assertEquals(host, brokerInfo.getBrokerFor(partition).host);

        assertEquals(port, brokerInfo.getBrokerFor(secondPartition).port);
        assertEquals(host, brokerInfo.getBrokerFor(secondPartition).host);
    }
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    public void testSwitchHostForPartition() throws Exception {
        String host = "localhost";
        int port = 9092;
        int partition = 0;
        addPartition(partition, host, port);
        GlobalPartitionInformation brokerInfo = dynamicBrokersReader.getBrokerInfo();
        assertEquals(port, brokerInfo.getBrokerFor(partition).port);
        assertEquals(host, brokerInfo.getBrokerFor(partition).host);

        String newHost = host + "switch";
        int newPort = port + 1;
        addPartition(partition, newHost, newPort);
        brokerInfo = dynamicBrokersReader.getBrokerInfo();
        assertEquals(newPort, brokerInfo.getBrokerFor(partition).port);
        assertEquals(newHost, brokerInfo.getBrokerFor(partition).host);
    }
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    /**
     * Get all partitions with their current leaders
     */
    public GlobalPartitionInformation getBrokerInfo() throws SocketTimeoutException {
      GlobalPartitionInformation globalPartitionInformation = new GlobalPartitionInformation();
        try {
            int numPartitionsForTopic = getNumPartitions();
            String brokerInfoPath = brokerPath();
            for (int partition = 0; partition < numPartitionsForTopic; partition++) {
                int leader = getLeaderFor(partition);
                String path = brokerInfoPath + "/" + leader;
                try {
                    byte[] brokerData = _curator.getData().forPath(path);
                    Broker hp = getBrokerHost(brokerData);
                    globalPartitionInformation.addPartition(partition, hp);
                } catch (org.apache.zookeeper.KeeperException.NoNodeException e) {
                    LOG.error("Node {} does not exist ", path);
                }
            }
        } catch (SocketTimeoutException e) {
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    @Override
    public void refresh() {
        try {
            LOG.info(taskId(_taskIndex, _totalTasks) + "Refreshing partition manager connections");
            GlobalPartitionInformation brokerInfo = _reader.getBrokerInfo();
            List<Partition> mine = KafkaUtils.calculatePartitionsForTask(brokerInfo, _totalTasks, _taskIndex);

            Set<Partition> curr = _managers.keySet();
            Set<Partition> newPartitions = new HashSet<Partition>(mine);
            newPartitions.removeAll(curr);
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        return buildPartitionInfo(numPartitions, 9092);
    }


    public static GlobalPartitionInformation buildPartitionInfo(int numPartitions, int brokerPort) {
        GlobalPartitionInformation globalPartitionInformation = new GlobalPartitionInformation();
        for (int i = 0; i < numPartitions; i++) {
            globalPartitionInformation.addPartition(i, Broker.fromString("broker-" + i + " :" + brokerPort));
        }
        return globalPartitionInformation;
    }
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        KafkaConfig kafkaConfig = new KafkaConfig(brokerHosts, TOPIC);
        return kafkaConfig;
    }

    private static BrokerHosts getBrokerHosts(KafkaTestBroker broker) {
        GlobalPartitionInformation globalPartitionInformation = new GlobalPartitionInformation();
        globalPartitionInformation.addPartition(0, Broker.fromString(broker.getBrokerConnectionString()));
        return new StaticHosts(globalPartitionInformation);
    }
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    private BrokerHosts brokerHosts;

    @Before
    public void setup() {
        broker = new KafkaTestBroker();
        GlobalPartitionInformation globalPartitionInformation = new GlobalPartitionInformation();
        globalPartitionInformation.addPartition(0, Broker.fromString(broker.getBrokerConnectionString()));
        brokerHosts = new StaticHosts(globalPartitionInformation);
        config = new KafkaConfig(brokerHosts, "testTopic");
        simpleConsumer = new SimpleConsumer("localhost", broker.getPort(), 60000, 1024, "testClient");
    }
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        runPartitionToTaskMappingTest(32, 32);
    }


    public void runPartitionToTaskMappingTest(int numPartitions, int partitionsPerTask) {
        GlobalPartitionInformation globalPartitionInformation = TestUtils.buildPartitionInfo(numPartitions);
        int numTasks = numPartitions / partitionsPerTask;
        for (int i = 0 ; i < numTasks ; i++) {
            assertEquals(partitionsPerTask, KafkaUtils.calculatePartitionsForTask(globalPartitionInformation, numTasks, i).size());
        }
    }
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Related Classes of storm.kafka.trident.GlobalPartitionInformation

  • storm.kafka.bolt.KafkaBoltTest
  • storm.kafka.DynamicBrokersReader
  • storm.kafka.DynamicBrokersReaderTest
  • storm.kafka.KafkaUtilsTest
  • storm.kafka.Partition
  • storm.kafka.TestUtils
  • storm.kafka.ZkCoordinator
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