Java Code Examples for backtype.storm.Config#setNumWorkers()

@Test
public void test_timeDiffActivated_timeEviction() throws InterruptedException {
    Flow flow = new FlowBuilder()
            .id("flow")
            .flowDefs()
            .stream("stream1")
            .stopGate().open(Policy.TIME_DELTA_LT, 5).close(Policy.TIME, 1).evict(Policy.TIME, 1).end()
            .endStream()   // send ALL results to stream2 and not to standard output
            .endDefs()
            .createFlow();

    StormTopology topology = buildTopology(flow, 50);
    Config conf = new Config();
    conf.setNumWorkers(20);
    conf.registerSerialization(BaseEvent.class, EventSerializer.class);
    conf.setSkipMissingKryoRegistrations(false);

    LocalCluster cluster = new LocalCluster();
    cluster.submitTopology("test", conf, topology);

    Thread.sleep(7000);

    int size = MockSinkBolt.getEvents().size();
    System.out.println("SIZE: " + size);
    assertTrue(size >= 50 && size <= 65);
}
 

public static void submitTopology(StormTopology stormTopology, Map topologyConfig) throws Exception {
    // setup StormTopology

    Config submitConfig = new Config();

    // set the configuration for topology
    submitConfig.put(Config.TOPOLOGY_TRIDENT_BATCH_EMIT_INTERVAL_MILLIS, 5000);
    submitConfig.put(Config.TOPOLOGY_ACKER_EXECUTORS, 100);
    submitConfig.put(Config.TOPOLOGY_MESSAGE_TIMEOUT_SECS, 20);

    // set the worker process number
    submitConfig.setNumWorkers(ConfigHelper.getInt(topologyConfig, ConfigKeys.STORM_WORKER_NUMBER));

    // get topologyName adn clusterMode;
    String topologyName = ConfigHelper.getString(topologyConfig, ConfigKeys.STORM_TOPOLOGY_NAME);
    String clusterMode = ConfigHelper.getString(topologyConfig, ConfigKeys.STORM_CLUSTER_MODE);

    if (clusterMode.equals("local")) {
        LocalCluster cluster = new LocalCluster();
        cluster.submitTopology("storm-emq", submitConfig, stormTopology);
    } else {
        submitConfig.put(Config.NIMBUS_HOST, ConfigHelper.getString(topologyConfig, ConfigKeys.STORM_NIMBUS_HOSTNAME));
        StormSubmitter.submitTopology(topologyName, submitConfig, stormTopology);
    }

}
 

public void run() {

    StormTopology topology = new FlowmixBuilder()
        .setFlowLoader(new SimpleFlowLoaderSpout(provider.getFlows(), 60000))
        .setEventsLoader(new MockEventGeneratorSpout(getMockEvents(), 10))
        .setOutputBolt(new PrinterBolt())
        .setParallelismHint(6)
      .create()
    .createTopology();

    Config conf = new Config();
    conf.setNumWorkers(20);
    conf.setMaxSpoutPending(5000);
    conf.setDebug(false);
    conf.registerSerialization(BaseEvent.class, EventSerializer.class);
    conf.setSkipMissingKryoRegistrations(false);

    LocalCluster cluster = new LocalCluster();
    cluster.submitTopology("example-topology", conf, topology);
  }
 

public static void main(String[] args) throws Exception {
	ParameterTool pt = ParameterTool.fromArgs(args);

	int par = pt.getInt("para");


	TridentTopology topology = new TridentTopology();
	Stream sourceStream = topology.newStream("source", new Generator(pt)).parallelismHint(pt.getInt("sourceParallelism"));

	Stream repart = sourceStream.partitionBy(new Fields("id"));
	for(int i = 0; i < pt.getInt("repartitions", 1) - 1; i++) {
		repart = repart.each(new Fields("id"), new IdentityEach(), new Fields("id"+i)).partitionBy(new Fields("id"+i));
	}
	repart.each(new Fields("id", "host", "time", "payload"), new Sink(pt), new Fields("dontcare")).parallelismHint(pt.getInt("sinkParallelism"));

	Config conf = new Config();
	conf.setDebug(false);

	if (!pt.has("local")) {
		conf.setNumWorkers(par);

		StormSubmitter.submitTopologyWithProgressBar("throughput-"+pt.get("name", "no_name"), conf, topology.build());
	}
	else {
		conf.setMaxTaskParallelism(par);

		LocalCluster cluster = new LocalCluster();
		cluster.submitTopology("throughput", conf, topology.build());

		Thread.sleep(30000);

		cluster.shutdown();
	}

}
 

@Test
public void testSelection_basic() {

  Flow flow = new FlowBuilder()
    .id("myflow")
    .flowDefs()
      .stream("stream1")
        .select().fields("key1", "key2").end()
      .endStream()
    .endDefs()
  .createFlow();

  StormTopology topology = buildTopology(flow, 10);
  Config conf = new Config();
  conf.registerSerialization(Event.class, EventSerializer.class);
  conf.setSkipMissingKryoRegistrations(false);
  conf.setNumWorkers(20);

  LocalCluster cluster = new LocalCluster();
  cluster.submitTopology("test", conf, topology);

  try {
    Thread.sleep(3000);
  } catch (InterruptedException e) {
    e.printStackTrace();
  }

  cluster.shutdown();
  System.out.println(MockSinkBolt.getEvents());
  assertTrue(MockSinkBolt.getEvents().size() > 0);

  for(Event event : MockSinkBolt.getEvents()) {
    assertNotNull(event.get("key1"));
    assertNotNull(event.get("key2"));
    assertNull(event.get("key3"));
    assertNull(event.get("key4"));
    assertNull(event.get("key5"));
  }
}
 

public static void main(String[] args) throws Exception {
  if (args.length != 1) {
    throw new RuntimeException("Please specify the name of the topology");
  }
  TopologyBuilder builder = new TopologyBuilder();

  int parallelism = 2;
  builder.setSpout("word", new AckingTestWordSpout(), parallelism);
  builder.setBolt("exclaim1", new ExclamationBolt(true), parallelism)
      .shuffleGrouping("word");
  builder.setBolt("exclaim2", new ExclamationBolt(false), parallelism)
      .shuffleGrouping("exclaim1");

  Config conf = new Config();
  conf.setDebug(true);

  // Put an arbitrary large number here if you don't want to slow the topology down
  conf.setMaxSpoutPending(1000 * 1000 * 1000);

  // To enable acking, we need to setEnableAcking true
  conf.setNumAckers(1);

  conf.put(Config.TOPOLOGY_WORKER_CHILDOPTS, "-XX:+HeapDumpOnOutOfMemoryError");

  conf.setNumWorkers(parallelism);
  StormSubmitter.submitTopology(args[0], conf, builder.createTopology());
}
 

public static void main(String[] args) throws Exception {
  if (args.length != 1) {
    throw new RuntimeException("Specify topology name");
  }
  TopologyBuilder builder = new TopologyBuilder();

  builder.setSpout("word", new AckingTestWordSpout(), 2);
  builder.setBolt("count", new CountBolt(), 2)
      .shuffleGrouping("word");

  Config conf = new Config();
  conf.setDebug(true);
  // Put an arbitrary large number here if you don't want to slow the topology down
  conf.setMaxSpoutPending(1000 * 1000 * 1000);
  // To enable acking, we need to setEnableAcking true
  conf.setNumAckers(1);
  conf.put(Config.TOPOLOGY_WORKER_CHILDOPTS, "-XX:+HeapDumpOnOutOfMemoryError");

  // Set the task hook
  List<String> taskHooks = new LinkedList<>();
  taskHooks.add("org.apache.heron.examples.TaskHookTopology$TestTaskHook");
  org.apache.heron.api.Config.setAutoTaskHooks(conf, taskHooks);

  // component resource configuration
  org.apache.heron.api.Config.setComponentRam(conf, "word", ByteAmount.fromMegabytes(512));
  org.apache.heron.api.Config.setComponentRam(conf, "count", ByteAmount.fromMegabytes(512));

  // container resource configuration
  org.apache.heron.api.Config.setContainerDiskRequested(conf, ByteAmount.fromGigabytes(2));
  org.apache.heron.api.Config.setContainerRamRequested(conf, ByteAmount.fromGigabytes(2));
  org.apache.heron.api.Config.setContainerCpuRequested(conf, 2);


  conf.setNumWorkers(2);
  StormSubmitter.submitTopology(args[0], conf, builder.createTopology());
}
 

public static void main(String[] args) throws Exception {

        SentenceSpout spout = new SentenceSpout();
        SplitSentenceBolt splitBolt = new SplitSentenceBolt();
        WordCountBolt countBolt = new WordCountBolt();
        ReportBolt reportBolt = new ReportBolt();


        TopologyBuilder builder = new TopologyBuilder();

        builder.setSpout(SENTENCE_SPOUT_ID, spout, 2);
        // SentenceSpout --> SplitSentenceBolt
        builder.setBolt(SPLIT_BOLT_ID, splitBolt, 2)
                .setNumTasks(4)
                .shuffleGrouping(SENTENCE_SPOUT_ID);
        // SplitSentenceBolt --> WordCountBolt
        builder.setBolt(COUNT_BOLT_ID, countBolt, 4)
                .fieldsGrouping(SPLIT_BOLT_ID, new Fields("word"));
        // WordCountBolt --> ReportBolt
        builder.setBolt(REPORT_BOLT_ID, reportBolt)
                .globalGrouping(COUNT_BOLT_ID);

        Config config = new Config();
        config.setNumWorkers(2);

        LocalCluster cluster = new LocalCluster();

        cluster.submitTopology(TOPOLOGY_NAME, config, builder.createTopology());
        waitForSeconds(10);
        cluster.killTopology(TOPOLOGY_NAME);
        cluster.shutdown();
    }
 

public static void main(String[] args) throws Exception {
    Config conf = new Config();
    conf.setMaxSpoutPending(5);
    if (args.length == 1) {
        LocalCluster cluster = new LocalCluster();
        cluster.submitTopology("wordCounter", conf, buildTopology(args[0]));
        Thread.sleep(120 * 1000);
    }
    else if(args.length == 2) {
        conf.setNumWorkers(3);
        StormSubmitter.submitTopology(args[1], conf, buildTopology(args[0]));
    } else{
        System.out.println("Usage: TridentFileTopology <hdfs url> [topology name]");
    }
}
 

public boolean submitTopology(StormTopology stormTopology, String topologyName, int numOfWorkers, boolean debug, long timeoutMs) {
    if (log.isDebugEnabled()) log.debug("Connecting to NimbusClient: {}", nimbus.getConfig(Storm.NIMBUS_HOSTNAME));
    Config conf = new Config();
    conf.setDebug(debug);
    conf.setNumWorkers(numOfWorkers);

    // TODO - confirm this creats the JAR correctly
    String jar = createJar(
        new File(Os.mergePaths(ResourceUtils.create(this).getClassLoaderDir(), "org/apache/brooklyn/entity/messaging/storm/topologies")),
        "org/apache/brooklyn/entity/messaging/storm/");
    System.setProperty("storm.jar", jar);
    long startMs = System.currentTimeMillis();
    long endMs = (timeoutMs == -1) ? Long.MAX_VALUE : (startMs + timeoutMs);
    long currentTime = startMs;
    Throwable lastError = null;
    int attempt = 0;
    while (currentTime <= endMs) {
        currentTime = System.currentTimeMillis();
        if (attempt != 0) Time.sleep(Duration.ONE_SECOND);
        if (log.isTraceEnabled()) log.trace("trying connection to {} at time {}", nimbus.getConfig(Storm.NIMBUS_HOSTNAME), currentTime);

        try {
            StormSubmitter.submitTopology(topologyName, conf, stormTopology);
            return true;
        } catch (Exception e) {
            if (shouldRetryOn(e)) {
                if (log.isDebugEnabled()) log.debug("Attempt {} failed connecting to {} ({})", new Object[] {attempt + 1, nimbus.getConfig(Storm.NIMBUS_HOSTNAME), e.getMessage()});
                lastError = e;
            } else {
                throw Throwables.propagate(e);
            }
        }
        attempt++;
    }
    log.warn("unable to connect to Nimbus client: ", lastError);
    Assert.fail();
    return false;
}
 

/**
 * The main method.
 * 
 * @param args
 *          the arguments
 */
public static void main(String[] args) {

  List<String> tmpArgs = new ArrayList<String>(Arrays.asList(args));

  boolean isLocal = isLocal(tmpArgs);
  int numWorker = StormSamoaUtils.numWorkers(tmpArgs);

  args = tmpArgs.toArray(new String[0]);

  // convert the arguments into Storm topology
  StormTopology stormTopo = StormSamoaUtils.argsToTopology(args);
  String topologyName = stormTopo.getTopologyName();

  Config conf = new Config();
  conf.putAll(Utils.readStormConfig());
  conf.setDebug(false);

  if (isLocal) {
    // local mode
    conf.setMaxTaskParallelism(numWorker);

    backtype.storm.LocalCluster cluster = new backtype.storm.LocalCluster();
    cluster.submitTopology(topologyName, conf, stormTopo.getStormBuilder().createTopology());

    backtype.storm.utils.Utils.sleep(600 * 1000);

    cluster.killTopology(topologyName);
    cluster.shutdown();

  } else {
    // cluster mode
    conf.setNumWorkers(numWorker);
    try {
      backtype.storm.StormSubmitter.submitTopology(topologyName, conf,
          stormTopo.getStormBuilder().createTopology());
    } catch (backtype.storm.generated.AlreadyAliveException ale) {
      ale.printStackTrace();
    } catch (backtype.storm.generated.InvalidTopologyException ite) {
      ite.printStackTrace();
    }
  }
}
 

public static void main(String[] args) throws IllegalArgumentException, KeeperException, InterruptedException, AlreadyAliveException, InvalidTopologyException, IOException {
    String propertiesFile = null;
    String mode = null;
    
    if (args.length != 2) {
        printUsageAndExit();
    } else {
        propertiesFile = args[0];
        mode = args[1];
    }
    
    configure(propertiesFile);

    final KinesisSpoutConfig config =
            new KinesisSpoutConfig(streamName, zookeeperEndpoint).withZookeeperPrefix(zookeeperPrefix)
                    .withInitialPositionInStream(initialPositionInStream)
                    .withRegion(Regions.fromName(regionName));

    final KinesisSpout spout = new KinesisSpout(config, new CustomCredentialsProviderChain(), new ClientConfiguration());
    TopologyBuilder builder = new TopologyBuilder();
    LOG.info("Using Kinesis stream: " + config.getStreamName());


    // Using number of shards as the parallelism hint for the spout.
    builder.setSpout("Kinesis", spout, 2);
    builder.setBolt("Parse", new ParseReferrerBolt(), 6).shuffleGrouping("Kinesis");
    builder.setBolt("Count", new RollingCountBolt(5, 2,elasticCacheRedisEndpoint), 6).fieldsGrouping("Parse", new Fields("referrer"));

    //builder.setBolt("Count", new CountReferrerBolt(), 12).fieldsGrouping("Parse", new Fields("referrer"));

    Config topoConf = new Config();
    topoConf.setFallBackOnJavaSerialization(true);
    topoConf.setDebug(false);

    if (mode.equals("LocalMode")) {
        LOG.info("Starting sample storm topology in LocalMode ...");
        new LocalCluster().submitTopology("test_spout", topoConf, builder.createTopology());
    } else if (mode.equals("RemoteMode")) {
        topoConf.setNumWorkers(1);
        topoConf.setMaxSpoutPending(5000);
        LOG.info("Submitting sample topology " + topologyName + " to remote cluster.");
        StormSubmitter.submitTopology(topologyName, topoConf, builder.createTopology());            
    } else {
        printUsageAndExit();
    }

}
 

private static void loadTopologyPropertiesAndSubmit(Properties properties,
		Config config) throws Exception {
	
	String stormExecutionMode = properties.getProperty("storm.execution.mode","local");
	int stormWorkersNumber = Integer.parseInt(properties.getProperty("storm.workers.number","2"));
	int maxTaskParallism = Integer.parseInt(properties.getProperty("storm.max.task.parallelism","2"));
	String topologyName = properties.getProperty("storm.topology.name","topologyName");
	String zookeeperHosts = properties.getProperty("zookeeper.hosts");
	int topologyBatchEmitMillis = Integer.parseInt(
			properties.getProperty("storm.topology.batch.interval.miliseconds","2000"));
	
	// How often a batch can be emitted in a Trident topology.
	config.put(Config.TOPOLOGY_TRIDENT_BATCH_EMIT_INTERVAL_MILLIS, topologyBatchEmitMillis);
	config.setNumWorkers(stormWorkersNumber);
	config.setMaxTaskParallelism(maxTaskParallism);
	
	AuditActiveLoginsTopology auditActiveLoginsTopology = new AuditActiveLoginsTopology(zookeeperHosts);
	StormTopology stormTopology = auditActiveLoginsTopology.buildTopology(properties);
	
	// Elastic Search specific properties
	config.put(StormElasticSearchConstants.ES_HOST, properties.getProperty("elasticsearch.host", "localhost"));
	config.put(StormElasticSearchConstants.ES_PORT, (Integer.parseInt(properties.getProperty("elasticsearch.port", "9300"))));
	config.put(StormElasticSearchConstants.ES_CLUSTER_NAME, properties.getProperty("elasticsearch.cluster.name"));
	config.put("elasticsearch.index", properties.getProperty("elasticsearch.index"));
	config.put("elasticsearch.type", properties.getProperty("elasticsearch.type"));

	switch (stormExecutionMode){
		case ("cluster"):
			String nimbusHost = properties.getProperty("storm.nimbus.host","localhost");
			String nimbusPort = properties.getProperty("storm.nimbus.port","6627");
			config.put(Config.NIMBUS_HOST, nimbusHost);
			config.put(Config.NIMBUS_THRIFT_PORT, Integer.parseInt(nimbusPort));
			config.put(Config.STORM_ZOOKEEPER_PORT, parseZkPort(zookeeperHosts));
			config.put(Config.STORM_ZOOKEEPER_SERVERS, parseZkHosts(zookeeperHosts));
			StormSubmitter.submitTopology(topologyName, config, stormTopology);
			break;
		case ("local"):
		default:
			int localTimeExecution = Integer.parseInt(properties.getProperty("storm.local.execution.time","20000"));
			LocalCluster cluster = new LocalCluster();
			cluster.submitTopology(topologyName, config, stormTopology);
			Thread.sleep(localTimeExecution);
			cluster.killTopology(topologyName);
			cluster.shutdown();
			System.exit(0);
	}		
}
 

public static void main(String[] args) throws Exception {
	ParameterTool pt = ParameterTool.fromArgs(args);

	int par = pt.getInt("para");

	TopologyBuilder builder = new TopologyBuilder();

	builder.setSpout("source0", new Generator(pt), pt.getInt("sourceParallelism"));
	int i = 0;
	for(; i < pt.getInt("repartitions", 1) - 1;i++) {
		System.out.println("adding source"+i+" --> source"+(i+1));
		builder.setBolt("source"+(i+1), new RepartPassThroughBolt(pt), pt.getInt("sinkParallelism")).fieldsGrouping("source" + i, new Fields("id"));
	}
	System.out.println("adding final source"+i+" --> sink");

	builder.setBolt("sink", new Sink(pt), pt.getInt("sinkParallelism")).fieldsGrouping("source"+i, new Fields("id"));


	Config conf = new Config();
	conf.setDebug(false);
	//System.exit(1);
	if(pt.has("ft") || pt.has("maxPending")) {
		conf.setMaxSpoutPending(pt.getInt("maxPending", 1000));
	}

	if (!pt.has("local")) {
		conf.setNumWorkers(par);

		StormSubmitter.submitTopologyWithProgressBar("throughput-"+pt.get("name", "no_name"), conf, builder.createTopology());
	}
	else {
		conf.setMaxTaskParallelism(par);

		LocalCluster cluster = new LocalCluster();
		cluster.submitTopology("throughput", conf, builder.createTopology());

		Thread.sleep(300000);

		cluster.shutdown();
	}

}
 

public static void main(String[] args) {
    try{
        String zkhost = "wxb-1:2181,wxb-2:2181,wxb-3:2181";
        String topic = "order";
        String groupId = "id";
        int spoutNum = 3;
        int boltNum = 1;
        ZkHosts zkHosts = new ZkHosts(zkhost);//kafaka所在的zookeeper
        SpoutConfig spoutConfig = new SpoutConfig(zkHosts, topic, "/order", groupId);  // create /order /id
        spoutConfig.scheme = new SchemeAsMultiScheme(new StringScheme());
        KafkaSpout kafkaSpout = new KafkaSpout(spoutConfig);

        // HDFS bolt
        // use "|" instead of "," for field delimiter
        RecordFormat format = new DelimitedRecordFormat()
                .withFieldDelimiter("|");

        // sync the filesystem after every 1k tuples
        SyncPolicy syncPolicy = new CountSyncPolicy(1000);

        // rotate files when they reach 5MB
        FileRotationPolicy rotationPolicy = new FileSizeRotationPolicy(5.0f, FileSizeRotationPolicy.Units.MB);
        // FileRotationPolicy rotationPolicy = new TimedRotationPolicy(1.0f, TimedRotationPolicy.TimeUnit.MINUTES);

        FileNameFormat fileNameFormat = new DefaultFileNameFormat()
                .withPath("/tmp/").withPrefix("order_").withExtension(".log");

        HdfsBolt hdfsBolt = new HdfsBolt()
                .withFsUrl("hdfs://wxb-1:8020")
                .withFileNameFormat(fileNameFormat)
                .withRecordFormat(format)
                .withRotationPolicy(rotationPolicy)
                .withSyncPolicy(syncPolicy);

        TopologyBuilder builder = new TopologyBuilder();
        builder.setSpout("spout", kafkaSpout, spoutNum);
        builder.setBolt("check", new CheckOrderBolt(), boltNum).shuffleGrouping("spout");
        builder.setBolt("counter", new CounterBolt(),boltNum).shuffleGrouping("check");
        builder.setBolt("hdfs", hdfsBolt,boltNum).shuffleGrouping("counter");

        Config config = new Config();
        config.setDebug(true);

        if(args!=null && args.length > 0) {
            config.setNumWorkers(2);
            StormSubmitter.submitTopology(args[0], config, builder.createTopology());
        } else {
            config.setMaxTaskParallelism(2);

            LocalCluster cluster = new LocalCluster();
            cluster.submitTopology("Wordcount-Topology", config, builder.createTopology());

            Thread.sleep(500000);

            cluster.shutdown();
        }
    }catch (Exception e) {
        e.printStackTrace();
    }
}
 

public static void main(String[] args) throws Exception {

    TopologyBuilder builder = new TopologyBuilder();

    builder.setSpout("spout", new RandomSentence(), 5);

    builder.setBolt("split", new SplitSentence(), 8).shuffleGrouping("spout");
    builder.setBolt("count", new WordCount(), 12).fieldsGrouping("split", new Fields("word"));

    Config conf = new Config();
    conf.setDebug(true);


    if (args != null && args.length > 0) {
      conf.setNumWorkers(3);

      StormSubmitter.submitTopologyWithProgressBar(args[0], conf, builder.createTopology());
    }
    else {
      conf.setMaxTaskParallelism(3);

      LocalCluster cluster = new LocalCluster();
      cluster.submitTopology("word-count", conf, builder.createTopology());

      Thread.sleep(10000);

      cluster.shutdown();
    }
  }
 

public static void main(String[] args) throws Exception {

    TopologyBuilder builder = new TopologyBuilder();

    builder.setSpout("spout", new RandomSentenceSpout(), 5);

    builder.setBolt("split", new SplitSentence(), 8).shuffleGrouping("spout");
    builder.setBolt("count", new WordCount(), 12).fieldsGrouping("split", new Fields("word"));

    Config conf = new Config();
    conf.setDebug(true);


    if (args != null && args.length > 0) {
      conf.setNumWorkers(3);

      StormSubmitter.submitTopologyWithProgressBar(args[0], conf, builder.createTopology());
    }
    else {
      conf.setMaxTaskParallelism(3);

      LocalCluster cluster = new LocalCluster();
      cluster.submitTopology("word-count", conf, builder.createTopology());

      Thread.sleep(10000);

      cluster.shutdown();
    }
  }
 

/**
 * When run this test, please check the following through jstack and log
 * 1) for blue-spout, num of executors is 2, # of tasks is 2
 * <p>
 * Expected:
 * <p>
 * a. 2 threads uniquely named Thread-*-blue-spout-executor[*,*]
 * b. each thread will have single task
 * <p>
 * 2) for green-bolt, num of executors is 2, # of tasks is 4
 * <p>
 * Expected:
 * <p>
 * a. 2 threads uniquely named Thread-*-green-bolt-executor[*,*]
 * b. each thread will have 2 tasks
 * <p>
 * 3) for yellow-bolt, num of executors is 6, # of tasks is 6
 * <p>
 * Expected:
 * <p>
 * a. 6 threads uniquely named Thread-*-yellow-bolt-executor[*,*]
 * b. each thread will have 1 tasks
 * <p>
 * <p>
 * Continue to think:
 * <p>
 * For alter engine, if we use multiple tasks per component instead of one task per component,
 * what will the parallelism mechanism affect?
 *
 * @throws Exception
 */
@Ignore
@Test
public void testParallelism() throws Exception {
    Config conf = new Config();
    conf.setNumWorkers(2); // use two worker processes
    TopologyBuilder topologyBuilder = new TopologyBuilder();
    topologyBuilder.setSpout("blue-spout", new BlueSpout(), 2); // parallelism hint

    topologyBuilder.setBolt("green-bolt", new GreenBolt(), 2)
        .setNumTasks(4)
        .shuffleGrouping("blue-spout");

    topologyBuilder.setBolt("yellow-bolt", new YellowBolt(), 6)
        .shuffleGrouping("green-bolt");

    LocalCluster cluster = new LocalCluster();
    cluster.submitTopology("mytopology", new HashMap(), topologyBuilder.createTopology());

    while (true) {
        try {
            Thread.sleep(1000);
        } catch (Exception e) {
            e.printStackTrace();
        }
    }
}
 

public static void main(String[] args) throws Exception {
    TopologyBuilder builder = new TopologyBuilder();
    
    builder.setBolt("ClusterInfo", new ClusterInfoBolt(), 1);
    Config conf = new Config();
    conf.setNumWorkers(1);
    
    StormSubmitter.submitTopology("ClusterMonitor", conf, builder.createTopology());

}
 

public static void main(String[] args) throws Exception {
	ParameterTool pt = ParameterTool.fromArgs(args);

	int par = pt.getInt("para");

	TopologyBuilder builder = new TopologyBuilder();

	builder.setSpout("source0", new Generator(pt), pt.getInt("sourceParallelism"));

	//builder.setBolt("sink", new Sink(pt), pt.getInt("sinkParallelism")).noneGrouping("source0");
	builder.setBolt("sink", new Sink(pt), pt.getInt("sinkParallelism")).localOrShuffleGrouping("source0");


	Config conf = new Config();
	conf.setDebug(false);

	conf.setMaxSpoutPending(pt.getInt("maxPending", 1000));
	//System.exit(1);

	if (!pt.has("local")) {
		conf.setNumWorkers(par);

		StormSubmitter.submitTopologyWithProgressBar("forward-throughput-"+pt.get("name", "no_name"), conf, builder.createTopology());
	}
	else {
		conf.setMaxTaskParallelism(par);

		LocalCluster cluster = new LocalCluster();
		cluster.submitTopology("forward-throughput", conf, builder.createTopology());

		Thread.sleep(300000);

		cluster.shutdown();
	}

}