Examples with StatsListener com.datatorrent.api.StatsListener used on opensource projects

Example 21 with StatsListener

use of com.datatorrent.api.StatsListener in project apex-core by apache.

the class PartitioningTest method testDynamicDefaultPartitioning.

//@Ignore
@Test
@SuppressWarnings("SleepWhileInLoop")
public void testDynamicDefaultPartitioning() throws Exception {
    LogicalPlan dag = new LogicalPlan();
    dag.setAttribute(LogicalPlan.CONTAINERS_MAX_COUNT, 5);
    File checkpointDir = new File(TEST_OUTPUT_DIR, "testDynamicDefaultPartitioning");
    dag.setAttribute(Context.OperatorContext.STORAGE_AGENT, new AsyncFSStorageAgent(checkpointDir.getPath(), null));
    CollectorOperator.receivedTuples.clear();
    TestInputOperator<Integer> input = dag.addOperator("input", new TestInputOperator<Integer>());
    input.blockEndStream = true;
    CollectorOperator collector = dag.addOperator("partitionedCollector", new CollectorOperator());
    collector.prefix = "" + System.identityHashCode(collector);
    dag.setOperatorAttribute(collector, OperatorContext.PARTITIONER, new StatelessPartitioner<CollectorOperator>(2));
    dag.setOperatorAttribute(collector, OperatorContext.STATS_LISTENERS, Arrays.asList(new StatsListener[] { new PartitionLoadWatch() }));
    dag.addStream("fromInput", input.output, collector.input);
    CollectorOperator singleCollector = dag.addOperator("singleCollector", new CollectorOperator());
    singleCollector.prefix = "" + System.identityHashCode(singleCollector);
    dag.addStream("toSingleCollector", collector.output, singleCollector.input);
    StramLocalCluster lc = new StramLocalCluster(dag);
    lc.setHeartbeatMonitoringEnabled(false);
    lc.runAsync();
    List<PTOperator> partitions = assertNumberPartitions(2, lc, dag.getMeta(collector));
    Set<PTContainer> containers = Sets.newHashSet();
    for (PTOperator oper : partitions) {
        containers.add(oper.getContainer());
    }
    Assert.assertTrue("Number of containers are 4", 4 == lc.dnmgr.getPhysicalPlan().getContainers().size());
    PTOperator splitPartition = partitions.get(0);
    PartitionLoadWatch.put(splitPartition, 1);
    LOG.debug("Triggered split for {}", splitPartition);
    int count = 0;
    long startMillis = System.currentTimeMillis();
    while (count == 0 && startMillis > System.currentTimeMillis() - StramTestSupport.DEFAULT_TIMEOUT_MILLIS) {
        // yield
        sleep(20);
        count += lc.dnmgr.processEvents();
    }
    partitions = assertNumberPartitions(3, lc, dag.getMeta(collector));
    Assert.assertTrue("container reused", lc.dnmgr.getPhysicalPlan().getContainers().containsAll(containers));
    // check deployment
    for (PTOperator p : partitions) {
        StramTestSupport.waitForActivation(lc, p);
    }
    PartitionLoadWatch.remove(splitPartition);
    for (PTContainer container : lc.dnmgr.getPhysicalPlan().getContainers()) {
        int memory = 0;
        for (PTOperator operator : container.getOperators()) {
            memory += operator.getBufferServerMemory();
            memory += operator.getOperatorMeta().getValue(OperatorContext.MEMORY_MB);
        }
        Assert.assertEquals("memory", memory, container.getRequiredMemoryMB());
    }
    PTOperator planInput = lc.findByLogicalNode(dag.getMeta(input));
    LocalStreamingContainer c = StramTestSupport.waitForActivation(lc, planInput);
    Map<Integer, Node<?>> nodeMap = c.getNodes();
    Assert.assertEquals("number operators " + nodeMap, 1, nodeMap.size());
    @SuppressWarnings({ "unchecked" }) TestInputOperator<Integer> inputDeployed = (TestInputOperator<Integer>) nodeMap.get(planInput.getId()).getOperator();
    Assert.assertNotNull("" + nodeMap, inputDeployed);
    // add tuple that matches the partition key and check that each partition receives it
    ArrayList<Integer> inputTuples = new ArrayList<>();
    LOG.debug("Number of partitions {}", partitions.size());
    for (PTOperator p : partitions) {
        // default partitioning has one port mapping with a single partition key
        LOG.debug("Partition key map size: {}", p.getPartitionKeys().size());
        inputTuples.add(p.getPartitionKeys().values().iterator().next().partitions.iterator().next());
    }
    inputDeployed.testTuples = Collections.synchronizedList(new ArrayList<List<Integer>>());
    inputDeployed.testTuples.add(inputTuples);
    for (PTOperator p : partitions) {
        Integer expectedTuple = p.getPartitionKeys().values().iterator().next().partitions.iterator().next();
        List<Object> receivedTuples;
        int i = 0;
        while ((receivedTuples = CollectorOperator.receivedTuples.get(collector.prefix + p.getId())) == null || receivedTuples.isEmpty()) {
            if (i++ % 100 == 0) {
                LOG.debug("Waiting for tuple: " + p);
            }
            sleep(10);
        }
        Assert.assertEquals("received " + p, Arrays.asList(expectedTuple), receivedTuples);
    }
    // single output operator to receive tuple from each partition
    List<PTOperator> operators = lc.getPlanOperators(dag.getMeta(singleCollector));
    Assert.assertEquals("number output operator instances " + operators, 1, operators.size());
    // ensure redeploy
    StramTestSupport.waitForActivation(lc, operators.get(0));
    List<Object> receivedTuples;
    while ((receivedTuples = CollectorOperator.receivedTuples.get(singleCollector.prefix + operators.get(0).getId())) == null || receivedTuples.size() < inputTuples.size()) {
        LOG.debug("Waiting for tuple: " + operators.get(0) + " expected: " + inputTuples + " received: " + receivedTuples);
        sleep(20);
    }
    Assert.assertEquals("output tuples " + receivedTuples, Sets.newHashSet(inputTuples), Sets.newHashSet(receivedTuples));
    lc.shutdown();
}