Examples with TimeValue co.cask.cdap.api.dataset.lib.cube.TimeValue used on opensource projects

Example 11 with TimeValue

use of co.cask.cdap.api.dataset.lib.cube.TimeValue in project cdap by caskdata.

the class AbstractStreamService method getStreamEventsSize.

/**
   * Get the size of events ingested by a stream since its creation, in bytes.
   * @param streamId id of the stream
   * @return Size of events ingested by a stream since its creation
   * @throws IOException when getting an error retrieving the metric
   */
protected long getStreamEventsSize(StreamId streamId) throws IOException {
    MetricDataQuery metricDataQuery = new MetricDataQuery(0L, TimeUnit.MILLISECONDS.toSeconds(System.currentTimeMillis()), Integer.MAX_VALUE, "system.collect.bytes", AggregationFunction.SUM, ImmutableMap.of(Constants.Metrics.Tag.NAMESPACE, streamId.getNamespace(), Constants.Metrics.Tag.STREAM, streamId.getEntityName()), ImmutableList.<String>of());
    try {
        Collection<MetricTimeSeries> metrics = metricStore.query(metricDataQuery);
        if (metrics == null || metrics.isEmpty()) {
            // Data is not yet available, which means no data has been ingested by the stream yet
            return 0L;
        }
        MetricTimeSeries metric = metrics.iterator().next();
        List<TimeValue> timeValues = metric.getTimeValues();
        if (timeValues == null || timeValues.size() != 1) {
            throw new IOException("Should collect exactly one time value");
        }
        return timeValues.get(0).getValue();
    } catch (Exception e) {
        Throwables.propagateIfInstanceOf(e, IOException.class);
        throw new IOException(e);
    }
}

Example 12 with TimeValue

use of co.cask.cdap.api.dataset.lib.cube.TimeValue in project cdap by caskdata.

the class MetricStoreRequestExecutor method queryTimeSeries.

private Iterator<TimeValue> queryTimeSeries(MetricDataQuery query) throws Exception {
    Collection<MetricTimeSeries> result = metricStore.query(query);
    if (result.size() == 0) {
        return new ArrayList<TimeValue>().iterator();
    }
    // since there's no group by condition, it'll return single time series always
    MetricTimeSeries timeSeries = result.iterator().next();
    return Iterables.transform(timeSeries.getTimeValues(), new Function<TimeValue, TimeValue>() {

        @Override
        public TimeValue apply(TimeValue input) {
            return new TimeValue(input.getTimestamp(), input.getValue());
        }
    }).iterator();
}

Example 13 with TimeValue

use of co.cask.cdap.api.dataset.lib.cube.TimeValue in project cdap by caskdata.

the class MetricsProcessorServiceTest method testMetricsProcessor.

@Test
public void testMetricsProcessor() throws Exception {
    injector.getInstance(TransactionManager.class).startAndWait();
    injector.getInstance(DatasetOpExecutor.class).startAndWait();
    injector.getInstance(DatasetService.class).startAndWait();
    zkServer = InMemoryZKServer.builder().build();
    zkServer.startAndWait();
    Properties kafkaConfig = generateKafkaConfig(tmpFolder1);
    EmbeddedKafkaServer kafkaServer = new EmbeddedKafkaServer(kafkaConfig);
    kafkaServer.startAndWait();
    ZKClientService zkClient = ZKClientService.Builder.of(zkServer.getConnectionStr()).build();
    zkClient.startAndWait();
    KafkaClientService kafkaClient = new ZKKafkaClientService(zkClient);
    kafkaClient.startAndWait();
    final MetricStore metricStore = injector.getInstance(MetricStore.class);
    Set<Integer> partitions = new HashSet<>();
    for (int i = 0; i < PARTITION_SIZE; i++) {
        partitions.add(i);
    }
    KafkaPublisher publisher = kafkaClient.getPublisher(KafkaPublisher.Ack.FIRE_AND_FORGET, Compression.SNAPPY);
    final KafkaPublisher.Preparer preparer = publisher.prepare(TOPIC_PREFIX);
    // Wait for metrics to be successfully published to Kafka. Retry if publishing fails.
    Tasks.waitFor(true, new Callable<Boolean>() {

        @Override
        public Boolean call() throws Exception {
            return publishKafkaMetrics(METRICS_CONTEXT, expected, preparer);
        }
    }, 15, TimeUnit.SECONDS, "Failed to publish correct number of metrics to Kafka");
    // Start KafkaMetricsProcessorService after metrics are published to Kafka
    KafkaMetricsProcessorService kafkaMetricsProcessorService = new KafkaMetricsProcessorService(kafkaClient, injector.getInstance(MetricDatasetFactory.class), new MetricsMessageCallbackFactory(injector.getInstance(SchemaGenerator.class), injector.getInstance(DatumReaderFactory.class), metricStore, 4), TOPIC_PREFIX, partitions, new NoopMetricsContext());
    kafkaMetricsProcessorService.startAndWait();
    // Intentionally set queue size to a small value, so that MessagingMetricsProcessorService
    // internally can persist metrics when more messages are to be fetched
    MessagingMetricsProcessorService messagingMetricsProcessorService = new MessagingMetricsProcessorService(injector.getInstance(MetricDatasetFactory.class), TOPIC_PREFIX, messagingService, injector.getInstance(SchemaGenerator.class), injector.getInstance(DatumReaderFactory.class), metricStore, 1000L, 5, partitions, new NoopMetricsContext(), 50, 0);
    messagingMetricsProcessorService.startAndWait();
    long startTime = TimeUnit.MILLISECONDS.toSeconds(System.currentTimeMillis());
    // Publish metrics with messaging service and record expected metrics
    for (int i = 10; i < 20; i++) {
        publishMessagingMetrics(i, startTime, METRICS_CONTEXT, expected, SYSTEM_METRIC_PREFIX, MetricType.COUNTER);
    }
    Thread.sleep(500);
    // Stop and restart messagingMetricsProcessorService
    messagingMetricsProcessorService.stopAndWait();
    // Intentionally set queue size to a large value, so that MessagingMetricsProcessorService
    // internally only persists metrics during terminating.
    messagingMetricsProcessorService = new MessagingMetricsProcessorService(injector.getInstance(MetricDatasetFactory.class), TOPIC_PREFIX, messagingService, injector.getInstance(SchemaGenerator.class), injector.getInstance(DatumReaderFactory.class), metricStore, 500L, 100, partitions, new NoopMetricsContext(), 50, 0);
    messagingMetricsProcessorService.startAndWait();
    // Publish metrics after MessagingMetricsProcessorService restarts and record expected metrics
    for (int i = 20; i < 30; i++) {
        publishMessagingMetrics(i, startTime, METRICS_CONTEXT, expected, SYSTEM_METRIC_PREFIX, MetricType.GAUGE);
    }
    final List<String> missingMetricNames = new ArrayList<>();
    // are retrieved when timeout occurs, print out the missing metrics
    try {
        Tasks.waitFor(true, new Callable<Boolean>() {

            @Override
            public Boolean call() throws Exception {
                return canQueryAllMetrics(metricStore, METRICS_CONTEXT, expected, missingMetricNames);
            }
        }, 10000, TimeUnit.MILLISECONDS, "Failed to get all metrics");
    } catch (TimeoutException e) {
        Assert.fail(String.format("Metrics: [%s] cannot be found in the metrics store.", Joiner.on(", ").join(missingMetricNames)));
    }
    // Query metrics from the metricStore and compare them with the expected ones
    assertMetricsResult(metricStore, METRICS_CONTEXT, expected);
    // Query for the 5 counter metrics published with messaging between time 5 - 14
    Collection<MetricTimeSeries> queryResult = metricStore.query(new MetricDataQuery(5, 14, 1, Integer.MAX_VALUE, ImmutableMap.of(SYSTEM_METRIC_PREFIX + COUNTER_METRIC_NAME, AggregationFunction.SUM), METRICS_CONTEXT, ImmutableList.<String>of(), null));
    MetricTimeSeries timeSeries = Iterables.getOnlyElement(queryResult);
    Assert.assertEquals(5, timeSeries.getTimeValues().size());
    for (TimeValue timeValue : timeSeries.getTimeValues()) {
        Assert.assertEquals(1L, timeValue.getValue());
    }
    // Stop services and servers
    kafkaMetricsProcessorService.stopAndWait();
    messagingMetricsProcessorService.stopAndWait();
    kafkaServer.stopAndWait();
    zkServer.stopAndWait();
    // Delete all metrics
    metricStore.deleteAll();
}

Example 14 with TimeValue

use of co.cask.cdap.api.dataset.lib.cube.TimeValue in project cdap by caskdata.

the class MetricsQueryHelper method decorate.

private MetricQueryResult.TimeValue[] decorate(List<TimeValue> points) {
    MetricQueryResult.TimeValue[] timeValues = new MetricQueryResult.TimeValue[points.size()];
    int k = 0;
    for (TimeValue timeValue : points) {
        timeValues[k++] = new MetricQueryResult.TimeValue(timeValue.getTimestamp(), timeValue.getValue());
    }
    return timeValues;
}

Example 15 with TimeValue

use of co.cask.cdap.api.dataset.lib.cube.TimeValue in project cdap by caskdata.

the class PreviewDataStreamsTest method getTotalMetric.

private long getTotalMetric(Map<String, String> tags, String metricName, PreviewRunner runner) {
    MetricDataQuery query = new MetricDataQuery(0, 0, Integer.MAX_VALUE, metricName, AggregationFunction.SUM, tags, new ArrayList<String>());
    Collection<MetricTimeSeries> result = runner.getMetricsQueryHelper().getMetricStore().query(query);
    if (result.isEmpty()) {
        return 0;
    }
    List<TimeValue> timeValues = result.iterator().next().getTimeValues();
    if (timeValues.isEmpty()) {
        return 0;
    }
    return timeValues.get(0).getValue();
}