使用千分尺发送数据的自定义指标Datadog注册表未显示在Datadog指标摘要中

Question

我想发送自定义指标使用io.micrometer.datadog.DatadogMeter注册表到datadog.下面是代码片段的方法，我在其中发出指标到Datadog.

@Override
    public void emitMetrices(Map<String, String> dataPoints) {
        try {
            logger.info("inside emitMetrices from monitoring service with enableCustomMetrics: {}",
                    enableCustomMetrics);
            if (!isEnabled()) {
                logger.warn("Metrics are diabled");
                return;
            }

            // user supplied metrics
            Set<Tag> tags = new LinkedHashSet<Tag>();
            Set<Entry<String, String>> dataPointEntries = dataPoints.entrySet();
            for (Entry<String, String> entry : dataPointEntries) {
                String key = entry.getKey() == null ? MetricConstants.UNKNOWN_TEXT : entry.getKey();
                String value = entry.getValue() == null ? MetricConstants.UNKNOWN_TEXT : entry.getValue();
                tags.add(new ImmutableTag(key, value));
            }

            String tenantMoniker = MetricConstants.UNKNOWN_TEXT;
            String stackName = MetricConstants.UNKNOWN_TEXT;

            TenantDescriptor tenant = TenantContextHolder.get();
            if (tenant != null) {
                tenantMoniker = tenant.getTenantMoniker();
                stackName = tenant.getTierName();
            } else {
                logger.warn("Tenant is not available");
            }

            Tag tenantTag = new ImmutableTag(MetricConstants.TENANT_MONIKER, tenantMoniker);
            Tag stackNameTag = new ImmutableTag(MetricConstants.STACK_NAME, stackName);
            Tag serviceNameTag = new ImmutableTag(MetricConstants.SERVICE_NAME, serviceName);

            tags.add(tenantTag);
            tags.add(stackNameTag);
            tags.add(serviceNameTag);

            logger.info("sending metric to datadog");
            Counter counter = meterRegistry.counter(METRIC_NAME, tags);
            counter.increment();

            logger.info("metric sent successfully: {}", METRIC_NAME);

        } catch (Exception e) {
            logger.error("Error publishing metrics", e);
        }

    }

我可以看到日志“metric sent successfully”，没有错误，但这个自定义指标没有显示在Datadog UI的metrics summary下。我错过什么了吗？

Answer 1

MeterRegistry已经实现了如何发送自定义度量（发布到DataDog）参见代码https://github.com/micrometer-metrics/micrometer/blob/master/implementations/micrometer-registry-datadog/src/main/java/io/micrometer/datadog/DatadogMeterRegistry.java#L133

看起来您正在尝试向每个指标添加公共标签。也许您不应该实现自己的DataDog注册表，而是使用提供的注册表通过配置发送指标并设置公共标签：

registry.config().commonTags(Arrays.asList(
  Tag.of(MetricConstants.TENANT_MONIKER, tenant.getTenantMoniker()), 
  Tag.of(MetricConstants.STACK_NAME, stackName)
));