Internal Diagnostic Metrics
January 22, 2021 ยท View on GitHub
This SDK automatically collects a set of diagnostic metrics that allow you to monitor your WavefrontTracer instance. These metrics are collected once every minute and are reported to Wavefront using your WavefrontSpanReporter instance.
The list of the diagnostic metrics that are collected are given below:
| Metric Name | Metric Type | Description |
|---|---|---|
| ~sdk.java.opentracing.reporter.queue.size | Gauge | Spans in the in-memory reporting buffer. |
| ~sdk.java.opentracing.reporter.queue.remaining_capacity | Gauge | Remaining capacity of the in-memory reporting buffer. |
| ~sdk.java.opentracing.reporter.spans.received.count | Delta Counter | Spans received by the reporter. |
| ~sdk.java.opentracing.reporter.spans.dropped.count | Delta Counter | Spans dropped during reporting. |
| ~sdk.java.opentracing.reporter.errors.count | Delta Counter | Exceptions encountered while reporting spans. |
| ~sdk.java.opentracing.spans.discarded.count | Delta Counter | Spans that are discarded as a result of sampling. |
The above metrics are reported with the same source and application tags that are specified for your WavefrontTracer and WavefrontSpanReporter.
For information regarding diagnostic metrics for your WavefrontSender instance, see RED metrics.