Docs » Drill down into service performance with indexed tags and MetricSets in SignalFx µAPM

Drill down into service performance with indexed tags and MetricSets in SignalFx µAPM 🔗


The original µAPM product, released in 2019, is now called µAPM Previous Generation (µAPM PG). In the documentation, µAPM now refers to the product released on March 31, 2020.

If you are using µAPM Previous Generation (µAPM PG), see µAPM PG Traces, Spans, Metrics, and Metadata.

Use Troubleshooting MetricSets to get visual insights into the performance of services you monitor with µAPM. Index span tags associated with services to generate Troubleshooting MetricSets for services.

µAPM generates groups of metric time-series called MetricSets for indexed tags. Indexed tags generate two types of MetricSets: Monitoring and Troubleshooting. Monitoring MetricSets are a subset of Troubleshooting MetricSets that µAPM uses for charts and detectors to create alerts. µAPM uses Troubleshooting MetricSets to visualize and filter performance data about your services. For more information about MetricSets in µAPM, see MetricSets in SignalFx µAPM.

Use indexed tags to monitor and drill down into the performance of your environment:

  • Break down and compare values of indexed span tags for services in your environment. For example, if you break down the indexed span tag Endpoint for a service, you can see every endpoint other services call for the service you’re breaking down.
  • View metrics for specific span tag values for a service. For example, you can view the request rate, error rate, root cause error rate, and latency metrics for each value of a span tag you index.

Before you can index span tags, you have to be collecting spans with tags in SignalFx. For more information, see Add span tags to services in SignalFx µAPM.

For information about how µAPM defines span tags and which span tags to index, see Which span tags to index in SignalFx µAPM.

To index span tags so µAPM generates Troubleshooting MetricSets, see Index span tags to generate Troubleshooting MetricSets for SignalFx µAPM services.