Analyze service performance with Tag Spotlight π
Use Tag Spotlight to analyze the performance of your services in Splunk Observability Cloud to discover trends that contribute to high latency or error rates with span tags you have indexed. See Index span tags to create Troubleshooting MetricSets for more steps to index span tags.
For every service, Tag Spotlight provides time-series charts for request, error, and duration (RED) metrics for every value of each indexed span tag. Request and error charts display the total number of requests, errors, and root cause errors, and duration charts display p50, p90, and p99 latency. These values are based on Troubleshooting MetricSets (TMS), which Splunk APM generates for every indexed span tag. When you select span tag values or a time range, you can view relevant traces to learn more about outlying incidents.
The following image shows the a chart for requests and errors and a chart for duration for an example frontend
service. Under the charts there are bar charts with RED metrics for each indexed span tag.
To learn how to index span tags to generate Troubleshooting MetricSets, see Index span tags to create Troubleshooting MetricSets. For a general overview of MetricSets in APM, see Learn about MetricSets in APM.
Learn more π
To view a detailed examples using Tag Spotlight, see: