Sensor (Data Collection)
Micrometer is a simple application metrics facade for the JVM. It has become the defacto standard in the Java ecosystem and is integrated into SpringBoot. Read more on Micrometer at micrometer.io.
Instana supports Micrometer without any additional configuration. The sensor detects Micrometer usage and automatically collects metrics. No additional Maven dependency needed!
All metric graphs will show up on the JVM dashboard.
- We are gathering all types of metrics:
Timer: the total time of recorded events scaled to milliseconds.
Counter: the cumulative count since this counter was created.
Gauge: the current value.
DistributionSummary: the total amount of all recorded events.
LongTaskTimer: the current number of tasks being executed.
FunctionCounter: the cumulative count since this counter was created.
FunctionTimer: the total time of all occurrences of the timed event.
TimeGauge: the current value, scaled to the appropriate base unit.
More details for Micrometer metrics.
- Tags are contained inside of metric names, concatenated in form of tagname=tagvalue. E.g. in the following screenshot tags are exception=None, method=GET, outcome=SUCCESS, status=200, version=1.0.
- There are more examples of metrics: