micrometer
https://github.com/micrometer-metrics/micrometer
Java
An application observability facade for the most popular observability tools. Think SLF4J, but for observability.
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- Issues
- Add option for time-based FunctionCounter
- GraalVM native image tests and documentation
- Improve FunctionCounter scrape error diagnostics
- Add deprecation concept to meters
- Make inclusion of `LongTaskTimer` by `DefaultMeterObservationHandler` opt-in instead of opt-out
- Add a namespaced tag (`executor.name`) to `ExecutorServiceMetrics` to avoid collisions with generic `name` tag
- Negative counter values are invalid for the Prometheus Java Client
- Add Gauges for memory usage after GC
- Jetty 12's TimedHandler marks some requests with outcome UNKNOWN
- WIP remove lastScope field and deprecated implementations from SimpleObservation
- Docs
- Java not yet supported