Source information is not available in signalfx

Current reporter for SignalFx does not send information about “source”, that is by default equal to hostname.

SFX team’s dropwizard reporter sends this information as dedicated dimension, appended to every data point: https://github.com/signalfx/signalfx-java/blob/master/signalfx-codahale/src/main/java/com/signalfx/codahale/reporter/AggregateMetricSenderSessionWrapper.java#L195

Micrometer implementation sets source field in dataPoint, but looks like it does not work as expected, because there is no dimension with a value having this info.

Expected result:

1. It is possible to enable behavior that all reported data point has additional dimension with value equal to source() property.
2. It is also should be allowed to define tag name with sf_ prefix so that reported data can keep compatibility with already existing data (some legacy examples for signal fx used sf_source for this info)

I’m fine if this behavior would be optional and enabled by special config parameter, e.g. management.metrics.export.signalfx.reportSource

[zeldigas]

Yes, I’ll send PR this week

[rajanigk]

we used the splunk-otel-javaagent and are able to push metrics and filter it based on sf_service. When we push metrics using spring-boot and the micrometer-signalfx-registry library as per the springboot documentation at https://docs.spring.io/spring-boot/docs/current/reference/htmlsingle/#actuator.metrics.export.signalfx, not able to filter the metrics based on the application. So thought the source dimension is for that filtering. I tried with spring-boot 2.7.2 which pulls the 1.9.2 version of micrometer-registry-signalfx the source is not coming to metric so that i could filter the metric based on it. If there is any other way to filter the metric to differentiate between different applications, please do let me know.