Stackdriver metrics not ending up in Stackdriver

Micrometer version: 1.1.0 Spring boot version: 5.1.0 JDK version: 11

There seem to be multiple issues with the Stackdriver integration of Micrometer:

1. Metrics are created, but are not under the Global resource it seems. (The ones with global were created using our current solution) See also the screenshot below.
2. When debugging, the StackdriverMeterRegistry#publish call is just done once. With the LoggingMeterRegistry, the publish-method is called every interval.
3. Any way of using Spring integration with actuator?
4. Feature request: Can we use the prefix for the custom metric, so instead of custom/jvm/buffer/etc something like custom/{prefix}/jvm/buffer/etc? This makes it much easier to distinguish between services running in the same project.
5. I’m also missing the documentation right now. 😉

See also the demo zip I have added for my sample code. monitoringdemo.zip

[itzg]

I was able to confirm that after filtering down to just a single gauge metric its value properly flowed to Stackdriver. Before that I wasn’t able to confirm where the thread was dying, but stepping through the debugger it was indeed dying somewhere before reaching

https://github.com/micrometer-metrics/micrometer/blob/master/implementations/micrometer-registry-stackdriver/src/main/java/io/micrometer/stackdriver/StackdriverMeterRegistry.java#L154

[amohabir]

So the following line throws an ArrayOutOfBoundsException, when creating a new distribution it seems. After the exception is thrown, the thread is seemingly killed and never used again. This happens when a time series for a meter needs to be created.

https://github.com/micrometer-metrics/micrometer/blob/master/implementations/micrometer-registry-stackdriver/src/main/java/io/micrometer/stackdriver/StackdriverMeterRegistry.java#L391