As applications run in production, you’ll need to find out what’s happening. You might want to know if you’re overloading the hardware, moving to the wrong feature in an A/B test or, on the mobile side, even such simple contingencies as whether the battery is running out.
Developing an app to send information about itself means adding instrumentation. Apps can send such telemetry as OpenTelemetry (OTel) project. An added benefit is, if most applications in a given language need to observe the same types of operations and workflows, developers building on the OTel standard can identify and build
David Rifkin