opentelemetry-java/sdk-extensions/jfr-events
Bogdan Drutu 95163d71fb
Avoid using mutable addSpanProcessor when trivial to change (#2365)
* Run go mod tidy on the master

* Fixes

Co-authored-by: Anuraag Agrawal <aanuraag@amazon.co.jp>
2020-12-21 12:22:36 +09:00
..
src Avoid using mutable addSpanProcessor when trivial to change (#2365) 2020-12-21 12:22:36 +09:00
README.md Prototype for JFR events using Context interceptor (#963) 2020-11-24 14:49:02 -08:00
build.gradle Use normal filesystem-based Gradle paths. (#2332) 2020-12-18 12:07:33 +09:00

README.md

OpenTelemetry SDK Extension Java Flight Recorder (JFR) Events

Create JFR events that can be recorded and viewed in Java Mission Control (JMC).

  • Creates Open Telemetry Tracing/Span events for spans
    • The thread and stracktrace will be of the thead ending the span which might be different than the thread creating the span.
    • Has the fields
      • Operation Name
      • Trace ID
      • Parent Span ID
      • Span ID
  • Creates Open Telemetry Tracing/Scope events for scopes
    • Thread will match the thread the scope was active in and the stacktrace will be when scope was closed
    • Multiple scopes might be collected for a single span
    • Has the fields
      • Trace ID
      • Span ID
  • Supports the Open Source version of JFR in Java 11.
    • Might support back port to OpenJDK 8, but not tested and classes are built with JDK 11 bytecode.