OpenTelemetry defaults to parentbased_always_on, but this is not consistent across our distributions:
parentbased_always_on is used by Node.js, .NET, Python
always_on is used by Java
If we are advertising as a no sampling solution, we should default to always_on, but still allow for customers to change it.
Using parentbased_always_on can cause data loss if customers have previously set up cloud tracing, which injects a traceparent with 00 for traceflags.
OpenTelemetry defaults to
parentbased_always_on, but this is not consistent across our distributions:parentbased_always_onis used by Node.js, .NET, Pythonalways_onis used by JavaIf we are advertising as a no sampling solution, we should default to
always_on, but still allow for customers to change it. Usingparentbased_always_oncan cause data loss if customers have previously set up cloud tracing, which injects atraceparentwith00fortraceflags.