http/protobuf as a default protocol

[kes2464]

Just noticed that from v2.0.0, http/protobuf is the default exporter protocol.

If I understood it correctly, it is to align with the spec, however the spec also said it is ok if there's a good reason to stay with grpc for individual SDKs.

I came across these discussions and understood why the spec wants http/protobuf to be the default

open-telemetry/opentelemetry-specification#1885
open-telemetry/opentelemetry-specification#1969

but I am just wondering if there was any other reason such as performance, grpc's own issue or anything else that also led to this decision for java SDK/agent specifically?

If it was just purely to align with the spec, I will probably keep using grpc.

Thanks

[laurit]

As far as I remember it was mostly to align with the spec. If you so wish you can check the notes from the SIG meeting https://docs.google.com/document/d/1WK9h4p55p8ZjPkxO75-ApI9m0wfea6ENZmMoFRvXSCw and watch the recordings of the relevant SIG meetings.