otlp http exporter no need to import grpc

[wxl374]

I add traces in my project which imported an old version grpc, but I got compile error for lack of google.golang.org/grpc/backoff (imported by options.go) directory. I tried to upgrade grpc, but there are some compatible issues with my project (we implemented our own balancer because of this grpc issue). There is no need to import grpc when we use http exporter, maybe we should separate http exporter and grpc exporter in different directories. Any ideas to solve this problem?

[dmathieu]

The otlptrace package has two subpackages, one for HTTP and the other for GRPC.
Though this used not to be the case, so maybe you're still using an old version of the library?

Do you have a code sample showing how you're using the exporter?

[wxl374]

I use version v1.3.0
I just copy code from https://github.com/open-telemetry/opentelemetry-go/blob/main/exporters/otlp/otlptrace/otlptracehttp/example_test.go, and invoke

opentelemetry-go/exporters/otlp/otlptrace/otlptracehttp/example_test.go

Line 67 in 73edf3d

func installExportPipeline(ctx context.Context) func() {

(modify the prefix "i" to "I") in my project.