[EXPORTER] Error when grpc endpoint is empty #9210

Job	Run time
Bazel nortti	12m 48s
Bazel noexcept	11m 46s
Bazel asan config	14m 50s
Bazel on MacOS	20m 25s
Bazel	12m 9s
Bazel with async export	12m 35s
Bazel tsan config	12m 43s
Bazel valgrind	14m 26s
Bazel with external abseil	12m 17s
Benchmark	7m 59s
CMake test (with abseil)	4m 27s
CMake clang 15 (maintainer mode, abiv2)	14m 9s
CMake clang 15 (maintainer mode, async)	14m 5s
CMake clang 15 (maintainer mode, sync)	13m 50s
CMake do not install test (with otlp-exporter)	13m 45s
CMake gcc 13 (maintainer mode, async)	6m 48s
CMake gcc 13 (maintainer mode, sync)	6m 43s
CMake install test (with abseil)	4m 37s
CMake test (with modern protobuf,grpc and abseil)	18m 8s
CMake msvc (maintainer mode)	7m 0s
CMake msvc (maintainer mode) with C++20	8m 42s
CMake test (with opentracing-shim)	4m 21s
CMake test (build shared libraries with otlp-exporter and static gRPC)	13m 36s
CMake test (with otlp-exporter)	14m 14s
CMake test (without otlp-exporter)	4m 40s
CMake C++14 test(GCC)	4m 20s
CMake C++17 test(GCC)	4m 46s
CMake C++20 test(Clang with libc++)	9m 59s
CMake C++20 test(GCC)	8m 29s
CMake C++23 test(Clang with libc++)	9m 37s
CMake C++23 test(GCC)	8m 50s
CMake test (without otlp-exporter and with async export)	5m 3s
Code coverage	12m 13s
Copyright	4s
DocFX check	55s
Format	45s
markdown-lint	13s
misspell	3s
Plugin -> CMake	56s
CMake -> exporter proto	12m 7s
Bazel Windows	20m 52s
Plugin -> CMake Windows	7m 4s
CMake (With async export) -> exporter proto	12m 39s
CMake -> exporter proto (Build as DLL)	24m 46s
	7h 4m 44s

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