Log error to stderr

test/cpp/util/proto_reflection_descriptor_database.cc

@@ -44,14 +44,17 @@ ProtoReflectionDescriptorDatabase::~ProtoReflectionDescriptorDatabase() {
     Status status = stream_->Finish();
     if (!status.ok()) {
       if (status.error_code() == StatusCode::UNIMPLEMENTED) {
-        gpr_log(GPR_INFO,
+        fprintf(stderr,
                 "Reflection request not implemented; "
-                "is the ServerReflection service enabled?");
+                "is the ServerReflection service enabled?\n");
+      } else {
+        fprintf(stderr,
+                "ServerReflectionInfo rpc failed. Error code: %d, message: %s, "
+                "debug info: %s\n",
+                static_cast<int>(status.error_code()),
+                status.error_message().c_str(),
+                ctx_.debug_error_string().c_str());
       }
-      gpr_log(GPR_INFO,
-              "ServerReflectionInfo rpc failed. Error code: %d, details: %s",
-              static_cast<int>(status.error_code()),
-              status.error_message().c_str());
     }
   }
 }