message: Set GRPC fail_fast to false for OSS TensorFlow users
diff: @@ -79,8 +79,12 @@ class RPCState : public GrpcClientCQTag {
  void StartCall() {
  context_.reset(new ::grpc::ClientContext());
  +#if defined(PLATFORM_GOOGLE)
  + // TODO(b/140260119): set fail_fast to false
  context_->set_wait_for_ready(!fail_fast_);
  -
  +#else
  + context_->set_wait_for_ready(true);
  +#endif // PLATFORM_GOOGLE
  if (timeout_in_ms_ > 0) {
  context_->set_deadline(
  gpr_time_from_millis(timeout_in_ms_, GPR_TIMESPAN));
  