message: Set heartbeat log level to debug level
diff: @@ -38,7 +38,7 @@ void HBProcessor::process(const cpp2::HBReq& req) {
  return;
  }
  - LOG(INFO) << "Receive heartbeat from " << host
  + VLOG(3) << "Receive heartbeat from " << host
  << ", role = " << meta::cpp2::_HostRole_VALUES_TO_NAMES.at(req.get_role());
  auto ret = kvstore::ResultCode::SUCCEEDED;
  if (req.get_role() == cpp2::HostRole::STORAGE) {
  