protected void adjustClientTimeoutIfNecessary(RequestType type, Client client) {
    // In default, no need to do this
  }
Send asynchronous requests to the specified Nodes with default retry num

<p>Notice: The Nodes that failed to receive the requests will be reconnected

@param requestContext <RequestType, ResponseType> which will also contain the result
iotdb-core/node-commons/src/main/java/org/apache/iotdb/commons/client/request/AsyncRequestManager.java