code: private function retryCommandOnFailure(CommandInterface $command, $method)
      {
          $retries = 0;
  
          SENTINEL_RETRY: {
              try {
                  $response = $this->getConnectionByCommand($command)->$method($command);
              } catch (CommunicationException $exception) {
                  $this->wipeServerList();
                  $exception->getConnection()->disconnect();
  
                  if ($retries == $this->retryLimit) {
                      throw $exception;
                  }
  
                  usleep($this->retryWait * 1000);
  
                  ++$retries;
                  goto SENTINEL_RETRY;
              }
          }
  
          return $response;
      }
docs: Retries the execution of a command upon server failure after asking a new
  configuration to one of the sentinels.
  
  @param CommandInterface $command Command instance.
  @param string           $method  Actual method.
  
  @return mixed