message: cannot use dgram socket when redirecting standard output.
diff: @@ -248,7 +248,10 @@ static PHP_METHOD(swoole_process, __construct)
  process->redirect_stdin = 1;
  process->redirect_stdout = 1;
  process->redirect_stderr = 1;
  - pipe_type = 2;
  + /**
  + * Forced to use stream pipe
  + */
  + pipe_type = 1;
  }
  if (pipe_type > 0)
  