[jira] [Created] (NET-499) FTP transfer to mainframe extremely slow

[Denis Molony (JIRA)]

Denis Molony created NET-499:
--------------------------------

             Summary: FTP transfer to mainframe extremely slow
                 Key: NET-499
                 URL: https://issues.apache.org/jira/browse/NET-499
             Project: Commons Net
          Issue Type: Bug
          Components: FTP
    Affects Versions: 3.2
         Environment: Windows and OSX
            Reporter: Denis Molony


FTPClient.storeFile() is incredibly slow. I have two example files, one FB 
(4MB) and one in ravel VB (94K) format. Under 3.1 both files transfer in less 
than a second (FB:328ms, VB:112ms). Under 3.2 the VB transfer takes 30,000ms, 
and the FB transfer takes too long to find out (> 15 minutes).

I have checked the FB file on the mainframe after cancelling the transfer and 
it is always partly there. But the length varies, suggesting that it hasn't hit 
the same error each time.

I have built two jar files, one with 3.1 and the other with 3.2. These jars are 
available. The code is as follows:

<code>
public class FTPTransfer
{
  public static void transfer (String name, FTPClient ftp, File file) throws 
IOException
  {
    FileInputStream fis = new FileInputStream (file);
    long start = System.currentTimeMillis ();

    if (ftp.storeFile (name, fis))
      System.out.print ("File transferred");
    else
      System.out.print ("Transfer failed");

    System.out.printf (" in %d ms%n", (System.currentTimeMillis () - start));
    fis.close ();
  }

  public static void main (String[] args)
  {
    File file1 = null;
    File file2 = null;

    if (System.getProperty ("os.name").toLowerCase ().startsWith ("mac"))
    {
      file1 = new File ("/Users/Denis/comtest/DENIS-018.SRC");   // ravel file 
format
      file2 = new File ("/Users/Denis/comtest/MOLONYD.NCD");     // FB252 format
    }
    else
    {
      file1 = new File ("D:/comtest/DENIS-018.SRC");   // ravel file format
      file2 = new File ("D:/comtest/MOLONYD.NCD");     // FB252 format
    }

    FTPClient ftp = new FTPClient ();
    ftp.addProtocolCommandListener (new PrintCommandListener (new PrintWriter 
(System.out), true));

    try
    {
      ftp.connect ("server");

      int reply = ftp.getReplyCode ();

      if (!FTPReply.isPositiveCompletion (reply))
      {
        ftp.disconnect ();
        System.err.println ("FTP server refused connection.");
        System.exit (1);
      }

      ftp.login ("user", "pw");
      FTPFile[] files = ftp.listFiles ();
      System.out.printf ("%nListing contains %d files%n%n", files.length);

      ftp.setFileType (FTP.BINARY_FILE_TYPE);

      ftp.setFileStructure (FTP.RECORD_STRUCTURE);
      transfer ("TEST.VB", ftp, file1);

      ftp.setFileStructure (FTP.FILE_STRUCTURE);
      transfer ("TEST.FB", ftp, file2);

      ftp.logout ();
    }
    catch (IOException e)
    {
      e.printStackTrace ();
    }
    finally
    {
      if (ftp.isConnected ())
      {
        try
        {
          ftp.disconnect ();
        }
        catch (IOException ioe)
        {
        }
      }
    }
  }
}

</code>

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