WS FTP File transfer failure on files > 20000 bytes

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WS FTP File transfer failure on files > 20000 bytesExpand / Collapse
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Posted 7/7/2008 11:11:09 AM
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Last Login: 7/7/2008 11:01:29 AM
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Hi,

I am hoping that someone out there is able to give me some clues on this one as i am completely stuck!  We have an automated process that uses WS ftp scripts to ftp files across from an external client.  This works fine on any files less than 20000 bytes, but on any files bigger than this, it gets to 20,000 bytes, hangs for a moment, then stops.

There are no errors in the logs, and it completes as if the file was transferred successfully, even though it is missing the extra bytes.

Here are the logs from the transfer attempt :

{\rtf1\ansi\ansicpg1252\deff0\deflang1033{\fonttbl{\f0\fnil MS Shell Dlg;}}{\colortbl ;\red0\green0\blue0;\red0\green128\blue0;\red128\green128\blue0;\red255\green0\blue0;\red0\green0\blue128;\red255\green255\blue255;}\viewkind4\uc1\pard\f0\fs17
\cf2 Finding Host <name removed>.com ...
\par\cf2 Connecting to <ip removed>
\par\cf2 Connected to <ip removed> in 0.062500 seconds, Waiting for Server Response
\par\cf1 Server Welcome: SSH-2.0-GXSSSHD_Comments
\par\cf1 Client Version: SSH-2.0-WS_FTP-9.01-2007.02.09
\par\cf2 DSS Signature Verified
\par\cf2 Session Keys Created
\par\cf2 Ciphers Created
\par\cf2 New Client->Server ciphers in place.
\par\cf2 New Client->Server ciphers in place.
\par\cf2 Completed SSH Key Exchange.  New Keys in place.
\par\cf2 Please login with user ID and password.
\par\cf2 User Authenticated OK!
\par\cf2 Completed SSH User Authentication.
\par\cf2 Started subsystem "sftp" on channel 0760a2ce
\par\cf2 SFTP Protocol Version 3 OK
\par\cf2 sftp protocol initialized
\par\cf2 Changing remote directory to "/<name removed>"
\par\cf2 The operation completed
\par\cf2 Getting Dirlisting
\par\cf2 # transferred 11045 bytes in 0.250 seconds, 345.156 Kbps ( 43.145 Kbps), transfer succeeded.
\par\cf2 The operation completed
\par\cf2 Opening remote file <filename removed>" for reading
\par\cf2 Downloading to local file "C:\\Documents and Settings\\Administrator\\Application Data\\Ipswitch\\WS_FTP\\Storage\<filename removed>"
\par\cf2 # transferred 20000 bytes in 0.063 seconds, 2500.000 Kbps ( 312.500 Kbps), transfer succeeded.
\par\cf2 The operation completed
\par\cf5 Transfer request completed with status: Finished
\par\cf2 Sending channel close message for channel 0760a2ce
\par\cf1 SSH Transport closed.
\par\cf1 Connection closed.  Ready for next connection.
\par}

the actual file size is 23540 bytes.

Any help you can give me on this would be greatfully received.

Thanks in advance

Mark

Post #45194
Posted 7/15/2008 1:03:50 PM
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Hi Mark, I've had this issue too, and so have others...  I've had WS_FTP's sftp client corrupt my files before.  I didn't find out until all kinds of problems started happening with those files after the transfer.  I started using WinSCP now as a client.  For scripting secure transfers, I've been using Cygwin's openssh package (which has sftp) with key authentication.

One post on this subject said that if there is the equivalent of a "ctrl-v" ascii character in a binary file, the transfer will halt...  I'm not sure if that's true but in any case I don't trust WS_FTP sftp to transfer my files properly anymore.

Post #45386
Posted 8/6/2008 12:22:26 PM


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Last Login: Today @ 3:11:41 PM
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If you have an active service agreement, login to http://www.myipswitch.com and download the latest version of WS_FTP Professional. Other users have corrected this by installing v2007.1

Travis G.
Ipswitch, Inc.
Post #45997
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