[Cyberduck-trac] [Cyberduck] #1149: Uploaded files changed to zero length upon completion

[Cyberduck]

#1149: Uploaded files changed to zero length upon completion
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 Reporter:  pentaphobe  |       Owner:  dkocher                    
     Type:  defect      |      Status:  new                        
 Priority:  highest     |   Milestone:                             
Component:  core        |     Version:  2.7.3                      
 Severity:  blocker     |    Keywords:  upload time out large files
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 This is a repeatable bug.

 ''(Uploading to a MediaTemple gridserver host (Pure-FTPd))''

 Larger files complete upload, and then an Operation Timed Out dialog is
 presented ("cancel" and "try again" buttons)
 Both buttons result in the file being reduced to zero length.



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 '''Notes:'''

 I have confirmed that the file is successfully being uploaded each time,
 if I ssh in (or connect using another ftp client) while the error dialog
 is on screen, I can rename the file and it will stay intact.

 If I copy the file, I will have the original reduced to zero length, and
 my copy will be intact (obviously)

 Attempted courses of action:

  * made sure that '''Preferences : Transfers : Uploads : Duplicate
 Files''' was set to "Try to resume"
  * unchecked '''Preferences : Transfers : Permissions : Uploads : Change
 Permissions''' (in case a separate thread was timing out and causing the
 whole operation to be considered failed)
  * '''Preferences : Advanced : Send NOOP''' is confirmed on

 Actions I have not attempted:

  * Uncheck '''Preferences : Transfers : Timestamps : Preserve Modification
 Date'''


 Like I said, this is repeatable - as I've done it for about a dozen
 uploads, trying different combinations - only had the time to register for
 ticket submission now.

 The first time it happened was after uploading a 900mb archive at 35kb/s
 on a time-critical project.
 As much as this was a problem, I'm at least tech savvy enough to have a
 workaround - but others may not, hence the high priority on this ticket.


 ----

 This bug only occurs with large files.

 I hypothesize that the primary connection thread (browser) may be hitting
 the 15 minute timeout, and some flag is affecting the transfer threads
 too.

 Since the "send NO OP" option is set, I wouldn't imagine this being the
 case, but without reviewing source I can only guess.

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Ticket URL: <http://trac.cyberduck.ch/ticket/1149>
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