Mailing List Archive: [Bug 844] the client copy is over written during scp

[Bug 844] the client copy is over written during scp

bugzilla-daemon at mindrot

Apr 20, 2004, 2:33 AM

Post #1 of 9 (533 views)

http://bugzilla.mindrot.org/show_bug.cgi?id=844

Summary: the client copy is over written during scp
Product: Portable OpenSSH
Version: -current
Platform: Other
OS/Version: AIX
Status: NEW
Severity: trivial
Priority: P2
Component: scp
AssignedTo: openssh-bugs@mindrot.org
ReportedBy: nrbiswal@db.com

Hi,

I am facing a strange error. While trying to scp a file to remote host, if the
connection drops in the middle of a file transfer , the original file in my
local host is getting over written with incomplete file.

Does any body has face this problem before ? I tried to search in the bug
database. But no luck. Any help on this would be highly appreciated.

Thanks in advance.
-Nihar

------- You are receiving this mail because: -------
You are the assignee for the bug, or are watching the assignee.

[Bug 844] the client copy is over written during scp [ In reply to ]

bugzilla-daemon at mindrot

Apr 20, 2004, 5:21 AM

Post #2 of 9 (534 views)

http://bugzilla.mindrot.org/show_bug.cgi?id=844

------- Additional Comments From dtucker@zip.com.au 2004-04-20 23:21 -------
Do the source and destination files happen to be on the *same* NFS filesystem?
(eg /home ?)

------- You are receiving this mail because: -------
You are the assignee for the bug, or are watching the assignee.

[Bug 844] the client copy is over written during scp [ In reply to ]

bugzilla-daemon at mindrot

Apr 20, 2004, 5:26 PM

Post #3 of 9 (534 views)

http://bugzilla.mindrot.org/show_bug.cgi?id=844

------- Additional Comments From nrbiswal@db.com 2004-04-21 11:26 -------
Hi Darren,

thanks for your response. No, the destination file is in a remote system in a
separate directory. fyi, the source system is AIX 5.1 and destination system is
Linux. Pls let me know if you need further info.

thanks.
Nihar Biswal

------- You are receiving this mail because: -------
You are the assignee for the bug, or are watching the assignee.

[Bug 844] the client copy is over written during scp [ In reply to ]

bugzilla-daemon at mindrot

Apr 20, 2004, 7:08 PM

Post #4 of 9 (534 views)

http://bugzilla.mindrot.org/show_bug.cgi?id=844

dtucker@zip.com.au changed:

What |Removed |Added
----------------------------------------------------------------------------
Status|NEW |ASSIGNED

------- Additional Comments From dtucker@zip.com.au 2004-04-21 13:08 -------
Under normal circumstances the source file should not be modified. Please do
this and attatch the output (use "Create a New Attachment") to the this bug:

ls -l sourcefile
scp -vvv sourcefile desthost:destfile
ls -l sourcefile

------- You are receiving this mail because: -------
You are the assignee for the bug, or are watching the assignee.

[Bug 844] the client copy is over written during scp [ In reply to ]

bugzilla-daemon at mindrot

Apr 21, 2004, 2:06 AM

Post #5 of 9 (532 views)

http://bugzilla.mindrot.org/show_bug.cgi?id=844

------- Additional Comments From nrbiswal@db.com 2004-04-21 20:06 -------
Created an attachment (id=614)
--> (http://bugzilla.mindrot.org/attachment.cgi?id=614&action=view)
scp debug message when run in verbose mode

------- You are receiving this mail because: -------
You are the assignee for the bug, or are watching the assignee.

[Bug 844] the client copy is over written during scp [ In reply to ]

bugzilla-daemon at mindrot

Apr 21, 2004, 2:33 AM

Post #6 of 9 (534 views)

http://bugzilla.mindrot.org/show_bug.cgi?id=844

------- Additional Comments From dtucker@zip.com.au 2004-04-21 20:33 -------
(From update of attachment 614)
>-rwxr-x--- 1 scpuser scp 2675364 Apr 13 18:21 dbc01511.pip.test
[...]
>-rwxr-x--- 1 scpuser scp 2675364 Apr 13 18:21 dbc01511.pip.test

The files appear the same size, I take it you did not have a problem with it
dropping out? Can you repeat the process but simulate a dropout (possibly by
killing the "connect" command)?

------- You are receiving this mail because: -------
You are the assignee for the bug, or are watching the assignee.

[Bug 844] the client copy is over written during scp [ In reply to ]

bugzilla-daemon at mindrot

May 4, 2004, 8:04 PM

Post #7 of 9 (535 views)

http://bugzilla.mindrot.org/show_bug.cgi?id=844

nrbiswal@db.com changed:

What |Removed |Added
----------------------------------------------------------------------------
Status|ASSIGNED |RESOLVED
Resolution| |REMIND

------- Additional Comments From nrbiswal@db.com 2004-05-05 14:04 -------
Hi Darren,

Thanks for your help. I think I have found out the problem. The problem is in
our batch job scheduling. The scp program is trying to send the file in the
middle of the file generation. So the file is transfered in 2 cycles ( part by
part). May be scp is transfering only the incremental part of the file in the
second cycle and syncronizes the host file to whatever it has transfered in
second cycle (just a thought).

Do you agree on this ?

thanks again for your help.

-Nihar Biswal

------- You are receiving this mail because: -------
You are the assignee for the bug, or are watching the assignee.

[Bug 844] the client copy is over written during scp [ In reply to ]

bugzilla-daemon at mindrot

May 11, 2004, 6:43 PM

Post #8 of 9 (535 views)

http://bugzilla.mindrot.org/show_bug.cgi?id=844

dtucker@zip.com.au changed:

What |Removed |Added
----------------------------------------------------------------------------
Status|RESOLVED |REOPENED
Resolution|REMIND |

------- Additional Comments From dtucker@zip.com.au 2004-05-12 12:43 -------
scp doesn't do incremental transfers, if you want that use rsync.

------- You are receiving this mail because: -------
You are the assignee for the bug, or are watching the assignee.

[Bug 844] the client copy is over written during scp [ In reply to ]

bugzilla-daemon at mindrot

May 11, 2004, 6:43 PM

Post #9 of 9 (533 views)

http://bugzilla.mindrot.org/show_bug.cgi?id=844

dtucker@zip.com.au changed:

What |Removed |Added
----------------------------------------------------------------------------
Status|REOPENED |RESOLVED
Resolution| |INVALID

------- You are receiving this mail because: -------
You are the assignee for the bug, or are watching the assignee.