[Samba] File Disappearance after copy from OS X

[Ed Holden]

Hi,

I wrote in last week about a problem with Mac OS X systems copying files 
to a Samba server.  The files sometimes disappear, though the problem is 
intermittent.  I suspect that this is an issue with Mac OS X dropping 
the file prematurely, and indeed a Google search reveals that OS X users 
have seen similar problems, but only with Samba shares.

Has anyone else run into this?  If so, were you able to correct it?  I 
did a level 10 debug on the Samba (2.x, Linux) server and was able to 
find what I think are the last few that deal with the upload of a file 
called gnu-linux.pdf, which I copied to the folder "\NRL Databases" and 
which immediately disappeared.  That bit is included below, but there 
are a LOT of lines containing opening and closing that file during its 
copy.  Does anyone know what I should be looking for in this log, or how 
to correct the problem?

Thanks in advance,
Ed

eholden at mclean.harvard.edu wrote:

> I think that the Mac might do some unusual things when it tries to
 > write the file, including creating a .DS_Store file, as well as a
 > temporary version of the target file beginning with the ._ string.
 > There are a lot of instances of filename mangling, opening the file,
> closing the file and so forth, spanning many lines, so I didn't
 > include it all.  But this is, I think, the very end.
> 
> [2003/11/12 11:11:44, 2] smbd/open.c:open_file(245)
>   NRLADMIN opened file NRL Databases/gnu-linux.pdf read=Yes write=No
> (numopen=1)
> [2003/11/12 11:11:44, 10] smbd/open.c:open_file_shared1(1042)
>   open_file_shared : share_mode = 10
> [2003/11/12 11:11:44, 10] locking/locking.c:set_share_mode(692)
>   set_share_mode: creating entry for file NRL Databases/gnu-linux.pdf.
> num_share_modes = 1
> [2003/11/12 11:11:44, 10] locking/locking.c:print_share_mode_table(445)
>   print_share_mode_table: share_mode_entry[0]: pid = 1838, share_mode =
> 0x10, desired_access = 0x10000, port = 0x0, type= 0x0, file_id = 27, dev
> = 0x801, inode = 65538
> [2003/11/12 11:11:44, 10] locking/locking.c:del_share_entry(604)
>   del_share_entry: num_share_modes = 1
> [2003/11/12 11:11:44, 10] locking/locking.c:del_share_entry(609)
>   del_share_entry: deleted share_mode_entry[0]: pid = 1838, share_mode =
> 0x10, desired_access = 0x10000, port = 0x0, type= 0x0, file_id = 27, dev
> = 0x801, inode = 65538
> [2003/11/12 11:11:44, 10] locking/locking.c:del_share_entry(617)
>   del_share_entry: deleting entry 0
> [2003/11/12 11:11:44, 10] locking/locking.c:del_share_entry(639)
>   del_share_entry: Remaining table.
> [2003/11/12 11:11:44, 10] smbd/close.c:close_normal_file(153)
>   close_normal_file: share_entry_count = 0 for file NRL
> Databases/gnu-linux.pdf
> [2003/11/12 11:11:44, 10] locking/posix.c:posix_locking_close_file(1245)
>   posix_locking_close_file: file NRL Databases/gnu-linux.pdf has no
> outstanding locks.
> [2003/11/12 11:11:44, 2] smbd/close.c:close_normal_file(213)
>   nrladmin closed file NRL Databases/gnu-linux.pdf (numopen=0)
> 
>>
>>eholden at mclean.harvard.edu wrote:
 >>|
>>| Hi.  I'm converting a group that was using Mac OS
>>| X Server (we were dissatisfied) to Mandrake PPC
>>| Linux with Samba.  The Mandrake-supplied package is
>>| version 2.2.7a-8mdk.  So far it works great - but
>>| we have a serious and odd problem that I couldn't
>>| find in previous postings to this list.
>>|
>>| When I copy files from an OS X server to this
>>| Mandrake/Samba server they usually disappear.  Which is
>>| bad, from a service point of view.  I can often copy a
>>| single file to the share and it works fine, but subsequent
>>| files vanish.
>>
>>I would suggest getting a network trace and looking
>>for any SMBunlink commands showung up.  You could get
>>a samba level 10 debug log and do the same thing.  My
>>guess is that the mac server is deleting the file
>>and Samba is just doing what it was told to do.
>>
>>
>>
>>
>>
>>cheers, jerry
>>- --
>>~ ----------------------------------------------------------------------
>>~ Hewlett-Packard            ------------------------- http://www.hp.com
>>~ SAMBA Team                 ---------------------- http://www.samba.org
>>~ GnuPG Key                  ---- http://www.plainjoe.org/gpg_public.asc
>>~ "If we're adding to the noise, turn off this song" --Switchfoot (2003)




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