[Samba] File locking problem involving Samba, Clearcase, and
Cygwin
Jeremy Allison
jra at samba.org
Wed Feb 11 02:56:26 GMT 2009
On Tue, Feb 10, 2009 at 02:24:10PM -0800, Kathy wrote:
> I wanted to post again with the results of using Samba 3.2.8. Looks
> like this did not solve our "locking" problem. We are still getting
> permission denied errors when we try to do a "mv" of a log file inside
> a Clearcase view via a Samba share to a different location. Again,
> this is inside a Cygwin window on a WindowsXP virtual machine. It is
> referencing a Clearcase dynamic view via Samba on
> //server/<view_name>. It does not matter if you try to move it to
> another Clearcase view (i.e. //server/views/<ccase_view_name/<dir>) or
> if you try to move it to a Windows share or even to the local drive.
> Below is a snippet of what the Samba log shows when these two files
> can't be moved. ProcessExplorer program on the Windows XP machine did
> not show file handle holding on to either of these files. Smbstatus
> on the RHEL 5.2 Clearcase/Samba server reported NONE for oplocks,
> WRONLY for R/W, and DENY_NONE on DenyMode.
>
> We are now running new tests where the scripts are writing the logs to
> a Samba share, but not to a share that is also a Clearcase view. And
> if we still have issues we are going to then have the logs write to a
> local drive, leaving Samba completely out of it for the part of
> writing logs. (They will still be inside the CC view via Samba when
> firing off their scripts.)
Ok, thanks for testing with the latest code. As Volker
mentioned, what we need now if for you to test this
against a Windows 2003 or 2008 server and see if this
reproduces the problem. If not, a wireshark network
trace of it working correctly against Windows 200[3|8]
and it not working correctly against Samba 3.2.8 is
needed.
Thanks a lot,
Jeremy.
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