[Samba] Re: [Fwd: File Locking and Permissions Issue]
jra at samba.org
Fri May 16 17:24:23 GMT 2008
On Fri, May 16, 2008 at 05:07:50PM +0000, Jason Arends wrote:
> Thanks for the responses so far... I am actually the tech from Lacerte who was
> working with Jack - I'd like to clarify some things to try to help find a
I appreciate the help and time you've been willing to put into this.
> - The software is designed for multiple users to access the database on a
> network and works that way for thousands of customers (using Windows servers,
> Linux is actually not supported by us and we don't test on it)
> - In Jack's case, each computer can access the program fine when the database is
> local, and when the database is on the server it works fine as long as only one
> computer accesses it
> - I have seen cases where performance degradation in our software occurs when
> oplocks are disabled on Windows networks. Oplocks was not disabled on Jack's
> machines, but we did try disabling it on both the server and workstations to see
> if it made a difference and it did not help.
> - I now realize that when a second user accesses a file, the server will break
> the oplock the first user had on it, which is why it showed up that way in the
> - I tested our software on my home network with Samba on a Linux server and 2
> workstations (XP and Vista) and didn't run into the same problem as Jack - I was
> able to open the software on both workstations and access the same database
> without the performance issue. My smbstatus logs also appeared identical to
> Jack's as far as the oplocks go. The smb.conf file that Jack attached was the
> one from my server that I had sent him to compare with his, so consider that as
> the working one. One difference is that I was authenticating as the same user
> from 2 different workstations while Jack had different users.
> I'd like to have Jack set up a share on one of the Windows workstations and
> point 2 computers at that database and see if the same issue occurs, just to
> make sure we are looking in the right direction.
That seems like a good plan. Please let the list know if you get stuck
and need further help.
> (For the record, the issue already was escalated and I am not first-level
> support. Unfortunately if it went higher the case would probably be dismissed
> as "OS not supported")
How can we change that ? There are many organizations (Linux distro's,
OEM's, major vendors like IBM, HP, Sun etc.) who ship Samba as a
supported product. Is there something we can do to help change the
policy in your company ?
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