[Samba] tdbsam.

Linux Addict linuxaddict7 at gmail.com
Tue Jul 28 08:18:43 MDT 2009

On Sat, Jul 25, 2009 at 12:10 PM, Volker Lendecke <Volker.Lendecke at sernet.de
> wrote:

> On Sat, Jul 25, 2009 at 09:49:55AM -0400, Charles Marcus wrote:
> > On 7/24/2009, John H Terpstra - Samba Team (jht at samba.org) wrote:
> > >> As an FYI, I am using Samba-3.2.4, idmap_rid with tdbsam as backend
> for
> > >> about 3 years with 2000 users on member server configuration
> authenticating
> > >> AD 2003. Occasionally I had db corrupt issues, but restarting winbind
> > >> resolved most of the times.
> >
> > > No argument with that statement - agreed.
> >
> > Is it common to have occasional db corruption? And is simply restarting
> > winbind the proper way to fix it? What if it doesn't?
> What kind of db corruption do you have? This is certainly
> not common, and restarting winbind is a very unusual way to
> fix that.
> Volker
> Version: GnuPG v1.4.9 (GNU/Linux)
> iEYEARECAAYFAkprLnUACgkQbsgDfmnSbrZYXQCgh8uuAA5O4T3BzTwyxgD9dQlg
> Tt4AniqNeA0StVxwaloxyVv/CCt4584Z
> =mv0E
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I dont know about other distros, but it certainly happens on Redhat
Enterprise and their KB says its a known problem.

So I far I am able to live up with occasional winbind restarts, but
eventually I wanted to move to ldap backend. When I implemenetd samba years
back(3.0.x), ldap backend would not support id mapping for trusted domains.


"TDB file corruption is a known problem with Samba, which is difficult or
impossible to prevent from occuring. "

"When winbind's TDB files become corrupted, it is often necessary to stop
the winbind service, delete winbind-specific TDB files in /var/cache/samba,
and start the winbind service back up to re-generate a new idmap."

Let me know what you think.


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