samba - Jun 2007 - Re : Samba/Winbind slow with Active Directory (Hoogstraten, Ton)

How many entries ?

TDB Database is limited 250 users.

-- 

Rodolphe

---------- Message transf?r? ----------
From: "Hoogstraten, Ton" <Ton.Hoogstraten@ingram.nl>
To: <samba@lists.samba.org>
Date: Sun, 3 Jun 2007 16:08:06 +0200
Subject: [Samba] Samba/Winbind slow with Active Directory
Hi all,

I'm looking for answers regarding a problem I'm having with Samba. Since
a year our Samba fileserver is part of out worldwide corporate Active
Directory. Before that Samba was part of our local NT4 domain. Since the
change to Active Directory the Samba server became slower and sometimes
does not respond at all to share requests.

If you using Ldap, no limited for entries. (5000 tested)

But, have you enable log on openldap ?

It is may be the problem...

Could you monitored CPU, SWAP, Interfaces on the server ?



-- 


Rodolphe

On Mon, Jun 04, 2007 at 02:11:48PM +0200, Rodolphe A.
wrote:
> How many entries ?
> 
> TDB Database is limited 250 users.
Huh? What do you mean here??

Volker
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On Mon, Jun 04, 2007 at 02:18:26PM +0200, Rodolphe A.
wrote:
> TDB Database is the default database for written entries Winbind ( and
smb).
> 
> If you use Ldap, there is not limited. ( 5000 tested)
Neither is limited to 250 entries. Where do you have that
data from?

Volker
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On Mon, 2007-06-04 at 14:11 +0200, Rodolphe A. wrote:
> How many entries ?
> 
> TDB Database is limited 250 users.
No it is not limited to 250 users.
The documentation states that usually for under 250 users installations
TDB may be easier and give good results without going the LDAP way.

250 is just an arbitrary line draw in the sand to help in decision
making, no hard limit in the code.

Simo.

-- 
Simo Sorce
Samba Team GPL Compliance Officer
email: idra@samba.org
http://samba.org

On Monday 04 June 2007 08:00, simo wrote:
> On Mon, 2007-06-04 at 14:11 +0200, Rodolphe A. wrote:
> > How many entries ?
> >
> > TDB Database is limited 250 users.
>
> No it is not limited to 250 users.
> The documentation states that usually for under 250 users installations
> TDB may be easier and give good results without going the LDAP way.
>
> 250 is just an arbitrary line draw in the sand to help in decision
> making, no hard limit in the code.
For the record: TDB works nicely at a site that had over 4000 entries in 2004. 
At that time less than 66% of users had been added. I did not hear of any 
complaints after initial installation was completed, so it is most probably 
still being used today.

The 250 user level was documented as a point at which most Windows networks 
end up being split across multiple segments. When this happens it is 
advisable to have at least one BDC on major network segments.  TDB is not an 
ideal solution for PDC/BDC configurations - for such installation the use of 
LDAP should be seriously considered.

- John T.
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