[Samba] Samba-3.0.1pre1 and LDAP

[mamue at lb-bbs1.emd.ni.schule.de]

Hi,

from my experience, there are few possible reaseons, but none relates to
samba.
1.: Check (loglevel 256 in slapd.conf) the search filters. Try to manually
"ldapsearch" those to make really sure you have all necessary attributes
indexed. If you think you have indexed them, but search is slow, try
rebuilding the indices (slapindex). Don't make the same mistake i did and
use the correct version of slapindex if you compiled your own.
2.: The use of "valid users = @foo, @bah ..." in smb.conf is nearly always
not clever.
3.: you might want to try nscd to cache groups and user.
4.: Old OpenLDAP versions are IMHO slow (2.0.x), try 2.1

Have fun,
Malte Mueller
> Hiya,
>
> I have recently upgrade samba to 3.0.1pre1 from alpha3-19. The upgrade
> went well with no real problems, except .....
>
> I have noticed today that the load on the LDAP server is extremely high.
> CPU usage on slapd is anywhere between 10%-80%. At one point to day
> everything came to a grinding halt. The only difference between I can
> think of is the samba upgrade. This is with an average load of about 300
> users.
>
> Can anyone think why samba is causing slapd to max out??
>
> Cheers
>
> -------------
> Kristyan Osborne - IT Technician / Community Manager
> Longhill High School
> 01273 391672 / 304086