[Samba] winbind authentication performance: lookup_groupmem in large sites

[Guenther Deschner]

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SERGEYS Filip wrote:
 > 3) Per group list all members of that group -> BOTTLENECK
> [2007/06/25 17:18:02, 10] nsswitch/winbindd_cache.c:lookup_groupmem(1665)
>   lookup_groupmem: [Cached] - doing backend query for info for domain XXXX
> [2007/06/25 17:18:02, 10] nsswitch/winbindd_ads.c:lookup_groupmem(879)
>   ads: lookup_groupmem POST sid=S-1-5-21-xxxxxxxxxx-xxxxxxxxx-xxxxxxxxx-xxxx

In older samba releases we needed to lookup each member in AD which in
the upcoming 3.0.26 release will be done much more efficient. You can
try the SAMBA_3_0_26 branch to check whether this fixes your performance
problem.

Thanks,
Guenther

- --
Günther Deschner                    GPG-ID: 8EE11688
Red Hat                         gdeschner at redhat.com
Samba Team                              gd at samba.org
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