[Samba] SAMBA 3.0.14a getpwent() usage with LDAP backend -- URGENT HELP!!!

[Daniel Wilson]

Hi,

We're being hit by occasional very high load (up to 23 on a SUN Fire 
v440) on our LDAP server
coming from a query of (objectClass=posixAccount).  This currently
returns over 54,000 entries ...

This is coming from the getpwent() call in util_getent.c:getpwent_list()

This is coming from srv_samr_nt.c:get_memberuids()

But we're having trouble working out what triggers this call:  it
happens mostly during the morning startup period, but happens
occasionally thoughout the day.  It is not triggered by anything we
can think of with our clients MS/Win/XP, smbclient, Mac OS/X.  But
might be coming from clients we can't replicate: NT4, W2K, ???

Is there any alternative to getting the list of all users in
get_memberuids() ?

This causes a 2 hr slot in the morning when users have trouble loggin 
in, which is effecting about 6000 users!
-- 
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
Daniel Wilson
Systems Administrator

IT & Communications Service - SLS
University of Sunderland
Unit 1a Technology Park
Chester Road
Sunderland
SR2 7PT

Tel: 0191 515 2695

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