Dear folks,

after some days of tracking the problem down, I found that disabling sgi_fam on
our students' RH 7.3 installations terminated a massive set of LDAP queries that
were effectively terminating services from our LDAP/nfs/name/dhcp server by
bringing load average up to 7 and beyond.

We are using LDAP authentication for all our laboratory machines, using
OpenLDAP 2.0.23 on RH 7.3.  There are about 8000 user accounts, and the system
has worked for a couple of years.  It all works fine until we get requests like
this at the rate of up to 345/second:

base="uid=020526238,ou=People,dc=tyict,dc=vtc,dc=edu,dc=hk" scope=0
filter="(objectClass=*)
(many other user ids in the base for other queries)

I have turned the sgi_fam service off on the removable hard disks for that
class, but there are many more classes, full and part time.  I have searched
bugzilla and the redhat list, but there seems to be no one else reporting this.
I would be most grateful for any suggestions or ideas on how to resolve this,
particularly on our server (rather than modify hundreds of clients).

--
Nick Urbanik   RHCE                                  [EMAIL PROTECTED]
Dept. of Information & Communications Technology
Hong Kong Institute of Vocational Education (Tsing Yi)
Tel:   (852) 2436 8576, (852) 2436 8713          Fax: (852) 2436 8526
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