[K12OSN] OT: still have sluggish system

David Trask dtrask at vcsvikings.org
Tue Sep 12 14:37:52 UTC 2006


How many users do you have?  If you have less than 1500 or so....don't
bother with nscd...turn it off.

"Support list for open source software in schools." <k12osn at redhat.com>
writes:
>Update on system sluggishness.  Over the last few days, more
>troubleshooting seems to indicate that the issue is somehow tied into
>authentication.  nscd is (still) constantly dying on the authentication
>server.  Also, there are literally over a thousand ldap entries showing
>up in the output from netstat on the sluggish system.  Many are in a
>CLOSE_WAIT state.  On a reboot, there are just a couple but after 20-30
>logins, it starts going up quickly.
>
>At this point, I am going to run Matt's ldap script on the 'new' FC5
>K12LTSP server and just move authentication over to it.  Hopefully this
>will be straightforward.  I have some concerns with authentication on my
>Windows systems (issues with latest version of samba), but ... what the
>heck,  who needs sleep. ;)
>
>Thanks for the advice, it has helped to point out some possible issues.


David N. Trask
Technology Teacher/Director
Vassalboro Community School
dtrask at vcsvikings.org
(207)923-3100





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