Resources are fine, and if we really need a 16 way machine this early in the game, then we
should just forgoe all of this and stick it in our regular db that sits on a 16way with
32g of mem and a fiber channel san attached to it.
iostat is fine, 2% usage
CPU is at 0, RAM is not even being used, so of course there is no swap going on.
I think we need to do some of this indexing on particular attributes, then address the
possible query issue that we think is happening.
----- Original Message -----
From: "Steven Jones" <Steven.Jones(a)vuw.ac.nz>
To: "General discussion list for the Fedora Directory server project."
<fedora-directory-users(a)redhat.com>
Sent: Thursday, December 13, 2007 12:04:36 PM (GMT-0800) America/Los_Angeles
Subject: RE: [Fedora-directory-users] LDAP Accounts for large website
Hi,
For applications there are lots of ways to improve performance….with no information
supplied there is no where to start…
Ie, look at your disk i/o…use iostat are the disks LDAP sits on at 100% utilisation? Even
80% is not good….if so make bigger raid sets and/or distribute the database over differing
raid controllers and disk sets….get the utilisation down to 30%....
Is you memory full and you are into swapping? Make sure the issue is not disk i/o
bottlenecks….if not add more ram…..make sure your swap is not exhausted….add more swap
until you can get more ram…
Are your switches or routers too slow? Check their utilisation…..
CPU maxed out? Where is it going? On wait? Check disk i/o….consider dual Quad core
machines…..or even 4 way quad core machines….Dell R900s are seriously grunty boxes, have
16 cores and hold 64gig of ram cheaply, then attach them to a SAN….
regards
Steven Jones
Senior Linux/Unix/San/Vmware System Administrator
APG -Technology Integration Team
Victoria University of Wellington
Phone: +64 4 463 6272
From: fedora-directory-users-bounces(a)redhat.com
[mailto:fedora-directory-users-bounces@redhat.com] On Behalf Of Jared B. Griffith
Sent: Friday, 14 December 2007 8:37 a.m.
To: fedora-directory-users
Subject: [Fedora-directory-users] LDAP Accounts for large website
I was wondering if anyone here has ever used LDAP for a website, that will potentially
have millions of LDAP accounts.
If so, are you experiencing slow query responses or other issues?
If you were experiencing slow query responses, and were able to rectify the issue, how did
you do this?
We are currently using FDS for our main website for customer accounts. We currently have
over 52,000 accounts in LDAP and have only been using this for 3 months. We are now
experiencing extreme slow down in query response when getting customer data into and out
of the LDAP servers.
Any help would be greatly appreciated.
--
- Thank you,
- Jared B. Griffith
- Farheap Solutions, Inc.
- Lead Systems Administrator
- California IT Department
- Email - jared.griffith(a)farheap.com
- Phone - 949.417.1500 ext. 266
- Cell Phone - 949.910.6542
--
- Thank you,
- Jared B. Griffith
- Farheap Solutions, Inc.
- Lead Systems Administrator
- California IT Department
- Email - jared.griffith(a)farheap.com
- Phone - 949.417.1500 ext. 266
- Cell Phone - 949.910.6542