02-2006 lb-l: RE: [load balancing] HTTP sessions persistence wit

From: Seth Kusiak <SKusiak [izzat] asicentral.com>
Date: Fri Feb 24 2006 - 13:50:19 EST

Hello,

I would tune the netmask of your simple persistence statement. For
example, if all of your clients are in the 192.168.1.0/24 block and
persistence is set to 255.255.255.0 then all requests are going to be
directed to one proxy. If you set the netmask to 255.255.255.255, then
every IP will be balanced based on the method that you have chosen (i.e.
round robin) - you have to decide based on your network what netmask
setting makes sense for you.

Hope this helps,

Seth

-----Original Message-----
From: owner-lb-l@vegan.net [mailto:owner-lb-l@vegan.net] On Behalf Of
Oleksandr Darchuk
Sent: Friday, February 24, 2006 12:59 PM
To: lb-l@vegan.net
Subject: [load balancing] HTTP sessions persistence without simple
persistance

Hello, All.
Sorry for possible dump question, I'm newbie in LB solutions and need
gurus help.
So, there are 1 BIG-IP LB and 5 proxy servers behind them.
BIG-IP is configured with Round-Robin and simple persistence:
-----------------------------------
lb_method roundrobin
persist simple
simple_timeout 300
ssl_timeout 60
------------------------------
In proxy transactions log I see that most of transactions from each IP
address goes through one of proxy (without balancing) As I understand,
it is because of persistence.
I decide to solve this problem. The first idea was to set persistence
timeout to 0s (to avoid persistence). But the another issue is HTTP/SSL
sessions -- I want to keep persistence for them. At least I want to be
sure that HTTP/SSL sessions are persistent and there will be no sessions
renegotiating when I remove persistence.
So, can anyone give me advice am I right in my decision, can I avoid
"requests spikes" when remove simple persistence, but allow HTTP/SSL
sessions persistence? What is "right" and common decision about
persistence?

Many thanks for any advice.

____________________
The Load Balancing Mailing List
Unsubscribe: mailto:majordomo@vegan.net?body=unsubscribe%20lb-l
Archive: http://vegan.net/lb/archive
LBDigest: http://lbdigest.com
MRTG with SLB: http://vegan.net/MRTG
Hosted by: http://www.tokkisystems.com


Advertising Specialty Institute | asi/33020
4800 Street Road | Trevose, PA 19053-6698 | www.asicentral.com

ASI is the largest marketing and media organization serving the promotional
products industry, with 21,000 members. Recognized as 'Best Place to Work' by
The Philadelphia Business Journal.

<><><><><><><><><><><><><><><><><><><><><><><><><><><><><><><><><><><>

The ASI Shows -- The Place to Find New and Innovative Ideas and Products!

LAS VEGAS, MAR. 22-24 (EXHIBITS MAR. 23-24) -- VENETIAN/SANDS EXPO CENTER
Continue your selling momentum at the best-attended ASI Show and attend a
free Keynote presentation by Steve Wynn! Plus, see a private ASI performance
by Blue Man Group.

PHILADELPHIA, MAY 23-25 (EXHIBITS May 24-25) -- PENNSYLVANIA CONVENTION CENTER
Attend the newest show to hit the Northeast and attend a free Keynote breakfast
with Rudy Giuliani!

CHICAGO, JULY 11-13 (EXHIBITS JULY 12-13) -- MCCORMICK PLACE
Prepare for the second selling season at the industry's largest summer show!

PLUS...ASI's all-new traveling show -- the Advantages Roadshow - touring
over 50 top cities!

For show updates, visit www.asishow.com or call 800-546-3300.

<><><><><><><><><><><><><><><><><><><><><><><><><><><><><><><><><><><>

This archive was generated by hypermail 2.1.8 : Fri Feb 24 2006 - 16:06:11 EST

RE: [load balancing] HTTP sessions persistence without simple persistance