mike at vpi
Apr 12, 2002, 9:03 AM
Post #3 of 5
(702 views)
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Jeremy,
Thanks for the info, If there is anyone out there that can help with
providing a solution for 2 server configuration with backhand please let
me know.
Thanks
Mike
-----Original Message-----
From: backhand-users-admin [at] lists
[mailto:backhand-users-admin [at] lists] On Behalf Of Jeremy
Rusnak
Sent: Thursday, April 11, 2002 11:50 PM
To: backhand-users [at] lists
Subject: RE: [m_b_users] New to backhand
Mike,
Welcome! I'll save the configuration questions for someone else since
I'm fairly new to backhand and don't want to steer you wrong.
The only trouble you may run into with backhand with only two servers is
that it seems designed to handle larger pools. Using some of the
standard candidacy funtions (such as byBusyChildren or byLoad) on only
two machines can cause some problems if you don't tweak things
correctly.
Since you only have two choices, the problem I had was that
all requests were either going to one machine or the other
at any given time. I'd see one machine with 50 busy clients and the
other with 10, then it would flip flop.
Backhand really starts to work well once you get beyond two servers, so
you can eliminate some of them from the pool using byLogWindow. You can
also tweak the settings a bit to keep requests on the local machine more
often than forwarding them.
If anyone else has any good suggestions on the above scenario, I'd love
to hear them as well. Maybe there is a much smoother way to implement
across only two servers, but I really have not found it yet.
If you know for sure that you will always only need to balance your
entire server, you might look at something like LVS
(www.linuxvirtualserver.org). You can get higher throughput using a
method like LVS, but you don't have the fine control that you do with
backhand.
Personally, I prefer backhand since it's easier to administer and I can
really fine tune what I want balanced and how. Plus you don't have to
deal with kernel patches or modules.
Jeremy
-----Original Message-----
From: backhand-users-admin [at] lists
[mailto:backhand-users-admin [at] lists]On Behalf Of Mike
Jimenez
Sent: Thursday, April 11, 2002 4:41 PM
To: backhand-users [at] lists
Subject: [m_b_users] New to backhand
Hi,
I am looking for a load balancing solution, However I am looking to
balance the load for the entire website rather then just a directory
ex: cgi-bin Is mod backhand the solution? I already loaded the mod on
one server but only want to run it on 2 servers rather then 10 or more.
My other question is how would I configure it for just 2 servers using
the following example. Assuming that my broadcast IP is 10.0.0.10 and my
other server is 10.0.0.11 Mike
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