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I want my backup directors to be real servers, and I've succeeded, so there's
nothing I "need" at this point.
The problem with it routing when it's a backup is that it mungs up the
incomming connections to the realserver running locally when the Master DR
sends connections to it.
I solved my problem by using netfilter marking to direct packets to be load
balanced, and only marking packets when the unit is master, thereby working
around the issue.
My recomendation is that the backups not try to load balance until they're
switched to master by the userspace stuff.
This is an issue for me because all my units are "peers", and I want to the
master director to be able to be any one of them so I can do nifty stuff like
rolling firmware upgrades, with 0 downtime, etc. I'm sure my needs are rather
specialized, and even then I was able to get them met, just by jumping through
a few hoops, so great job!
David
-----Original Message-----
From: lvs-users-bounces@xxxxxxxxxxxxxxxxxxxxxx on behalf of Joseph Mack NA3T
Sent: Wed 10/24/2007 8:21 AM
To: LinuxVirtualServer.org users mailing list.
Subject: Re: [lvs-users] FW: Self Configuring High Availability LVS with
Keepalived
On Tue, 23 Oct 2007, David Hinkle wrote:
> Oh, just a quick suggestion. This hack would be
> completely unnecessary if you could simply configure a
> backup LVS server not to try and load balance.
do you know that in the current way of doing director
failover that the backup director is getting the ipvsadm
state table from the active director, so that it when the
backup becomes the active, that it knows the state of the
lvs controlled connections?
If you know that already, what's missing from LVS that you
need?
> I just want a backup to sit there and collect data, I
> don't want it to try and load balance anything until I
> promote it! :)
It doesn't loadbalance till you send it packets.
It seems that you and I have a different idea about what's
happening here and I don't know what you idea is. Can you
straighten me out?
Thanks
Joe
--
Joseph Mack NA3T EME(B,D), FM05lw North Carolina
jmack (at) wm7d (dot) net - azimuthal equidistant map
generator at http://www.wm7d.net/azproj.shtml
Homepage http://www.austintek.com/ It's GNU/Linux!
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