Re: Failover(?) using VS-NAT?

To: Dayton Turner <turnerd@xxxxxxxxxx>, lvs-users@xxxxxxxxxxxxxxxxxxxxxx
Subject: Re: Failover(?) using VS-NAT?
From: Wayne <wayne@xxxxxxxxxxxxxxx>
Date: Mon, 14 Aug 2000 14:18:59 -0700
A connection is between the client and VIP on the LVS box.
Even any commercial load balancer if using VIP will do the
same -- the connection would be dead.  It is up to the client
to click on the "reload" button to get new connection going.

At 12:55 PM 8/14/00 -0700, Dayton Turner wrote:
>Hi There, I've just set up a 2machine load balanced webserver using
>VS-NAT, everything works great, I only have one concern. I decided to
>see what would happen if i unplugged the lan cable from machine 2, and
>sent a request to the director. Sure enough, it just sat there waiting
>for a connection. Just like I hoped. Now, I'll remove the ipvsadm entry
>for that machine, hoping the request will fall over onto machine 1. Such
>things do not happen. I figured this was important in the real world if
>a machine went down before the monitoring program found out, and someone
>had requested a page before the machine was pulled from the pool. Anyone
>know a way to make dead existing connections fall over to a working
>                             `~ ~'
>                              O.O
>Dayton Turner                   UNIX Systems and Network Administrator
>E-Mail: turnerd@xxxxxxxxxx      Cell: (604) 809-7742
>WWW:     Richmond, BC, Canada

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