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Re: [lvs-users] ultramonkey: High Capacity High Availability and Load Ba

To: "LinuxVirtualServer.org users mailing list." <lvs-users@xxxxxxxxxxxxxxxxxxxxxx>
Subject: Re: [lvs-users] ultramonkey: High Capacity High Availability and Load Balancing
From: "Sameer Garg" <sameer.garg@xxxxxxxxx>
Date: Wed, 29 Aug 2007 13:16:51 +0530
You can do the setup with only one director. Usually ldirector and
heartbeat are used together. In a single director setup just use
ldirector. It does the health checking and adds and removes machines
from the pool accordingly. Though you would need to specify the alias
manually because ldirector does not manage your VIP.

Sameer

On 8/28/07, José Miguel Parrella Romero <joseparrella@xxxxxxxxx> wrote:
> j j escribió:
> > Is it possible to get going as of now, with 1 linux director, 2 real
> > servers for High Capacity High Availability and Load Balancing, 2nd
> > imaginary linux director is already dead.
>
> Yes, but then it wouldn't be highly available. Your single point of
> failure is in your one and only director, and if it fails, you end up
> getting almost nothing. If you still want to go out like this (which
> isn't that bad, I think, at least if your other director is expected to
> arrive soon) I can propose you:
>
> a) Do you have access to any Linux machine without CPU intensive
> applications running? You can easily setup the backup director there,
> and it wouldn't be used until it's really needed.
>
> b) One of your two real servers can be your backup director. This is
> harder to setup, and all machines should be in the same subnet, but hey,
> it's a dirty workaround. A version of this ugly solution is to have
> 'backup load balancing' with DNS round robin.
>
> HTH,
> Jose
>
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