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So are trying to say that I should use keepalived instead of heartbeat?
-----Original Message-----
From: Alex Kramarov [mailto:alex@xxxxxxxxxxxxxxx]
Sent: Wednesday, November 27, 2002 10:29 AM
To: lvs-users@xxxxxxxxxxxxxxxxxxxxxx
Subject: Re: One Network LVS-NAT with HA
I would really suggest that people read the keepalived documentation about
using directors in active-active more - this would answer a lot of questions
of this kind .
In general, even in a active-passive setup one should have a floating vip on
the external network that the requests from clients are directed to it, and
a floating vip on the internal network, that this vip is the default gateway
to the real servers.
from this setup to active-active in only one step - have 2 VIPs on the
external side, and 2 on the internal, make sure that in normal situation one
pair of vip's (one external and one internal) is on one director, and the
other pair is on the second. direct clients to use the 2 vip's (for example,
set that the html of your site is retrieved through vip1, and the images
through vip2). if any of the directors fail, then all 4 ip's will be on the
same machine, thus achieving high availability, and active-active
configuration.
the documentation on keepalived's site provides very good description of
this process.
using only one network shouldn't contradict with this setup - just make the
logical adjustments.
Alex.
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