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RE: user counts keepalived vs ldirectord?

To: "LinuxVirtualServer.org users mailing list." <lvs-users@xxxxxxxxxxxxxxxxxxxxxx>
Subject: RE: user counts keepalived vs ldirectord?
From: "Peter Mueller" <pmueller@xxxxxxxxxxxx>
Date: Fri, 28 May 2004 14:03:28 -0700
> So the question:  which method seems to have the biggest 
> install base? keepalived or ldirectord?

Ldirectord has been around much longer.  It probably has a larger base
than Keepalived.  I use both.  They are both active projects with pretty
good documentation and nice lead developers :).

Keepalived is better for some situations; quicker failovers, email
capability built-in, sync groups (e.g. if eth2 fails, fail eth0).
Keepalived is written in C.

Ldirectord uses heartbeat, which has more failover granulity and
control.  For example, heartbeat usually talks on multiple mediums.  On
my servers I use serial and ethernet heartbeats for increased
communication.  Also, ldirectord has easy checks built-in for different
services.  For example, it is easier to check SSL than with Keepalived,
where you have to do extra steps.  Ldirectord is perl.

There are also other LVS-front-end options that are in the HOWTO.

Hope that helps,

P

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