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Ultramonkey is a pre-packaged complete implementation of LVS, heartbeat
and ldirectord. Which gives you (in order) load balancing, director
failover and real server monitoring.
Piranha is RedHats offerering of the same.
Keepalived is, I think, equivalent to ldirectord but I'm not sure as I
don't use it.
Hope this helps.
On Thu, 2005-11-10 at 18:21, Dan Trainor wrote:
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> Hello, all -
>
> Once again I call upon the help of you fine people in helping me better
> understand exactly what I'm looking at here. Before we get started, I'd
> first like to thank you all who have helped me in the past. You're an
> incredible help.
>
> I've been reading an excellent article by Mr. Zhang on linux-mag.com,
> http://www.linux-mag.com/2003-11/clusters_01.html. If you have not yet
> read it, I highly suggest that you do. It is very informative.
>
> While reading this article, UltraMonkey, Piranha, and Keepalived were
> briefly mentioned. Although there was a little intro given about all
> three, their purpose seemed a bit fuzzy to me.
>
> It seems to me that all three of these services provide the same type of
> service - they all determine which node is up/working/doing stuff, and
> deals with this circumstance as it sees appropriate. What I don't quite
> understand is the subtle differences between the three, or if I'm just
> completely wrong here. All three describe themselves as dealing with
> high availability and load balancing, but I can't really find a
> comparrison between the three.
>
> If anyone might be able to point me in the right direction, or just give
> me some links as to where I can read about the differences between the
> three, I would greatly appreciate it.
>
> Thanks
> - -dant
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