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The main reason why i always choose for heartbeat/ldirectord is mostly the
support. I have had a few issues with ldirectord and the quick responses i
get from this mailinglist and Horms in particular provide a much safer
'feeling' than i get from keepalived. Plus, i find that the ldirectord
configuration is better organized and maintained. This in combination with
the 'callback' function of ldirectord, allowing you to automatically copy
the changed ldirectord.cf file to the failover node without having to worry
about it, makes it a very robust solution.
regards,
Sebastian.
On Fri, Dec 12, 2008 at 1:06 PM, Serge Fonville <serge.fonville@xxxxxxxxx>wrote:
> Thanks for the responses.
>
> > There is an alternative, which Malcolm mentioned, called keepalived
> >
> (http://www.keepalived.org/). This uses the VRRP protocol to provide IP
> >
> failover, manages the LVS for you and provides health checking of your
> >
> "real" servers, all in one package.
> >
>
> > Configured correctly, even with a streamlined setup with only two
> >
> servers, it is possible using either of these methods to remove the SPOF
> >
> associated with a load balancing device.
> >
>
> It seems that keepalived is more powerful but ldirectord+lvs+heartbeat is
> more active, so I am not entirely sure which is 'best' suitable.
> Keepalived can be configured in an active/active fashion (which still
> baffles me a bit) and the 'need' for an equal division of traffic is
> probably more of an ideal than an actual need. To reduce chances for split
> brain, I have(had) chosen an RS-232 cable and could not determine whether
> keepalived supports that, I read the manual, but it's quite old. After this
> part is answered I can probably start looking into the specifics of setting
> up everything
>
> Thanks a lot everyone!!
>
> Serge Fonville
> _______________________________________________
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