RE: Beowulf vs Linux-HA
> -----Original Message-----
> From: Grok Mogger [mailto:email@example.com]
> Sent: Monday, December 04, 2006 11:03 AM
> To: List Debian Beowulf
> Subject: Beowulf vs Linux-HA
> Hey everyone,
> I have never setup or even seen a Beowulf cluster in action.
> But just understanding the concept, it seems like a great way
> to have a highly available and load balancing cluster. If
> high availability is the goal, what's better? A Beowulf
> cluster or something like Linux-HA?
Beowulf-type systems are not intended fo HA, only load balancing. Neither
one is necessarily better, since they have different use cases.
> Let's say I wanted to have a highly available apache server,
> and I didn't even really care about load balancing. That
> would just be icing. What would be better? Something like
> the Linux-HA project's Heartbeat software, or a Beowulf cluster?
HA might be a periphery benefit, but if that is your primary concern, you're
probably better off with using Linux-HA's tools.
In particular, beowulf generally utilizes a single 'head node,' which
controls the sub nodes. This head node represents a single point of failure.
- Patrick Bogen