Question about round robin

[Scott Ullrich]

On Fri, Nov 6, 2009 at 11:01 AM, Kevin <k at kevinkevin.com> wrote:
> I've searched the freebsd-* mailing list as well as gone through the handbook regarding load balancing w/ PF (http://www.openbsd.org/faq/pf/pools.html) and found no mention of any kind of inherent availability checks or anything along those lines. Have I missed something?
>
> Seems that all the options (bitmask, random, source-hash, round-robin) provide for different ways to distribute traffic to the servers, but if a server dies or becomes unresponsive it would compromise the pool in itself. Most other load balancing solutions such as LVS can be incorporated with keepalived to allow for status checking.
>
> I would love to know anyone who may have implemented a solution like that with PF + round robin.

Take a look at relayd and slbd.

Scott