[Linux-HA] Should We Upgrade from 2.0.4?

[Andrew Beekhof]

On 12/30/06, Robinson, Eric <eric.robinson at pmcipa.com> wrote:
> We're using heartbeat 2.0.4 in a production environment and everything
> has been working fine for months. We've tested failover many times and
> it always works well, to the point that we are now willing to force
> failover in the middle of the day without fear of disrupting users. We
> have an LVS/ldirectord load-balancer cluster and a MySQL database
> cluster using drbd. Is there a good reason to upgrade to a newer version
> of heartbeat? Frankly, I'm currently inclined to leave well enough
> alone.

hmmmm...

well .4 is getting on a bit, but on the other hand if its bulletproof
for your workload and scenarios then i would be inclined endorse your
"leave well enough alone" approach.

I'd just recommend reviewing the changelogs in the later versions to
see if anything listed might apply to your configuration/setup.

worth mentioning however, is the performance improvements in .8 (when
it comes out).
i spent the last week-or-so of 2006 looking at the CRM's cpu
requirements in failover scenarios.  in the end I was able to reduce
them by about 65% compared to .7  (i have no relative measurements for
previous versions) and maybe thats something you'd upgrade to get.

good luck whatever you choose