[Linux-HA] 2 subnets separated by cisco 6509 switch
alanr at unix.sh
Wed Mar 16 16:01:35 MST 2005
Carson Gaspar wrote:
> --On Wednesday, March 16, 2005 06:18:46 -0700 Alan Robertson
> <alanr at unix.sh> wrote:
>> Although it's true that we're pretty practially oriented, I don't think
>> we're *quite* as ignorant as you imply ;-).
> I didn't mean to imply ignorance of something as basic as quorum ;-)
> I do think that writing our own messaging protocol from scratch for n >
> 2 servers was effort that could have been better spent, given the number
> of existing systems. But as I didn't do the heavy lifting, I really
> can't bitch - perhaps there are issues of which I'm unaware.
The messaging protocol was written about 5 years ago. It has always
supported more than 2 nodes. Nothing open source was available at that
time. In fact, only in the last year has anything else open source shown
up (one is GPL and one is BSD-licensed).
And, they still assume that they run on a trusted network - a seriously
broken assumption AFAICT.
Lots of research projects existed. But they were research projects, and
not licensed for OSS work.
Alan Robertson <alanr at unix.sh>
"Openness is the foundation and preservative of friendship... Let me claim
from you at all times your undisguised opinions." - William Wilberforce
More information about the Linux-HA