questions concerning Linux HA

[alanr@bell-labs.com]

Mike Wangsmo wrote:
> 
> So what is the status of the HA project for Linux?  I have been working
> quite extensively on producing a list of projects that need to be done,
> both at a core level as well as a more superficial level.
> 
> I want to avoid duplications of efforts and I also want to see what
> level of interest in working on some projects the Linux community has.

You can see pointers to (almost) everything I know about at my Linux-HA web
site:	http://www.henge.com/~alanr/ha/

There are (at least) three Linux-HA efforts already ongoing, and another
Sun-based open source effort (which isn't yet on my web page).

I wrote some heartbeat code and have done an integration with some IP address
takeover code from Horms.  This development is occasionally active, and I
expect to find some time to work on it in the next few months.

The Ericcson folks have a fairly advanced implementation based on their own
interpreted language "Erlang".  This appears to be a fairly active
development.

Stephen C. Tweedie (also of Red Hat) has begun what seems like a sophisticated
implementation.  It's in a sort of stasis while he works on some filesystem
code.

If anyone disagrees with my summary, my apologies, and please let me know --
it's intended to be accurate.

There may be some more interest (and effort) from persons in my company
(Lucent Technologies) in the next few months, but that remains to be seen.


	-- Alan Robertson
	   alanr@bell-labs.com