UML and HA

["David L. Nicol" <david@kasey.umkc.edu>]

I was thinking about HA and process migration, since I've got MOSIX
up and running again, sort of.  One of the problems that all the
process migration systems have is mapping local PID to distant PID.

So here's where user mode linux could come in:  Machines could
pair up in a "buddy system" (or heavier redundancy -- flavor to
taste) and each system would maintain a UML snapshot of what its
buddy is doing.  That way, if the cubans detonate server A, server
R can activate it's UML backup of server A and gracefully handle
server A's business.



-- 
                                           David Nicol 816.235.1187
                        And the cow threw up seven times, and said:
            "Say it now and say it loud, I'm a cow and I am proud."


Linux-cluster: generic cluster infrastructure for Linux
Archive:       http://mail.nl.linux.org/linux-cluster/