[Infrastructures] state machines

Wesley Craig wes@umich.edu
Wed, 20 Sep 2006 15:01:32 -0400


On 20 Sep 2006, at 09:39, Brendan Strejcek wrote:
> You have a deterministic backup (data and code that can reinstantiate
> it) which behaves exactly as expected. However, between the time the
> backup was taken and the time restored, some UID mappings were changed
> on an external NIS or LDAP server, so files no longer have the correct
> ownership.

This is a great example problem.  Thank you for a positive  
contribution to the discussion.

If the backed up system had been running when the UID mapping  
changed, how would that have been handled?

> The essential problem is defining the boundaries of the system to be
> managed.

Indubitably.

> The state of the network is not an edge case.

I guess you're revealing where you place the boundary. :)

:wes