I don't remember seeing these messages before, maybe I'm wrong. 
Question is, the node 2 database I'm replicating to, is already empty. 
Does slony simply try a wholesale truncation of all replicated tables 
anyway?

Also, I see a couple messages like these:

truncate of "public"."foo" failed - doing delete

I don't understand why the truncation would fail.

-- 
Until later, Geoffrey

Those who would give up essential Liberty, to purchase a little
temporary Safety, deserve neither Liberty nor Safety.
  - Benjamin Franklin