I ran another test -- I thought it might have something to do with 'euca-run-instances -nxx'. So, starting with a just-booted cloud, I ran a sequence of 'euca-run-instances -n10 ...' intermixed with 'euca-describe-availability-zones verbose'. I then stopped for lunch, and then ran two more e-d-a-z.
I ran another test -- I thought it might have something to do with 'euca-run-instances -nxx'. So, starting with a just-booted cloud, I ran a sequence of 'euca-run-instances -n10 ...' intermixed with 'euca-describe- availability- zones verbose'. I then stopped for lunch, and then ran two more e-d-a-z.