In the interim meeting, Lyle mentioned logging ECS misses, and try to get
missing cost points.
How about taking that one step further, and log popular sources &
destinations, even if the server has cost data for them? E.g., suppose N
different clients request costs from endpoint X. That implies X is a
popular server, and the ALTO server should try to get cost data from X to
as many other endpoints as possible.
Which leads to data mining ECS queries. Eg, collect ({src-eps}, {dst-eps},
client-ep) tuples. From this we could find popular sources & destinations,
and detect clusters of ALTO-using clients.
Of course, that does raise security issues. Eg, someone could use that to
discover that computers in the office of (insert politician name here) do
ECS queries for known X-rated servers. This might discourage clients from
using ECS, and encourage them to use full cost maps instead.
- Wendy Roome
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