[dns-operations] co-operative cacheing
dot at dotat.at
Wed May 7 21:10:29 UTC 2008
My email servers each have a local DNS cache + recursive resolver, to
simplify administration and spread the load. The disadvantage is that one
server might spend ages doing a full recursive lookup when another one
already has the answer. It would be nice if a server could reduce latency
by asking the other members of a cluster if they already have an answer.
Something like the co-operative cacheing that was implemented for HTTP.
Has anyone done this?
f.anthony.n.finch <dot at dotat.at> http://dotat.at/
NORTH UTSIRE SOUTH UTSIRE: VARIABLE BECOMING NORTHWESTERLY 3 OR 4,
OCCASIONALLY 6 IN SOUTH UTSIRE. SLIGHT OR MODERATE. FOG PATCHES. MODERATE OR
POOR, OCCASIONALLY VERY POOR.
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