[dns-operations] prefetching and thundering herds

Philip Homburg philip.homburg at ripe.net
Wed Jul 15 13:47:41 UTC 2020


On 2020/07/15 13:42 , Tony Finch wrote:
> If there is much of a herd, would it make sense to give some proportion of
> the clients a slightly reduced TTL so that they will trigger prefetch
> before the rest of them requery?

>From the point of view of latency hiding, it may make sense to always
reduce the ttl so that a recursive resolver can reply to the stub
resolver immediately and simultaniously trigger a refresh


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