dmiller 50ceac5753 mass_dns: only scale back for initial requests ...

Some requests just take longer; they may have lots of recursion or a
slow authoritative server. That won't change on retransmissions, so if
we treat all requests and retransmissions equally, we get a long tail of
retransmits with smaller and smaller capacity (parallelism). Instead, we
will use the initial-request period to determine server capacity and
then not change it during the retransmit phase.

2024-05-16 19:31:45 +00:00

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