kumomta

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Wez Furlong eda083f083 dns-resolver: use thundering herd protection and add semaphore

This commit does two things:

* Migrate the limit of 128 concurrent lookups from the shaping code
  and into the general mx lookup code
* Adjust the mx lookup implementation to run inside the cache
  getter, which applies thundering herd protection to the lookup.

These together will constrain the amount of queries being sent
to the upstream dns resolver and reduce the chances of it being
overwhelmed, especially if we are doing duplicate queries from
multiple concurrent contexts simultaneously.

2025-04-06 08:45:49 -07:00

_index.md

add kumo.dns.lookup_mx

2023-03-15 09:34:23 -07:00

configure_resolver.md

docs: format example in configure_resolver.md

2025-03-28 14:35:16 -07:00

configure_unbound_resolver.md

docs: fix typo on configure_unbound_resolver page

2025-01-08 15:55:04 -07:00

lookup_addr.md

docs: update for 2023.08.22-4d895015 release