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[GH-ISSUE #373] Memoize concurrent requests in the Resolver #174
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starred/hickory-dns#174
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Originally created by @bluejekyll on GitHub (Apr 5, 2018).
Original GitHub issue: https://github.com/hickory-dns/hickory-dns/issues/373
In the pessimistic case where two requests occur at the exact same moment, concurrently across threads, the Resolver will perform parallel duplicate requests. We need to introduce memoization, perhaps in the DnsLru cache, to collapse all of these requests into a single network request.
@marcus0x62 commented on GitHub (Oct 29, 2025):
Implemented in #3328