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by jgehrcke
1789 days ago
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There is real need, and there are solutions. NodeJS has a built-in DNS resolution API which is fully async / libuv-cooperative: https://nodejs.org/api/dns.html#dns_dns_resolve_hostname_rrt... Other async runtimes bundle libs like c-ares to implement non-threadpool-based async DNS. quoting the nodejs docs: "These functions are implemented quite differently than dns.lookup(). They do not use getaddrinfo(3) and they always perform a DNS query on the network. This network communication is always done asynchronously, and does not use libuv's threadpool." |
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