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Title: dgram: skip dns.lookup() for literal IP addresses by BridgeAR · Pull Request #64133 · nodejs/node · GitHub

Open Graph Title: dgram: skip dns.lookup() for literal IP addresses by BridgeAR · Pull Request #64133 · nodejs/node

X Title: dgram: skip dns.lookup() for literal IP addresses by BridgeAR · Pull Request #64133 · nodejs/node

Description: dgram resolved the destination through dns.lookup() on every unconnected send() and on the implicit first-send bind, even when the destination was already a literal IP. The address resolves to itself, so the call is redundant, and tools that instrument dns.lookup() record a lookup for every datagram sent to an IP. Skip the default dns.lookup() for a literal IP of the socket's family and report it on the next tick, keeping dns.lookup()'s asynchronous contract. A custom lookup function is still consulted. Refs: DataDog/dd-trace-js#2984

Open Graph Description: dgram resolved the destination through dns.lookup() on every unconnected send() and on the implicit first-send bind, even when the destination was already a literal IP. The address resolves to itse...

X Description: dgram resolved the destination through dns.lookup() on every unconnected send() and on the implicit first-send bind, even when the destination was already a literal IP. The address resolves to itse...

Opengraph URL: https://github.com/nodejs/node/pull/64133

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