From 57f447267c16e67901f3454b5f37151786c43927 Mon Sep 17 00:00:00 2001
From: "Miss Islington (bot)"
 <31488909+miss-islington@users.noreply.github.com>
Date: Tue, 30 Aug 2022 01:58:14 -0700
Subject: [PATCH] [3.10] gh-91305: Add a note about DatagramHandler and DNS
 latency. (GH-96380) (GH-96400)

---
 Doc/library/logging.handlers.rst | 7 +++++++
 1 file changed, 7 insertions(+)

diff --git a/Doc/library/logging.handlers.rst b/Doc/library/logging.handlers.rst
index f125dfe64a0..a0129279f4d 100644
--- a/Doc/library/logging.handlers.rst
+++ b/Doc/library/logging.handlers.rst
@@ -572,6 +572,13 @@ over UDP sockets.
    Returns a new instance of the :class:`DatagramHandler` class intended to
    communicate with a remote machine whose address is given by *host* and *port*.
 
+   .. note:: As UDP is not a streaming protocol, there is no persistent connection
+      between an instance of this handler and *host*. For this reason, when using a
+      network socket, a DNS lookup might have to be made each time an event is
+      logged, which can introduce some latency into the system. If this affects you,
+      you can do a lookup yourself and initialize this handler using the looked-up IP
+      address rather than the hostname.
+
    .. versionchanged:: 3.4
       If ``port`` is specified as ``None``, a Unix domain socket is created
       using the value in ``host`` - otherwise, a UDP socket is created.
-- 
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