I will just add: this is a very common problem with domains which return a
very low TTL, and/or use funky dynamic responses like geo-load balancing.
These companies think that it makes their infrastructure more reliable,
because the short TTL allows them to change the address quickly if
require
I suspect if you tcpdump/wireshark the DNS traffic, you'll find a query
goes out, and either the response is delayed by 2 seconds, or no response
is received and your client re-sends the request.
To understand this, inside your pod you'll need to find out what your
upstream DNS recursive server
