Assume we have foo.example.com, whose value changes unpredictably.

1. Initially, the A record of foo.example.com points to, say 1.2.3.4.
2. Start a grpc client, with the server pointed at foo.example.com:10000.
The client fails to
  connect since there's nothing running at 1.2.3.4:10000.
3. Start a grpc server at an IP address 1.2.3.5:10000.
4. Update the DNS server so that foo.example.com points to 1.2.3.5.

In this situation, the grpc client never seems to discover the server at
1.2.3.5, even when I set the DNS TTL very short.

Am I diagnosing the problem correct? And if so, is there a way to work
around?

-- 
yaz

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