Github user mxm commented on the issue:
https://github.com/apache/flink/pull/2917
>Can we try and preserve both in some way? When a logical hostname is
specified, we use that one in the Akka URLs. When an IP address is specified,
we normalize it and use it.
Detecting whether we have an IPv4/IPv6 address or a hostname should be
possible. Let me see if I can incorporate that in the PR.
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