Github user uce commented on the pull request:
https://github.com/apache/flink/pull/248#issuecomment-95981935
I've just checked EC2. The default AMIs all return the cloud internal
hostname, which is accessible (given the correct security setup). I count this
as an indicator that just using `hostname` is a reasonable approach.
Before merging, I would like to hear another opinion on this though.
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