Github user mxm commented on the pull request:
https://github.com/apache/flink/pull/248#issuecomment-95990793
This will work for most use cases where the JobManager is started within
the same cluster as the TaskManagers. It will certainly fail if the JobManager
resides in a different network environment where the hostname cannot be
resolved by the TaskManagers.
I think it's ok to merge if we print a big warning when the job manager
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