Github user nathanmarz commented on the pull request:
https://github.com/apache/storm/pull/322#issuecomment-64515204
Storm's ISupervisor / INimbus interfaces let you control port assignment
external to Storm itself. I don't know about YARN, but that's how I got
storm-mesos working. The problem with dynamic ports is they make topology
management a lot more complex. Now it's not enough to know the worker
assignments to be able to send and receive messages, you also need the workers
to choose a port and broadcast it. This creates all sorts of additional failure
modes that don't currently exist. If we're going to add complexity to Storm,
there better be a very compelling reason for it. I don't see that with this
feature.
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