Github user zentol commented on the issue:
https://github.com/apache/flink/pull/2216
It would work but is more work for the user and is less prone to version
mismatches. Not using a fat-jar means that the users have to provide the
dependencies and put them in the `/libs` folder themselves. For ganglia for
example this would mean copying 5 jars. And there is no guarantee that the
version against which the reporter was compiled is identical to the one
provided at runtime.
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