Github user vanzin commented on the pull request:
https://github.com/apache/spark/pull/2449#issuecomment-56099817
Hi, mostly so I understand what's going on (I've traced the code but it's
kinda hard to know if I covered everything), how are jars distributed in yarn
cluster mode after your change?
It seems to me that your change just makes the `--jars` command line option
be ignored for yarn cluster mode. If that's the case, I'm not sure I like it so
much...
If that's not the case, could you clarify in the PR description how
`--jars` works in yarn cluster mode? That would help others who might want to
understand why this change works in spite of looking counter-intuitive.
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