Github user srowen commented on the pull request:
https://github.com/apache/spark/pull/10404#issuecomment-166556768
Yeah the benefits of supporting only 2.6 would be roughly:
- Another Jenkins build or two goes away
- Less JAR hell to reason about / newer transitive dependencies
- Can use newer APIs, mostly YARN (I'm thinking of the history server stuff
from the looong standing SPARK-1537)
- Bug fixes
I'm going to put together a change to remove the old deprecated API calls
from <2.2, and will try to quantify what else can go away, to better quantify
that part.
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