Github user tdas commented on the pull request:
https://github.com/apache/spark/pull/1751#issuecomment-51282952
I am not sure adding a direct dependency on zookeeper in the core is a good
idea. What if, in future, we do not depend on Curator? If no one remembers this
reason of why we added Zookeeper, we will still have an unnecessary dependency
of zookeeper on the core. In fact in generate, the reason kafka, flume, and
other stuff were moved to external was so that they have no bearing on the
dependencies in core. So if there is a solution that fixes external stuff
without touching dependencies of core, then thats better.
What do you think? @pwendell
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