Github user berngp commented on the pull request:
https://github.com/apache/spark/pull/507#issuecomment-41332599
@pwendell since in the Hadoop environment there is no shading of Thrift or
Protobufs deciding which dependencies work with what is a complete hassle. This
is one particular issue that Bigtop solves by defining static versions that
will work together. I know I am not giving an answer.
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