Github user liancheng commented on the pull request:
https://github.com/apache/spark/pull/7992#issuecomment-128629906
Hey @srowen, actually the #7929 didn't completely fix the master build, and
it had been failing non-deterministically. I opened #7994 as a follow-up (well,
3 hours later than this PR. My bad, I should have left an early message in
#7929). Now all releases of version 2.0.0 are included. But I made it one more
step further by completely overriding Hive `ShimLoader` in
`overrideHadoopShims`. The original purpose was for debugging: I'd like to log
which `HadoopShims` is actually loaded for which Hadoop version. Since
`ShimLoader` works in a lazy-initialization manner, this change should be safe.
Please find more details in #7994. Hopefully the comment part in #7994 makes
sense now :)
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