Update upstream#13

Merged

GulajavaMinistudio merged 3 commits intoGulajavaMinistudio:masterfrom

Apr 10, 2017

Commits on Apr 9, 2017

[MINOR] Issue: Change "slice" vs "partition" in exception messages (and code?)

asmith26
authored and
srowen
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[SPARK-19991][CORE][YARN] FileSegmentManagedBuffer performance improvement
srowen
committed
[SPARK-20260][MLLIB] String interpolation required for error message

Vijay Ramesh
authored and
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