Update upstream#27

Merged

GulajavaMinistudio merged 9 commits into

GulajavaMinistudio:masterfrom

Apr 26, 2017

Commits on Apr 25, 2017

[SPARK-20239][CORE] Improve HistoryServer's ACL mechanism

jerryshao
authored and
Marcelo Vanzin
committed
[SPARK-20453] Bump master branch version to 2.3.0-SNAPSHOT

JoshRosen
authored and
rxin
committed
[SPARK-20451] Filter out nested mapType datatypes from sort order in randomSplit

sameeragarwal
authored and
cloud-fan
committed
[SPARK-20455][DOCS] Fix Broken Docker IT Docs

original-brownbear
authored and
srowen
committed
[SPARK-20404][CORE] Using Option(name) instead of Some(name)

szhem
authored and
srowen
committed
[SPARK-18901][FOLLOWUP][ML] Require in LR LogisticAggregator is redundant

wangmiao1981
authored and
yanboliang
committed
[SPARK-20449][ML] Upgrade breeze version to 0.13.1

yanboliang
authored and
dbtsai
committed
[SPARK-5484][GRAPHX] Periodically do checkpoint in Pregel

ding
authored and
Felix Cheung
committed

Commits on Apr 26, 2017

[SPARK-18127] Add hooks and extension points to Spark

sameeragarwal
authored and
gatorsmile
committed