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[SPARK-24677][Core]Avoid NoSuchElementException from MedianHeap#21656

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cxzl25 wants to merge 5 commits intoapache:masterapache/spark:masterfrom

cxzl25:fix_MedianHeap_emptycxzl25/spark:fix_MedianHeap_emptyCopy head branch name to clipboard

Conversation Commits5 (5)Checks Files changed

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[SPARK-24677][Core]Avoid NoSuchElementException from MedianHeap#21656
cxzl25 wants to merge 5 commits intoapache:masterfrom
cxzl25:fix_MedianHeap_empty

Commits

Commits on Jun 28, 2018

MedianHeap is empty when speculation is enabled, causing the SparkContext to stop.
cxzl25
committed
Add a unit test:[SPARK-24677] MedianHeap should not be empty when speculation is enabled
cxzl25
committed

Commits on Jul 10, 2018

speculationEnabled && !isZombie
cxzl25
committed
change test name
cxzl25
committed
use actual time of successful task
cxzl25
committed

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