Github user vanzin commented on a diff in the pull request:
https://github.com/apache/spark/pull/17091#discussion_r104028425
--- Diff:
core/src/main/scala/org/apache/spark/scheduler/cluster/CoarseGrainedSchedulerBackend.scala
---
@@ -222,12 +222,17 @@ class
GitHub user jxiang opened a pull request:
https://github.com/apache/spark/pull/17091
[SPARK-19757][CORE] Executor with task scheduled could be killed due to
idleness
## What changes were proposed in this pull request?
In makeOffers, put in one synchronization block to check if
