Josh Rosen created SPARK-18640:
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Summary: Fix minor synchronization issue in
TaskSchedulerImpl.runningTasksByExecutors
Key: SPARK-18640
URL: https://issues.apache.org/jira/browse/SPARK-18640
Project: Spark
Issue Type: Bug
Components: Scheduler
Reporter: Josh Rosen
Priority: Minor
The method TaskSchedulerImpl.runningTasksByExecutors() accesses the mutable
executorIdToRunningTaskIds map without proper synchronization. We should fix
this.
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