[jira] [Created] (SPARK-2634) MapOutputTrackerWorker.mapStatuses should be thread-safe

[Shixiong Zhu (JIRA)]

Shixiong Zhu created SPARK-2634:
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             Summary: MapOutputTrackerWorker.mapStatuses should be thread-safe
                 Key: SPARK-2634
                 URL: https://issues.apache.org/jira/browse/SPARK-2634
             Project: Spark
          Issue Type: Bug
          Components: Spark Core
    Affects Versions: 1.0.0
            Reporter: Shixiong Zhu


MapOutputTrackerWorker.mapStatuses will be used concurrently, so it should be a 
thread-safe Map.



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