Github user tsudukim commented on the pull request: https://github.com/apache/spark/pull/1262#issuecomment-48798261 Should we have only "stageId" as key of these HashMap? Related to SPARK-2298 at JIRA, I think both stage and attemptId should be included into key in order to discriminate the original stage from re-submitted (attemptId is incremented) stage.
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