Xuefu Zhang created HIVE-9492:
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             Summary: Enable caching in MapInput for Spark
                 Key: HIVE-9492
                 URL: https://issues.apache.org/jira/browse/HIVE-9492
             Project: Hive
          Issue Type: Bug
          Components: Spark
            Reporter: Xuefu Zhang
            Assignee: Jimmy Xiang


Because of the IOContext problem (HIVE-8920, HIVE-9084), RDD caching is 
currently disabled in MapInput. Prototyping shows that the problem can solved. 
Thus, we should formalize the prototype and enable the caching.



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