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Posted to dev@hive.apache.org by "Sahil Takiar (JIRA)" <ji...@apache.org> on 2018/01/04 21:50:04 UTC

[jira] [Created] (HIVE-18378) Explain plan should show if a Map/Reduce Work is being cached

Sahil Takiar created HIVE-18378:
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             Summary: Explain plan should show if a Map/Reduce Work is being cached
                 Key: HIVE-18378
                 URL: https://issues.apache.org/jira/browse/HIVE-18378
             Project: Hive
          Issue Type: Sub-task
          Components: Spark
            Reporter: Sahil Takiar


It would be nice if the explain plan showed what {{MapWork}} / {{ReduceWork}} objects are being cached by Spark.

The {{CombineEquivalentWorkResolver}} is the only code that triggers Spark cache-ing, so we should be able to modify it so that it displays if a work object will be cached or not.



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