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Posted to dev@hive.apache.org by "Gopal V (JIRA)" <ji...@apache.org> on 2015/03/31 09:27:52 UTC

[jira] [Created] (HIVE-10162) LLAP: Avoid deserializing the plan > 1 times in a single thread

Gopal V created HIVE-10162:
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             Summary: LLAP: Avoid deserializing the plan > 1 times in a single thread
                 Key: HIVE-10162
                 URL: https://issues.apache.org/jira/browse/HIVE-10162
             Project: Hive
          Issue Type: Sub-task
    Affects Versions: llap
            Reporter: Gopal V
            Assignee: Gunther Hagleitner
             Fix For: llap
         Attachments: deserialize-plan-1.png, deserialize-plan-2.png

Kryo shows up in the critical hot-path for LLAP when using a plan with a very large filter condition, due to the fact that the plan is deserialized more than once for each task.

!deserialize-plan-1.png!

!deserialize-plan-2.png!



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