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Posted to dev@hive.apache.org by "Gopal V (JIRA)" <ji...@apache.org> on 2014/09/19 08:37:33 UTC

[jira] [Created] (HIVE-8188) ExprNodeGenericFuncEvaluator::_evaluate() loads class annotations in a tight loop

Gopal V created HIVE-8188:
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             Summary: ExprNodeGenericFuncEvaluator::_evaluate() loads class annotations in a tight loop
                 Key: HIVE-8188
                 URL: https://issues.apache.org/jira/browse/HIVE-8188
             Project: Hive
          Issue Type: Bug
          Components: UDF
    Affects Versions: 0.14.0
            Reporter: Gopal V
         Attachments: udf-deterministic.png

When running a near-constant UDF, most of the CPU is burnt within the VM trying to read the class annotations for every row.

!udf-deterministic.png!



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