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https://issues.apache.org/jira/browse/HIVE-8188?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Gunther Hagleitner updated HIVE-8188:
-------------------------------------
Resolution: Fixed
Fix Version/s: 0.15.0
Status: Resolved (was: Patch Available)
Committed to trunk.
> 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
> Assignee: Gopal V
> Labels: Performance
> Fix For: 0.15.0
>
> Attachments: HIVE-8188.1.patch, HIVE-8188.2.patch,
> 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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