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From "Sergey Shelukhin (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HIVE-12281) Vectorized MapJoin - use Operator::isLogDebugEnabled
Date Wed, 28 Oct 2015 18:13:27 GMT

    [ https://issues.apache.org/jira/browse/HIVE-12281?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14978927#comment-14978927
] 

Sergey Shelukhin commented on HIVE-12281:
-----------------------------------------

The logging call itself is expensive, at least before log4j2. With log4j2 it's supposed to
be cheaper but we haven't really tested

> Vectorized MapJoin - use Operator::isLogDebugEnabled
> ----------------------------------------------------
>
>                 Key: HIVE-12281
>                 URL: https://issues.apache.org/jira/browse/HIVE-12281
>             Project: Hive
>          Issue Type: Bug
>          Components: Vectorization
>    Affects Versions: 1.3.0, 2.0.0
>            Reporter: Gopal V
>            Assignee: Gopal V
>            Priority: Minor
>         Attachments: HIVE-12281.1.patch, vector-map-logging.png
>
>
> !vector-map-logging.png!



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