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From "Prasanth Jayachandran (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HIVE-9750) avoid log locks in operators
Date Mon, 23 Feb 2015 09:21:11 GMT

    [ https://issues.apache.org/jira/browse/HIVE-9750?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14333135#comment-14333135
] 

Prasanth Jayachandran commented on HIVE-9750:
---------------------------------------------

Another huge cost here is string concatenation. We should replace all string concats in debug
message with parametrized substitution (supported in log4j2).

> avoid log locks in operators
> ----------------------------
>
>                 Key: HIVE-9750
>                 URL: https://issues.apache.org/jira/browse/HIVE-9750
>             Project: Hive
>          Issue Type: Sub-task
>            Reporter: Gunther Hagleitner
>            Assignee: Gunther Hagleitner
>         Attachments: HIVE-9750.1.patch, HIVE-9750.2.patch
>
>
> Basically wrap all LOG.xx calls in isLogXXXEnabled to avoid unnecessary locks on these
calls.



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