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Posted to common-issues@hadoop.apache.org by "Shilun Fan (Jira)" <ji...@apache.org> on 2024/01/27 08:37:00 UTC

[jira] [Updated] (HADOOP-18653) LogLevel servlet to determine log impl before using setLevel

     [ https://issues.apache.org/jira/browse/HADOOP-18653?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Shilun Fan updated HADOOP-18653:
--------------------------------
        Hadoop Flags: Reviewed
    Target Version/s: 3.4.0

> LogLevel servlet to determine log impl before using setLevel
> ------------------------------------------------------------
>
>                 Key: HADOOP-18653
>                 URL: https://issues.apache.org/jira/browse/HADOOP-18653
>             Project: Hadoop Common
>          Issue Type: Sub-task
>          Components: common
>    Affects Versions: 3.4.0
>            Reporter: Viraj Jasani
>            Assignee: Viraj Jasani
>            Priority: Major
>              Labels: pull-request-available
>             Fix For: 3.4.0
>
>
> LogLevel GET API is used to set log level for a given class name dynamically. While we have cleaned up the commons-logging references, it would be great to determine whether slf4j log4j adapter is in the classpath before allowing client to set the log level.
> Proposed changes:
>  * Use slf4j logger factory to get the log reference for the given class name
>  * Use generic utility to identify if the slf4j log4j adapter is in the classpath before using log4j API to update the log level
>  * If the log4j adapter is not in the classpath, report error in the output



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