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From "Thomas Poepping (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HADOOP-13344) Add option to exclude Hadoop's SLF4J binding
Date Mon, 11 Jul 2016 22:39:11 GMT

    [ https://issues.apache.org/jira/browse/HADOOP-13344?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15371819#comment-15371819
] 

Thomas Poepping commented on HADOOP-13344:
------------------------------------------

I'm sorry Allen, I don't think I understand how that makes this a script and pom patch for
any poms but the root? Wouldn't we just change the directory structure and where we put the
slf4j binding, then change the script to optionally *not* add that directory to the classpath
based on a variable ($HADOOP_REMOVE_SLF4J_BINDING maybe) ?

Thanks for the help.

> Add option to exclude Hadoop's SLF4J binding
> --------------------------------------------
>
>                 Key: HADOOP-13344
>                 URL: https://issues.apache.org/jira/browse/HADOOP-13344
>             Project: Hadoop Common
>          Issue Type: New Feature
>          Components: bin, scripts
>    Affects Versions: 2.8.0, 2.7.2
>            Reporter: Thomas Poepping
>            Assignee: Thomas Poepping
>              Labels: patch
>         Attachments: HADOOP-13344.patch
>
>
> If another application that uses the Hadoop classpath brings in its own SLF4J binding
for logging, and that jar is not the exact same as the one brought in by Hadoop, then there
will be a conflict between logging jars between the two classpaths. This patch introduces
an optional setting to remove Hadoop's SLF4J binding from the classpath, to get rid of this
problem.
> This patch should be applied to 2.8.0, as bin/ and hadoop-config.sh structure has been
changed in 3.0.0.



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