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https://issues.apache.org/jira/browse/HADOOP-13344?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15385074#comment-15385074
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Thomas Poepping commented on HADOOP-13344:
------------------------------------------
Sorry for the late response guys, had some other stuff come up.
I've experimented some with the patch for trunk, and it looks like I should be
able to change the directory structure in
hadoop-assemblies/src/main/resources/assemblies/hadoop-dist.xml. I've added a
new directory: slf4j-lib for each component under
/share/hadoop/${hadoop.component}/lib, and verified that the slf4j lib is not
added for common.
Does this seem like it should work to you guys? The change "for each classpath"
only affects common and the webserver modules. I wanted to run the
implementation by you guys -- it doesn't seem as complicated as you made it
sound, so I'm sure I'm missing something.
> 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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