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https://issues.apache.org/jira/browse/HBASE-5858?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13260185#comment-13260185
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Roman Shaposhnik commented on HBASE-5858:
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Praveen, if what you're getting is an *error* you must be having a different
problem. I get the very same messages but they are harmless warnings.
> When HBase gets executed against Hadoop 2.X "SLF4j:CLASSPATH contains
> multiple SLF4j binding" warning is displayed
> ------------------------------------------------------------------------------------------------------------------
>
> Key: HBASE-5858
> URL: https://issues.apache.org/jira/browse/HBASE-5858
> Project: HBase
> Issue Type: Bug
> Components: scripts
> Affects Versions: 0.92.0, 0.92.1
> Reporter: Roman Shaposhnik
> Assignee: Roman Shaposhnik
> Priority: Minor
> Attachments: error.JPG
>
>
> Since HBase tries to find locations of the Hadoop jars from the environment
> in certain cases it ends up with extra SLF4j jars coming from Hadoop
> classpath. When that happens "SLF4j:CLASSPATH contains multiple SLF4j
> binding" warning gets displayed.
> The good news here is that the warning is just that -- a warning. The bad
> news is that it seems this issue will be tricky to fix properly. On one hand
> we would like Hadoop itself to give us transitive closure of the set of jar
> files required (computing that in the HBase script is a maintenance
> nightmare). On the other hand that set of jar files could contain some of the
> very same jars shipped with HBase.
> This problem existed for quiet some time. SLF4j is just the first component
> to complain.
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