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https://issues.apache.org/jira/browse/HDFS-12028?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16064246#comment-16064246
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Anu Engineer commented on HDFS-12028:
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+1 [~vagarychen] Thanks for taking care of this. I independently tested this
now in a cluster and I can confirm it works well. Thank you for taking care of
this. [~cheersyang] Thanks for the review and the commit.
> Ozone: CLI: remove noisy slf4j binding output from hdfs oz command.
> -------------------------------------------------------------------
>
> Key: HDFS-12028
> URL: https://issues.apache.org/jira/browse/HDFS-12028
> Project: Hadoop HDFS
> Issue Type: Sub-task
> Components: ozone
> Affects Versions: HDFS-7240
> Reporter: Xiaoyu Yao
> Assignee: Chen Liang
> Attachments: HDFS-12028-HDFS-7240.001.patch
>
>
> Currently when you run CLI "hdfs oz ...", there always a noisy slf4j biding
> issue log output. This ticket is opened to removed it.
> {code}
> xyao$ hdfs oz
> SLF4J: Class path contains multiple SLF4J bindings.
> SLF4J: Found binding in
> [jar:file:/Users/xyao/deploy/ozone/hadoop-3.0.0-alpha4-SNAPSHOT/share/hadoop/common/lib/slf4j-log4j12-1.7.25.jar!/org/slf4j/impl/StaticLoggerBinder.class]
> SLF4J: Found binding in
> [jar:file:/Users/xyao/deploy/ozone/hadoop-3.0.0-alpha4-SNAPSHOT/share/hadoop/hdfs/lib/logback-classic-1.0.10.jar!/org/slf4j/impl/StaticLoggerBinder.class]
> SLF4J: See http://www.slf4j.org/codes.html#multiple_bindings for an
> explanation.
> SLF4J: Actual binding is of type [org.slf4j.impl.Log4jLoggerFactory]
> {code}
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