Anu Engineer commented on HDFS-12028:

[~elek] Just told me that I have accidentally broken this patch in ozone tree 
while committing HDFS-12115, He will fix it. Sorry for the noise in tests till 
it is fixed.

> 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
>             Fix For: HDFS-7240
>         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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