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https://issues.apache.org/jira/browse/HADOOP-12043?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15023166#comment-15023166
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Andrew Wang commented on HADOOP-12043:
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Hi Joel, this print is off by default, so it must have been turned on in your
environment. Check this config key: {{hadoop.shell.missing.defaultFs.warning}}
> Display warning if defaultFs is not set when running fs commands.
> -----------------------------------------------------------------
>
> Key: HADOOP-12043
> URL: https://issues.apache.org/jira/browse/HADOOP-12043
> Project: Hadoop Common
> Issue Type: Improvement
> Components: fs
> Affects Versions: 2.7.0
> Reporter: Lei (Eddy) Xu
> Assignee: Lei (Eddy) Xu
> Priority: Minor
> Fix For: 2.8.0
>
> Attachments: HDFS-8322.000.patch, HDFS-8322.001.patch,
> HDFS-8322.002.patch, HDFS-8322.003.patch, HDFS-8322.003.patch,
> HDFS-8322.004.patch, HDFS-8322.005.patch, HDFS-8322.006.patch
>
>
> Using {{LocalFileSystem}} is rarely the intention of running {{hadoop fs
> -ls}}.
> This JIRA proposes displaying a warning message if hadoop fs -ls is showing
> the local filesystem or using default fs.
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