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https://issues.apache.org/jira/browse/HDFS-10892?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15527755#comment-15527755
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Allen Wittenauer commented on HDFS-10892:
-----------------------------------------
The Dockerfile that ships with Hadoop does not force a UTF-8 locale. So it
will inherit whatever locale was running at the UNIX level. Apache Yetus will
only force the locale to be a UTF-8 variant if shellcheck is involved.
I'd recommend that if the test needs UTF-8, then the test should set the locale
it needs and then restore. If setting the UTF-8 locale fails, then the test
should be skipped. There's no guarantee that a user running the test is even
UTF-8 capable.
> Add unit tests for HDFS command 'dfs -tail' and 'dfs -stat'
> -----------------------------------------------------------
>
> Key: HDFS-10892
> URL: https://issues.apache.org/jira/browse/HDFS-10892
> Project: Hadoop HDFS
> Issue Type: Sub-task
> Components: fs, shell, test
> Reporter: Mingliang Liu
> Assignee: Mingliang Liu
> Attachments: HDFS-10892.000.patch, HDFS-10892.001.patch,
> HDFS-10892.002.patch, HDFS-10892.003.patch, HDFS-10892.004.patch
>
>
> I did not find unit test in {{trunk}} code for following cases:
> - HDFS command {{dfs -tail}}
> - HDFS command {{dfs -stat}}
> I think it still merits to have one though the commands have served us for
> years.
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