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https://issues.apache.org/jira/browse/HDFS-10382?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15285184#comment-15285184
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Allen Wittenauer commented on HDFS-10382:
-----------------------------------------
I'm very hesitant towards this patch because Bad Things(tm) happen if numeric
user names ever need to be resolved at the system level. (hint: they aren't
supported by POSIX.)
> In WebHDFS numeric usernames do not work with DataNode
> ------------------------------------------------------
>
> Key: HDFS-10382
> URL: https://issues.apache.org/jira/browse/HDFS-10382
> Project: Hadoop HDFS
> Issue Type: Bug
> Components: webhdfs
> Reporter: ramtin
> Assignee: ramtin
> Attachments: HADOOP-10382.patch
>
>
> Operations like {code:java}curl -i
> -L"http://<HOST>:<PORT>/webhdfs/v1/<PATH>?user.name=0123&op=OPEN"{code} that
> directed to DataNode fail because of not reading the suggested domain pattern
> from the configuration.
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