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https://issues.apache.org/jira/browse/HDFS-6822?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14086956#comment-14086956
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Jing Zhao commented on HDFS-6822:
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I tested the patch in a secured cluster and the patch can solve the issue.
> In branch-1, Namenode and datanode fails to replace "_HOST" to hostname for
> hadoop.http.authentication.kerberos.principal
> -------------------------------------------------------------------------------------------------------------------------
>
> Key: HDFS-6822
> URL: https://issues.apache.org/jira/browse/HDFS-6822
> Project: Hadoop HDFS
> Issue Type: Bug
> Components: security
> Reporter: Jing Zhao
> Assignee: Jing Zhao
> Attachments: HDFS-6822.000.patch
>
>
> This is an issue reported by [~yeshavora]:
> In branch-1, Namenode fails to start with "HTTP/[email protected]" value of
> hadoop.http.authentication.kerberos.principal property in core-site.xml. It
> only supports hostname instead _HOST. Namenode can support
> "HTTP/[email protected]" value.
> Same issue also exists with datanodes.
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