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https://issues.apache.org/jira/browse/HDFS-9109?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Arpit Agarwal updated HDFS-9109:
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Attachment: (was: HDFS-9109.03.patch)
> dfs.datanode.dns.interface does not work with hosts file based setups
> ---------------------------------------------------------------------
>
> Key: HDFS-9109
> URL: https://issues.apache.org/jira/browse/HDFS-9109
> Project: Hadoop HDFS
> Issue Type: Bug
> Components: datanode
> Reporter: Arpit Agarwal
> Assignee: Arpit Agarwal
> Attachments: HDFS-9109.01.patch, HDFS-9109.02.patch,
> HDFS-9109.03.patch
>
>
> The configuration setting {{dfs.datanode.dns.interface}} lets the DataNode
> select its hostname by doing a reverse lookup of IP addresses on the specific
> network interface. This does not work {{when /etc/hosts}} is used to setup
> alternate hostnames, since {{DNS#reverseDns}} only queries the DNS servers.
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