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https://issues.apache.org/jira/browse/HDFS-3233?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13446272#comment-13446272
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Daryn Sharp commented on HDFS-3233:
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There's a {{NetUtils.getCanonicalUri}} that might meet your needs.
> Move IP to FQDN conversion from DatanodeJSPHelper to DatanodeID
> ---------------------------------------------------------------
>
> Key: HDFS-3233
> URL: https://issues.apache.org/jira/browse/HDFS-3233
> Project: Hadoop HDFS
> Issue Type: Improvement
> Reporter: Eli Collins
> Priority: Minor
> Labels: newbie
>
> In a handful of places DatanodeJSPHelper looks up the IP for a DN and then
> determines a FQDN for the IP. We should move this code to a single place, a
> new DatanodeID to return the FQDN for a DatanodeID.
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