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From "Raghu Angadi (JIRA)" <j...@apache.org>
Subject [jira] Resolved: (HADOOP-697) Duplicate data node name calculation in Datanode constructor
Date Tue, 20 Mar 2007 23:04:32 GMT

     [ https://issues.apache.org/jira/browse/HADOOP-697?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Raghu Angadi resolved HADOOP-697.
---------------------------------

    Resolution: Fixed

> Duplicate data node name calculation in Datanode constructor
> ------------------------------------------------------------
>
>                 Key: HADOOP-697
>                 URL: https://issues.apache.org/jira/browse/HADOOP-697
>             Project: Hadoop
>          Issue Type: Improvement
>          Components: dfs
>    Affects Versions: 0.8.0
>            Reporter: Hairong Kuang
>         Assigned To: Raghu Angadi
>
> A data node name is calculated twice when a DataNode object is constructed. One is computed
at line 158 in DataNode.java using  the statement:
>   InetAddress.getLocalHost().getHostName().
> The value is passed the private DataNode constructor but is never used. The name is recomputed
at lines 189-192 using the statement:
>  DNS.getDefaultHost(
>    conf.get("dfs.datanode.dns.interface", "default"), 
>    conf.get("dfs.datanode.dns.nameserver", "default"))".

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