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Date: Fri, 11 May 2012 05:42:46 +0000 (UTC)
From: "Aaron T. Myers (JIRA)" <jira@apache.org>
To: hdfs-issues@hadoop.apache.org
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Subject: [jira] [Updated] (HDFS-3404) Make putImage in GetImageServlet infer
 remote address to fetch from
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     [ https://issues.apache.org/jira/browse/HDFS-3404?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Aaron T. Myers updated HDFS-3404:
---------------------------------

    Status: Patch Available  (was: Open)
    
> Make putImage in GetImageServlet infer remote address to fetch from
> -------------------------------------------------------------------
>
>                 Key: HDFS-3404
>                 URL: https://issues.apache.org/jira/browse/HDFS-3404
>             Project: Hadoop HDFS
>          Issue Type: Improvement
>    Affects Versions: 2.0.0
>            Reporter: Aaron T. Myers
>            Assignee: Aaron T. Myers
>         Attachments: HDFS-3404.patch, HDFS-3404.patch
>
>
> As it stands, daemons which perform checkpointing must determine their own address on which they can be reached, so that the NN which they checkpoint against knows what address to fetch a merged fsimage from. This causes problems if, for example, the daemon performing checkpointing binds to 0.0.0.0, and thus can't be sure of what address the NN can reach it at.

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