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Posted to hdfs-issues@hadoop.apache.org by "Chris Nauroth (JIRA)" <ji...@apache.org> on 2012/12/10 19:13:21 UTC

[jira] [Updated] (HDFS-4269) DatanodeManager#registerDatanode rejects all datanode registrations from localhost in single-node developer setup

     [ https://issues.apache.org/jira/browse/HDFS-4269?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Chris Nauroth updated HDFS-4269:
--------------------------------

     Target Version/s: 3.0.0, trunk-win  (was: trunk-win)
    Affects Version/s: 3.0.0

Adding 3.0.0 to Affects Version/s and Target Version/s.  This patch can commit to trunk and then merge to branch-trunk-win.
                
> DatanodeManager#registerDatanode rejects all datanode registrations from localhost in single-node developer setup
> -----------------------------------------------------------------------------------------------------------------
>
>                 Key: HDFS-4269
>                 URL: https://issues.apache.org/jira/browse/HDFS-4269
>             Project: Hadoop HDFS
>          Issue Type: Bug
>          Components: namenode
>    Affects Versions: 3.0.0, trunk-win
>            Reporter: Chris Nauroth
>            Assignee: Chris Nauroth
>         Attachments: HDFS-4269.1.patch
>
>
> HDFS-3990 is a change that optimized some redundant DNS lookups.  As part of that change, {{DatanodeManager#registerDatanode}} now rejects attempts to register a datanode for which the name has not been resolved.  Unfortunately, this broke single-node developer setups on Windows, because Windows does not resolve 127.0.0.1 to "localhost".

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