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From "Jakob Homan (JIRA)" <j...@apache.org>
Subject [jira] Updated: (HDFS-1080) SecondaryNameNode image transfer should use the defined http address rather than local ip address
Date Tue, 08 Jun 2010 22:42:13 GMT

     [ https://issues.apache.org/jira/browse/HDFS-1080?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Jakob Homan updated HDFS-1080:
------------------------------

    Attachment: HDFS-1080-trunk-1.patch

Updated patch per Konstantin's comments. Checkpointer needed a bit more work to get the relevant
information to the right to the needed function, but should work exactly the same.  I'm going
to open a JIRA to combine this code duplication until the 2ndarryNN is removed.  

Konstantin pointed out that this will be an incompatible change in that, were one specifying
localhost as the 2nd/CP Nodes' address and relying on that value to be resolved on the node.
 For now on, one will need to specify the exact address to use, which is much more correct
in my opinion, particularly on production systems that may rely on IP aliasing.  I'll mark
this as incompatible.

> SecondaryNameNode image transfer should use the defined http address rather than local
ip address
> -------------------------------------------------------------------------------------------------
>
>                 Key: HDFS-1080
>                 URL: https://issues.apache.org/jira/browse/HDFS-1080
>             Project: Hadoop HDFS
>          Issue Type: Bug
>          Components: name-node
>            Reporter: Jakob Homan
>            Assignee: Jakob Homan
>         Attachments: HDFS-1080-trunk-1.patch, HDFS-1080-trunk.patch, HDFS-1080-Y20.patch
>
>
> Currently when telling the NN where to get the merged image, SNN uses getLocalHost.getAddr(),
which may not return the correct ip addr.  

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