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https://issues.apache.org/jira/browse/HDFS-1080?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12876901#action_12876901
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Konstantin Shvachko commented on HDFS-1080:
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+1.
Yes, this is incompatible in the sense that currently NN and SNN can
communicate if SNN uses local host - the default value for its http address,
while after the patch they wont be able to. I also think this is a correct
behavior. We should clearly mark this in release notes.
> 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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