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https://issues.apache.org/jira/browse/HDFS-13881?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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maobaolong updated HDFS-13881:
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Description:
Now, we want to copy a directory meta tree from a cluster's namenode to another
cluster's namenode.
So, i suggest that namenode can support export a directory to a image file, and
another namenode can import it.
> Export or Import a dirImage
> ---------------------------
>
> Key: HDFS-13881
> URL: https://issues.apache.org/jira/browse/HDFS-13881
> Project: Hadoop HDFS
> Issue Type: New Feature
> Components: namenode
> Affects Versions: 3.1.1
> Reporter: maobaolong
> Assignee: maobaolong
> Priority: Major
>
> Now, we want to copy a directory meta tree from a cluster's namenode to
> another cluster's namenode.
> So, i suggest that namenode can support export a directory to a image file,
> and another namenode can import it.
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