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https://issues.apache.org/jira/browse/HDFS-7702?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14297455#comment-14297455
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Ray commented on HDFS-7702:
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Wrote a draft proposal.
https://cwiki.apache.org/confluence/display/FLINK/Metadata+Moving+Tool+Design+Proposal+-+Effort+to+a+real+distributed+namenode
> Move metadata across namenode - Effort to a real distributed namenode
> ---------------------------------------------------------------------
>
> Key: HDFS-7702
> URL: https://issues.apache.org/jira/browse/HDFS-7702
> Project: Hadoop HDFS
> Issue Type: New Feature
> Reporter: Ray
> Assignee: Ray
>
> Implement a tool can show in memory namespace tree structure with
> weight(size) and a API can move metadata across different namenode. The
> purpose is moving data efficiently and faster, without moving blocks on
> datanode.
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