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https://issues.apache.org/jira/browse/HDFS-17592?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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liuguanghua updated HDFS-17592:
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Attachment: FastCopy via Transfer.jpg
> FastCopy support data copy in different nameservices without federation
> -----------------------------------------------------------------------
>
> Key: HDFS-17592
> URL: https://issues.apache.org/jira/browse/HDFS-17592
> Project: Hadoop HDFS
> Issue Type: Sub-task
> Reporter: liuguanghua
> Assignee: liuguanghua
> Priority: Major
> Attachments: FastCopy via Transfer.jpg
>
>
> FastCopy is a faster data copy tools. In federation cluster or a single
> cluster , FastCopy copy blocks via hardlink. This is more much faster than
> original copy.
> FastCopy can support data copy via transfer in different nameservices without
> federation. In theory, it could save almost half the time compared to
> origianl copy.
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