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MapReduce >> mail # user >> easy mv or heavy mv


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Re: easy mv or heavy mv
Yes, it just does a trivial update of the inodes (metainfo).

Daryn

On Aug 24, 2012, at 2:25 PM, Yue Guan <[EMAIL PROTECTED]> wrote:

> Hi, there
>
> I'm just want to know that for hadoop dfs -mv. Does 'mv' just change the
> meta info, or really copy data around on the hdfs? Thank you very much!
>
> Thanks