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From Jason Venner <jason.had...@gmail.com>
Subject Re: discyp between different versions of Hadoop...
Date Mon, 07 Sep 2009 07:24:34 GMT
Thank you, I don't think of the ftp interface at all and had completely
forgotten it.

On Mon, Sep 7, 2009 at 12:00 AM, Erik Forsberg <forsberg@opera.com> wrote:

> On Sun, 6 Sep 2009 22:45:28 -0700 (PDT)
> C G <parallelguy@yahoo.com> wrote:
>
> > Hi All:
> > Does anybody know if it's possible to distcp between an old version
> > of Hadoop (0.15.x, for example) and a modern version (0.19.2)?
>
> Yes:
>
> 1) Run the distcp job on the newer cluster.
> 2) Use the hftp method in the source URI.
>
> Example:
>
> hadoop distcp hftp://oldclusternamenode:50070/path/to/src \
> hdfs://newclusternamenode:8020/path/to/dst
>
> See http://hadoop.apache.org/common/docs/r0.20.0/distcp.html#cpver
>
> Cheers,
> \EF
> --
> Erik Forsberg <forsberg@opera.com>
> Developer, Opera Software - http://www.opera.com/
>



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