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From Owen O'Malley <owen.omal...@gmail.com>
Subject Re: Hadoop Compatibility and EMR
Date Sun, 21 Mar 2010 19:26:33 GMT
I believe you need to take two jumps. I believe it is 15-> 18 -> 20.  
I'd strongly suggest trying a practice file system first. Did we have  
owners and perms in 15? If not, you'll need to set owners and perms.

-- Owen

On Mar 21, 2010, at 12:23 AM, "ilayaraja" <ilayaraja@rediff.co.in>  
wrote:

> Hi,
>
> We 've been using hadoop 15.5 in our production environment where we  
> have about 10 TB of data stored on the dfs.
> The files were generated as mapreduce output. We want to move our  
> env. to Amazon Elastic Map Reduce (EMR) which throws the following  
> questions to us:
>
> 1. EMR supports only hadoop 19.0 and above. Is it possible to use  
> the current data that were generated with hadoop 15.5 from hadoop  
> 19.0?
>
> 2. Or how can we make it possible to use or update to hadoop 19.0  
> from hadoop 15.5? What are the issues expected while doing so?
>
>
> Regards,
> Ilayaraja
>

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