hadoop-mapreduce-user mailing list archives

Site index · List index
Message view « Date » · « Thread »
Top « Date » · « Thread »
From Anty <anty....@gmail.com>
Subject Re: how to write this MapReduce
Date Mon, 26 Oct 2009 12:52:32 GMT
Does MultipleInputs meet this situation?
Does any one have any idea about this?

On Mon, Oct 26, 2009 at 7:44 PM, Anty <anty.rao@gmail.com> wrote:

> Hi:
> all
> I have a such use case:i have three files,each file is key-value pairs,
> file1:                         file2:                         file3:
> key1-value1A           key1-value1B           key1-value1C
> key2-value2A           key2-value2B           key2-value2C
> key3-value3A           kye3-value3B           kye3-value3C
>    .....                                  ......
> .....
> now ,i want to write a MR job to generate a file,
> file4:
> key1-(value1A,value1B,value1C)
> key2-(value2A,value2B,value2C)
> key3-(value3A,value3B,value3C)
> ..........
> Any suggestion will be appreciated.
> --
> Best Regards
> Anty Rao
>



-- 
Best Regards
Anty Rao

Mime
View raw message