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From Vinod Kumar Vavilapalli <vino...@hortonworks.com>
Subject Re: Shoud I use MapReduce 0.2X, or 1.0?
Date Wed, 31 Oct 2012 19:11:37 GMT

There are two major release lines: 1.x and 2.x.

1.x is deemed stable and 2.x is considered alpha quality.

0.23.* is the last of 0.2X line. 0.23.* is used mostly by Yahoo! to stabilize the last code
minus some features present in 2.x like some HDFS HA work, PB use in RPC layer etc.

Thanks,
+Vinod

On Oct 31, 2012, at 10:25 AM, Pedro Sá da Costa wrote:

> I've noticed that Hadoop MapReduce 1.0.4 was released in 12 October 2012, and Hadoop
0.23.4 was released in 15 October 2012. I thought that with Hadoop 1.0, the Hadoop 0.2X had
become discontinued. If I want to start to use Hadoop MapReduce, which version should I use?
> 
> 
> What's the difference between Hadoop MapReduce 0.2X and Hadoop MapReduce 1.0? 
> 
> 
> -- 
> Best regards,
> 


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