Re: why reduce doesn't work by HBase?

2012-11-16 Thread yonghu
Thanks for your suggestions On Thu, Nov 15, 2012 at 9:56 PM, Bertrand Dechoux decho...@gmail.com wrote: Hi Yong, A few ways to understand a problem (with Hadoop) : 1) Write tests, using MRUnit for example (http://mrunit.apache.org/) 2) Use @Override to make sure you are indeed overriding a

Re: why reduce doesn't work by HBase?

2012-11-15 Thread Bertrand Dechoux
Hi Yong, A few ways to understand a problem (with Hadoop) : 1) Write tests, using MRUnit for example (http://mrunit.apache.org/) 2) Use @Override to make sure you are indeed overriding a method 3) Use a break point while debugging The answer to your current problem : o.a.h.mapreduce.Reducer