-Re: Debug MR tasks impossible.
Brock Noland 2012-03-29, 16:07
Can I suggest unit testing with MRUnit:
On Thu, Mar 29, 2012 at 10:33 AM, Pedro Costa <[EMAIL PROTECTED]> wrote:
> I'm trying to debug map and reduce tasks for a quite long time, and it seems
> that it's impossible. MR are launched in new process and there's no way to
> debug them. Even with IsolationRunner class it's impossible. This isn't good
> because I really need to debug the class, to understand some changes that I
> made to the code.
> I wonder how MapReduce programmers could debug the code that they
> Best regards,
Apache MRUnit - Unit testing MapReduce - http://incubator.apache.org/mrunit/