Re: Hadoop book

unfortunately there is no book guide for the implementation but this book may help you : Hadoop: The Definitive Guide and you can find the code "of hadoop and mapreduce"with the comments in here: http://grepcode.com/

Question about How to record information about each executed task in hadoop mapreduce cluster?

Hi,, I am new here so I am sorry if it is not the right place for my question. I want to edit in hadoop source code So I can record information "in txt file"about each executed task in hadoop mapreduce cluster. Information will be like: job name, task name, input records and so on... and I want to