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From Jason Yang <lin.yang.ja...@gmail.com>
Subject How to get the number of node in cluster?
Date Wed, 26 Sep 2012 05:40:51 GMT
Hi, all

As I have to run my MapReduce program on clusters of different size, and I
would like the reducer number adapt to (0.95 * NodeNo. *
mapred.tasktracker.reduce.tasks.maximum) automatically, so I was wondering
how to get get the number of node in cluster in a MapReduce Job?


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