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From He Chen <airb...@gmail.com>
Subject About MapReduce's Setup
Date Wed, 13 Oct 2010 20:24:43 GMT
Hi, all

I found out that if the there is no map slot, Hadoop will use reduce slot to
setup mapreduce job when I submit a series of jobs.

The first two jobs setuped themselves with a MapAttempt. However, they
occupy all the map slots. When the third job comes, I find out it uses the
ReduceAttempt to du the setup. After that, no more setup logged in the job
history.

Am I correct?


Chen

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