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Date: Sat, 30 Oct 2010 12:36:17 -0700
Message-ID: <AANLkTinTi9EEHS=64UUTOeEwj=prP3+bmhocTMmbtZ2_@mail.gmail.com>
Subject: Re: Hadoop Reduce is never called
From: abhishek sharma <absharma@usc.edu>
To: common-user@hadoop.apache.org
Cc: core-user@hadoop.apache.org
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The println statement might be showing up in .out file for TaskTracker
machines executing the Reduce Task.

Abhishek

On Sat, Oct 30, 2010 at 12:18 PM, Cameron_ <rch3@sfu.ca> wrote:
>
> Hi,
>
> I am new to Hadoop and new to the community. =A0I am using Hadoop 0.20.2 =
and
> working through the LineIndexer example. =A0I =A0have defined the Reducer=
 using
> the following line:
>
> job.setReducerClass (LineIndexerReducer.class);
>
> The full code is in =A0http://old.nabble.com/file/p30094575/LineIndexer.j=
ava
> LineIndexer.java . =A0My Reducer code is
> http://old.nabble.com/file/p30094575/LineIndexerReducer.java
> LineIndexerReducer.java . =A0I have a trace print statement in the reduce
> method of the Reducer c;ass. =A0This println statement never gets execute=
d
> indicating that my Reducer never gets called. =A0My mapper,
> http://old.nabble.com/file/p30094575/LineIndexerMapper.java
> LineIndexerMapper.java =A0works correctly.
>
> Does anyone have any idea what I have done wrong?
>
> Thank you in advance,
>
> Cameron
>
>
>
> --
> View this message in context: http://old.nabble.com/Hadoop-Reduce-is-neve=
r-called-tp30094575p30094575.html
> Sent from the Hadoop core-user mailing list archive at Nabble.com.
>
>