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Date: Fri, 29 Mar 2013 21:10:09 +0100
Message-ID: 
 <CADfVb56Of1cS5eS2=9BG9bqhWPM66BM5mWNbhx+ZDnVazgex1Q@mail.gmail.com>
Subject: Re: Understanding Sys.output from mapper & partitioner
From: Jens Scheidtmann <jens.scheidtmann@gmail.com>
To: user@hadoop.apache.org, Sai Sai <saigraph@yahoo.in>
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--089e01229762a5658f04d915db28
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Dear Sai Sai,

you wrote:
> key = 0 value = 10    10
> key = 6 value = 20    200
> ...

the provided key is the byte offset of the respective line in your input
file.
See TextInputFormat docs here:
http://hadoop.apache.org/docs/stable/api/org/apache/hadoop/mapred/TextInputFormat.html

I guess this is used as default, as you didn't specify something different
by using FileInputFormat...

Best regards,

Jens





Best regards,

Jens

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<div dir=3D"ltr"><div>Dear Sai Sai,<br><br>you wrote: <br>&gt; <span style=
=3D"font-weight:bold">key =3D 0
 </span>value =3D 10=A0=A0=A0 10<br><span style=3D"font-weight:bold">&gt; k=
ey =3D 6 </span>value =3D 20=A0=A0=A0 200<br>&gt; ...<br><br>the provided k=
ey is the byte offset of the respective line in your input file.<br></div><=
div>See TextInputFormat docs here: <a href=3D"http://hadoop.apache.org/docs=
/stable/api/org/apache/hadoop/mapred/TextInputFormat.html">http://hadoop.ap=
ache.org/docs/stable/api/org/apache/hadoop/mapred/TextInputFormat.html</a><=
br>
<br></div><div>I guess this is used as default, as you didn&#39;t specify s=
omething different by using FileInputFormat...<br><br></div><div>Best regar=
ds,<br><br>Jens<br></div><div><br><br><br><br></div><div><br></div>Best reg=
ards,<br>
<br>Jens<br></div>

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