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Date: Sun, 23 Sep 2012 05:53:47 +0200
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 <CAO6W-2fgt1PXiOndASs2ujFAHzRLMD-Jz-SEUKFrgfQ-hEB6Pg@mail.gmail.com>
Subject: Re: How to set 2mappers on 1 job
From: Bertrand Dechoux <dechouxb@gmail.com>
To: user@hadoop.apache.org
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You can use the map.input.file property to decide which logic should your
mapper apply.
Regards
Bertrand

On Sun, Sep 23, 2012 at 5:40 AM, kumudu harshani
<kumuduharshani@gmail.com>wrote:

> Hi...
> Could someone help me with following scenario..
>
> I want implement a job which should get 2 mapper outputs and send them to
> 1 reducer. Attached image show the flow I wanted....
>
>
>
>
> Normal flow is like:
>
> JobConf conf2 = new JobConf(WordCount.class);
> Job job2 = new Job(conf2);
> conf2.setOutputKeyClass(IntWritable.class);
> conf2.setOutputValueClass(Text.class);
>
> conf2.setMapperClass(Map1.class);
> conf2.setReducerClass(Reduce1.class);
>
> --- where it takes 1 mapper and 1 reducer. What i want is to set 2
> maps(mapper1a, mapper1b) and 1 reducer...
> Is that possible, if so could someone please help..
>
> thanks
> kumudu
> --
>
> *Kumudu Samarappuli* | Creative Search Technologies, a Microsoft IEG
> Partner | Software Engineer I | m: +94 719 258 242 |
> www.microsoft.com/enterprisesearch
>
>


-- 
Bertrand Dechoux

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You can use the=A0map.input.file property to decide which logic should your=
 mapper apply.<div>Regards</div><div>Bertrand<br><br><div class=3D"gmail_qu=
ote">On Sun, Sep 23, 2012 at 5:40 AM, kumudu harshani <span dir=3D"ltr">&lt=
;<a href=3D"mailto:kumuduharshani@gmail.com" target=3D"_blank">kumuduharsha=
ni@gmail.com</a>&gt;</span> wrote:<br>
<blockquote class=3D"gmail_quote" style=3D"margin:0 0 0 .8ex;border-left:1p=
x #ccc solid;padding-left:1ex">Hi...<br>Could someone help me with followin=
g scenario..<br><br>I want implement a job which should get 2 mapper output=
s and send them to 1 reducer. Attached image show the flow I wanted....<br>
<br><img alt=3D""><br clear=3D"all">
<br><br>Normal flow is like:<br><span style=3D"color:rgb(0,0,153)"><br>JobC=
onf conf2 =3D new JobConf(WordCount.class);<br>Job job2 =3D new Job(conf2);=
<br>conf2.setOutputKeyClass(IntWritable.class);<br>conf2.setOutputValueClas=
s(Text.class);<br>

<br>conf2.setMapperClass(Map1.class);<br>conf2.setReducerClass(Reduce1.clas=
s);</span><br><br>--- where it takes 1 mapper and 1 reducer. What i want is=
 to set 2 maps(mapper1a, mapper1b) and 1 reducer... <br>Is that possible, i=
f so could someone please help..<br>

<br>thanks<span class=3D"HOEnZb"><font color=3D"#888888"><br>kumudu <br>-- =
<br><font face=3D"Times New Roman" size=3D"3">

</font><p style=3D"margin:3pt 0in 0pt"><a name=3D"139f13669c1ce93e_SafeHtml=
Filter__MailAutoSig"><b><span style=3D"color:rgb(64,64,64);font-size:10pt">=
<font face=3D"Calibri">Kumudu Samarappuli</font></span></b></a><font face=
=3D"Calibri"><span><span style=3D"color:rgb(64,64,64);font-size:10pt"> </sp=
an></span><span><span style=3D"color:rgb(89,89,89);font-size:10pt">| Creati=
ve Search Technologies, a Microsoft IEG Partner |
Software Engineer </span></span></font><span><span style=3D"color:rgb(89,89=
,89);font-family:&quot;Courier New&quot;;font-size:10pt">I</span></span><fo=
nt face=3D"Calibri"><span><span style=3D"color:rgb(89,89,89);font-size:10pt=
"> | m: <a href=3D"tel:%2B94%20719%20258%20242" value=3D"+94719258242" targ=
et=3D"_blank">+94 719 258 242</a> | </span></span><span></span></font><a hr=
ef=3D"http://www.microsoft.com/enterprisesearch" target=3D"_blank"><font fa=
ce=3D"Calibri"><span><span style=3D"color:blue;font-size:10pt">www.microsof=
t.com/enterprisesearch</span></span><span></span></font></a><span><span sty=
le=3D"color:rgb(89,89,89);font-size:10pt"></span></span></p>

<font face=3D"Times New Roman" size=3D"3">

</font><br>
</font></span></blockquote></div><br><br clear=3D"all"><div><br></div>-- <b=
r>Bertrand Dechoux<br>
</div>

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