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From: Serge Blazhiyevskyy <Serge.Blazhiyevskyy@nice.com>
To: "user@hadoop.apache.org" <user@hadoop.apache.org>
Date: Tue, 15 Jan 2013 18:30:37 -0700
Subject: Re: newbie question
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Don't you need to set this

     conf.setMapperClass(Mapper.class);

to BuildGraph?


Serge


SERGE BLAZHIYEVSKY
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On Jan 15, 2013, at 5:24 PM, jamal sasha <jamalshasha@gmail.com<mailto:jama=
lshasha@gmail.com>> wrote:

I have a mapper


    public class BuildGraph{
       public void config(JobConf job){ <=3D=3Dthis block doesnt seems to b=
e exexcuting at all :(
        super.configure(job);
        this.currentId =3D job.getInt("currentId",0);
        if (this.currentId!=3D0){
        // I call a method from differnt class to build a distributed cache
        }
       }
      public void map(....){
    ....
    }
}

now the main code where this is called..

    public void run( String params,curId){
     JobConf conf =3D new JobConf(classname.class);
     conf.setInt("currentId",299); <--note this i am setting the value here
     conf.setMapperClass(Mapper.class);
     //....
      JobClient.runJob(conf);
    }

But the problem is config method in the code is not executing as though "cu=
rrentId" returns 299 in main loop but it is not set at all in the mapper cl=
ass.
what am i doing wrong