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Posted to common-dev@hadoop.apache.org by wilbur_727 <wi...@hotmail.com> on 2007/09/26 11:17:40 UTC

Some questions about Nucth - InjectMapper- map() function

I am an absolutely newbie in Nutch.

I learned that Nutch is based on Hadoop. So I read some papers about  
MapReduced Algorithm .

Now, I am reading the source code of Hadoop 0.9 ,and ..got some problems
when  reading  class Injector .

...I can't quite  understand  the architecture of these codes.Here are my
questions:

1) what is a JobConf ? What happened when invoking JobClient.runJob()? 

2) Which class will invoke the map() or Reduce() function in Injector?  How
to pass the  parameters to

 map()?






Thx for you time reading this message.

Sorry for my poor english..
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