lucene with hadoop but without nutch, looking for documentation

[Samuel LEMOINE]

Hi Hadoopers !

I'm working on Hadoop for an internship, trying to find out its 
possibilities in use with Lucene... my problem is that I'v been reading 
loads of docs for a week or so, such as GoogleMapReduce & 
GoogleFileSystem documentations, HadoopFileSystem and HadoopMapReduce 
documentation, and I also glanced at the API javadoc... but all these 
docs seems quite arcane to me.
Would anyone give me a track, a tutorial about beginning with Hadoop, 
how to interface it with a Lucene software ? I've already searched in 
Hadoop's wiki and Hadoop's website documentation, without any clear 
success... any help will be greatly appreciated :)

thanks,

Samuel