mapreduce - why close() method be synchronized while extending RecordReader in Hadoop -

May 15, 2010

I'm considering the example of a hoop-book of alexhomes

I do not understand Was that why the closest ways to synchronize? And why only closed () and no other method?

  IOException throws a non-public synchronized {} reader.close (); }    Can anyone explain me? It will be very helpful.   
 
  As I mentioned in the book, I used the class of the project on my basis For, as I wanted to write one that did not require LZOP compression, ElephantBird used a syncing closed method in its RecordReader, which resulted in my way in my version as the other mentioned that there is no reason Not that I'm MapReduce I know about syncing the closest method.   

 


  
















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