title: How to run apache nutch different jobs in parallel manner
body: <p>I am using nutch 2.3. All jobs run one after other i.e. first generator, fetch, parse, index etc. I want to run some jobs simultaneously. I know some jobs cannot run in parallel but other can e.g parse job, dbupdate, indexjob should be run with fetch.</p>
  
  <p>Is it possible ? My basic objective is to run fetcher job all the time. I suppose that we can do it with different timestamp. 
  Can anyone guide me the proper way ?</p>